Book/imagick-Phpdoc专题
图像处理(ImageMagick)
目录
- 简介
- 安装/配置
- 预定义常量
- 范例
- Imagick — The Imagick class
- Imagick::adaptiveBlurImage — Adds adaptive blur filter to image
- Imagick::adaptiveResizeImage — Adaptively resize image with data dependent triangulation
- Imagick::adaptiveSharpenImage — Adaptively sharpen the image
- Imagick::adaptiveThresholdImage — Selects a threshold for each pixel based on a range of intensity
- Imagick::addImage — Adds new image to Imagick object image list
- Imagick::addNoiseImage — Adds random noise to the image
- Imagick::affineTransformImage — Transforms an image
- Imagick::animateImages — Animates an image or images
- Imagick::annotateImage — Annotates an image with text
- Imagick::appendImages — Append a set of images
- Imagick::autoLevelImage — Description
- Imagick::averageImages — Average a set of images
- Imagick::blackThresholdImage — Forces all pixels below the threshold into black
- Imagick::blueShiftImage — Description
- Imagick::blurImage — Adds blur filter to image
- Imagick::borderImage — Surrounds the image with a border
- Imagick::brightnessContrastImage — Description
- Imagick::charcoalImage — Simulates a charcoal drawing
- Imagick::chopImage — Removes a region of an image and trims
- Imagick::clampImage — Description
- Imagick::clear — Clears all resources associated to Imagick object
- Imagick::clipImage — Clips along the first path from the 8BIM profile
- Imagick::clipImagePath — Description
- Imagick::clipPathImage — Clips along the named paths from the 8BIM profile
- Imagick::clone — Makes an exact copy of the Imagick object
- Imagick::clutImage — Replaces colors in the image
- Imagick::coalesceImages — Composites a set of images
- Imagick::colorFloodfillImage — Changes the color value of any pixel that matches target
- Imagick::colorizeImage — Blends the fill color with the image
- Imagick::colorMatrixImage — Description
- Imagick::combineImages — Combines one or more images into a single image
- Imagick::commentImage — Adds a comment to your image
- Imagick::compareImageChannels — Returns the difference in one or more images
- Imagick::compareImageLayers — Returns the maximum bounding region between images
- Imagick::compareImages — Compares an image to a reconstructed image
- Imagick::compositeImage — 把一张图合并到一张图
- Imagick::__construct — The Imagick constructor
- Imagick::contrastImage — Change the contrast of the image
- Imagick::contrastStretchImage — Enhances the contrast of a color image
- Imagick::convolveImage — Applies a custom convolution kernel to the image
- Imagick::count — Get the number of images
- Imagick::cropImage — 截图图片的一块区域
- Imagick::cropThumbnailImage — 创建缩略图
- Imagick::current — Returns a reference to the current Imagick object
- Imagick::cycleColormapImage — Displaces an image's colormap
- Imagick::decipherImage — Deciphers an image
- Imagick::deconstructImages — Returns certain pixel differences between images
- Imagick::deleteImageArtifact — Delete image artifact
- Imagick::deleteImageProperty — Description
- Imagick::deskewImage — Removes skew from the image
- Imagick::despeckleImage — Reduces the speckle noise in an image
- Imagick::destroy — Destroys the Imagick object
- Imagick::displayImage — Displays an image
- Imagick::displayImages — Displays an image or image sequence
- Imagick::distortImage — Distorts an image using various distortion methods
- Imagick::drawImage — 把 ImagickDraw 对象渲染到当前图片上
- Imagick::edgeImage — Enhance edges within the image
- Imagick::embossImage — Returns a grayscale image with a three-dimensional effect
- Imagick::encipherImage — Enciphers an image
- Imagick::enhanceImage — Improves the quality of a noisy image
- Imagick::equalizeImage — Equalizes the image histogram
- Imagick::evaluateImage — Applies an expression to an image
- Imagick::exportImagePixels — Exports raw image pixels
- Imagick::extentImage — Set image size
- Imagick::filter — Description
- Imagick::flattenImages — Merges a sequence of images
- Imagick::flipImage — Creates a vertical mirror image
- Imagick::floodFillPaintImage — Changes the color value of any pixel that matches target
- Imagick::flopImage — Creates a vertical mirror image
- Imagick::forwardFourierTransformImage — Description
- Imagick::frameImage — Adds a simulated three-dimensional border
- Imagick::functionImage — Applies a function on the image
- Imagick::fxImage — Evaluate expression for each pixel in the image
- Imagick::gammaImage — Gamma-corrects an image
- Imagick::gaussianBlurImage — Blurs an image
- Imagick::getColorspace — Gets the colorspace
- Imagick::getCompression — Gets the object compression type
- Imagick::getCompressionQuality — Gets the object compression quality
- Imagick::getCopyright — Returns the ImageMagick API copyright as a string
- Imagick::getFilename — The filename associated with an image sequence
- Imagick::getFont — Gets font
- Imagick::getFormat — Returns the format of the Imagick object
- Imagick::getGravity — Gets the gravity
- Imagick::getHomeURL — Returns the ImageMagick home URL
- Imagick::getImage — Returns a new Imagick object
- Imagick::getImageAlphaChannel — 获取图像的 alpha 通道
- Imagick::getImageArtifact — Get image artifact
- Imagick::getImageAttribute — Description
- Imagick::getImageBackgroundColor — Returns the image background color
- Imagick::getImageBlob — Returns the image sequence as a blob
- Imagick::getImageBluePrimary — Returns the chromaticy blue primary point
- Imagick::getImageBorderColor — Returns the image border color
- Imagick::getImageChannelDepth — Gets the depth for a particular image channel
- Imagick::getImageChannelDistortion — Compares image channels of an image to a reconstructed image
- Imagick::getImageChannelDistortions — Gets channel distortions
- Imagick::getImageChannelExtrema — Gets the extrema for one or more image channels
- Imagick::getImageChannelKurtosis — The getImageChannelKurtosis purpose
- Imagick::getImageChannelMean — Gets the mean and standard deviation
- Imagick::getImageChannelRange — Gets channel range
- Imagick::getImageChannelStatistics — Returns statistics for each channel in the image
- Imagick::getImageClipMask — Gets image clip mask
- Imagick::getImageColormapColor — Returns the color of the specified colormap index
- Imagick::getImageColors — Gets the number of unique colors in the image
- Imagick::getImageColorspace — Gets the image colorspace
- Imagick::getImageCompose — Returns the composite operator associated with the image
- Imagick::getImageCompression — Gets the current image's compression type
- Imagick::getImageCompressionQuality — Gets the current image's compression quality
- Imagick::getImageDelay — Gets the image delay
- Imagick::getImageDepth — Gets the image depth
- Imagick::getImageDispose — Gets the image disposal method
- Imagick::getImageDistortion — Compares an image to a reconstructed image
- Imagick::getImageExtrema — Gets the extrema for the image
- Imagick::getImageFilename — Returns the filename of a particular image in a sequence
- Imagick::getImageFormat — Returns the format of a particular image in a sequence
- Imagick::getImageGamma — Gets the image gamma
- Imagick::getImageGeometry — Gets the width and height as an associative array
- Imagick::getImageGravity — Gets the image gravity
- Imagick::getImageGreenPrimary — Returns the chromaticy green primary point
- Imagick::getImageHeight — Returns the image height
- Imagick::getImageHistogram — Gets the image histogram
- Imagick::getImageIndex — Gets the index of the current active image
- Imagick::getImageInterlaceScheme — Gets the image interlace scheme
- Imagick::getImageInterpolateMethod — Returns the interpolation method
- Imagick::getImageIterations — Gets the image iterations
- Imagick::getImageLength — Returns the image length in bytes
- Imagick::getImageMatte — Return if the image has a matte channel
- Imagick::getImageMatteColor — Returns the image matte color
- Imagick::getImageMimeType — Description
- Imagick::getImageOrientation — Gets the image orientation
- Imagick::getImagePage — Returns the page geometry
- Imagick::getImagePixelColor — Returns the color of the specified pixel
- Imagick::getImageProfile — Returns the named image profile
- Imagick::getImageProfiles — Returns the image profiles
- Imagick::getImageProperties — Returns the image properties
- Imagick::getImageProperty — Returns the named image property
- Imagick::getImageRedPrimary — Returns the chromaticity red primary point
- Imagick::getImageRegion — Extracts a region of the image
- Imagick::getImageRenderingIntent — Gets the image rendering intent
- Imagick::getImageResolution — 获取图像的x,y轴分辨率
- Imagick::getImagesBlob — Returns all image sequences as a blob
- Imagick::getImageScene — Gets the image scene
- Imagick::getImageSignature — Generates an SHA-256 message digest
- Imagick::getImageSize — Returns the image length in bytes
- Imagick::getImageTicksPerSecond — Gets the image ticks-per-second
- Imagick::getImageTotalInkDensity — Gets the image total ink density
- Imagick::getImageType — Gets the potential image type
- Imagick::getImageUnits — 获取图像的分辨率单位
- Imagick::getImageVirtualPixelMethod — Returns the virtual pixel method
- Imagick::getImageWhitePoint — Returns the chromaticity white point
- Imagick::getImageWidth — Returns the image width
- Imagick::getInterlaceScheme — Gets the object interlace scheme
- Imagick::getIteratorIndex — Gets the index of the current active image
- Imagick::getNumberImages — Returns the number of images in the object
- Imagick::getOption — Returns a value associated with the specified key
- Imagick::getPackageName — Returns the ImageMagick package name
- Imagick::getPage — Returns the page geometry
- Imagick::getPixelIterator — Returns a MagickPixelIterator
- Imagick::getPixelRegionIterator — Get an ImagickPixelIterator for an image section
- Imagick::getPointSize — Gets point size
- Imagick::getQuantum — Description
- Imagick::getQuantumDepth — Gets the quantum depth
- Imagick::getQuantumRange — Returns the Imagick quantum range
- Imagick::getRegistry — Description
- Imagick::getReleaseDate — Returns the ImageMagick release date
- Imagick::getResource — Returns the specified resource's memory usage
- Imagick::getResourceLimit — Returns the specified resource limit
- Imagick::getSamplingFactors — Gets the horizontal and vertical sampling factor
- Imagick::getSize — Returns the size associated with the Imagick object
- Imagick::getSizeOffset — Returns the size offset
- Imagick::getVersion — Returns the ImageMagick API version
- Imagick::haldClutImage — Replaces colors in the image
- Imagick::hasNextImage — Checks if the object has more images
- Imagick::hasPreviousImage — Checks if the object has a previous image
- Imagick::identifyFormat — Description
- Imagick::identifyImage — Identifies an image and fetches attributes
- Imagick::implodeImage — Creates a new image as a copy
- Imagick::importImagePixels — Imports image pixels
- Imagick::inverseFourierTransformImage — Description
- Imagick::labelImage — Adds a label to an image
- Imagick::levelImage — Adjusts the levels of an image
- Imagick::linearStretchImage — Stretches with saturation the image intensity
- Imagick::liquidRescaleImage — Animates an image or images
- Imagick::listRegistry — Description
- Imagick::magnifyImage — Scales an image proportionally 2x
- Imagick::mapImage — Replaces the colors of an image with the closest color from a reference image
- Imagick::matteFloodfillImage — Changes the transparency value of a color
- Imagick::medianFilterImage — Applies a digital filter
- Imagick::mergeImageLayers — Merges image layers
- Imagick::minifyImage — Scales an image proportionally to half its size
- Imagick::modulateImage — Control the brightness, saturation, and hue
- Imagick::montageImage — Creates a composite image
- Imagick::morphImages — Method morphs a set of images
- Imagick::morphology — Description
- Imagick::mosaicImages — Forms a mosaic from images
- Imagick::motionBlurImage — Simulates motion blur
- Imagick::negateImage — Negates the colors in the reference image
- Imagick::newImage — 创建一张图片
- Imagick::newPseudoImage — Creates a new image
- Imagick::nextImage — Moves to the next image
- Imagick::normalizeImage — Enhances the contrast of a color image
- Imagick::oilPaintImage — Simulates an oil painting
- Imagick::opaquePaintImage — Changes the color value of any pixel that matches target
- Imagick::optimizeImageLayers — Removes repeated portions of images to optimize
- Imagick::orderedPosterizeImage — Performs an ordered dither
- Imagick::paintFloodfillImage — Changes the color value of any pixel that matches target
- Imagick::paintOpaqueImage — Change any pixel that matches color
- Imagick::paintTransparentImage — Changes any pixel that matches color with the color defined by fill
- Imagick::pingImage — Fetch basic attributes about the image
- Imagick::pingImageBlob — Quickly fetch attributes
- Imagick::pingImageFile — Get basic image attributes in a lightweight manner
- Imagick::polaroidImage — Simulates a Polaroid picture
- Imagick::posterizeImage — Reduces the image to a limited number of color level
- Imagick::previewImages — Quickly pin-point appropriate parameters for image processing
- Imagick::previousImage — Move to the previous image in the object
- Imagick::profileImage — Adds or removes a profile from an image
- Imagick::quantizeImage — Analyzes the colors within a reference image
- Imagick::quantizeImages — Analyzes the colors within a sequence of images
- Imagick::queryFontMetrics — Returns an array representing the font metrics
- Imagick::queryFonts — Returns the configured fonts
- Imagick::queryFormats — Returns formats supported by Imagick
- Imagick::radialBlurImage — Radial blurs an image
- Imagick::raiseImage — Creates a simulated 3d button-like effect
- Imagick::randomThresholdImage — Creates a high-contrast, two-color image
- Imagick::readImage — Reads image from filename
- Imagick::readImageBlob — 从二进制字符串里读取图片
- Imagick::readImageFile — Reads image from open filehandle
- Imagick::readimages — Description
- Imagick::recolorImage — Recolors image
- Imagick::reduceNoiseImage — Smooths the contours of an image
- Imagick::remapImage — Remaps image colors
- Imagick::removeImage — Removes an image from the image list
- Imagick::removeImageProfile — Removes the named image profile and returns it
- Imagick::render — Renders all preceding drawing commands
- Imagick::resampleImage — Resample image to desired resolution
- Imagick::resetImagePage — Reset image page
- Imagick::resizeImage — Scales an image
- Imagick::rollImage — Offsets an image
- Imagick::rotateImage — Rotates an image
- Imagick::rotationalBlurImage — Description
- Imagick::roundCorners — Rounds image corners
- Imagick::sampleImage — Scales an image with pixel sampling
- Imagick::scaleImage — Scales the size of an image
- Imagick::segmentImage — Segments an image
- Imagick::selectiveBlurImage — Description
- Imagick::separateImageChannel — Separates a channel from the image
- Imagick::sepiaToneImage — Sepia tones an image
- Imagick::setBackgroundColor — Sets the object's default background color
- Imagick::setColorspace — Set colorspace
- Imagick::setCompression — Sets the object's default compression type
- Imagick::setCompressionQuality — Sets the object's default compression quality
- Imagick::setFilename — Sets the filename before you read or write the image
- Imagick::setFirstIterator — Sets the Imagick iterator to the first image
- Imagick::setFont — Sets font
- Imagick::setFormat — Sets the format of the Imagick object
- Imagick::setGravity — Sets the gravity
- Imagick::setImage — Replaces image in the object
- Imagick::setImageAlphaChannel — Sets image alpha channel
- Imagick::setImageArtifact — Set image artifact
- Imagick::setImageAttribute — Description
- Imagick::setImageBackgroundColor — Sets the image background color
- Imagick::setImageBias — Sets the image bias for any method that convolves an image
- Imagick::setImageBiasQuantum — Description
- Imagick::setImageBluePrimary — Sets the image chromaticity blue primary point
- Imagick::setImageBorderColor — Sets the image border color
- Imagick::setImageChannelDepth — Sets the depth of a particular image channel
- Imagick::setImageClipMask — Sets image clip mask
- Imagick::setImageColormapColor — Sets the color of the specified colormap index
- Imagick::setImageColorspace — Sets the image colorspace
- Imagick::setImageCompose — Sets the image composite operator
- Imagick::setImageCompression — 设置图片压缩的类型
- Imagick::setImageCompressionQuality — 设置图片压缩的质量
- Imagick::setImageDelay — Sets the image delay
- Imagick::setImageDepth — Sets the image depth
- Imagick::setImageDispose — Sets the image disposal method
- Imagick::setImageExtent — Sets the image size
- Imagick::setImageFilename — Sets the filename of a particular image
- Imagick::setImageFormat — 为图片设置指定的格式
- Imagick::setImageGamma — Sets the image gamma
- Imagick::setImageGravity — Sets the image gravity
- Imagick::setImageGreenPrimary — Sets the image chromaticity green primary point
- Imagick::setImageIndex — Set the iterator position
- Imagick::setImageInterlaceScheme — Sets the image compression
- Imagick::setImageInterpolateMethod — Sets the image interpolate pixel method
- Imagick::setImageIterations — Sets the image iterations
- Imagick::setImageMatte — Sets the image matte channel
- Imagick::setImageMatteColor — Sets the image matte color
- Imagick::setImageOpacity — Sets the image opacity level
- Imagick::setImageOrientation — Sets the image orientation
- Imagick::setImagePage — Sets the page geometry of the image
- Imagick::setImageProfile — Adds a named profile to the Imagick object
- Imagick::setImageProperty — Sets an image property
- Imagick::setImageRedPrimary — Sets the image chromaticity red primary point
- Imagick::setImageRenderingIntent — Sets the image rendering intent
- Imagick::setImageResolution — Sets the image resolution
- Imagick::setImageScene — Sets the image scene
- Imagick::setImageTicksPerSecond — Sets the image ticks-per-second
- Imagick::setImageType — Sets the image type
- Imagick::setImageUnits — Sets the image units of resolution
- Imagick::setImageVirtualPixelMethod — Sets the image virtual pixel method
- Imagick::setImageWhitePoint — Sets the image chromaticity white point
- Imagick::setInterlaceScheme — Sets the image compression
- Imagick::setIteratorIndex — Set the iterator position
- Imagick::setLastIterator — Sets the Imagick iterator to the last image
- Imagick::setOption — Set an option
- Imagick::setPage — Sets the page geometry of the Imagick object
- Imagick::setPointSize — Sets point size
- Imagick::setProgressMonitor — Description
- Imagick::setRegistry — Description
- Imagick::setResolution — Sets the image resolution
- Imagick::setResourceLimit — Sets the limit for a particular resource
- Imagick::setSamplingFactors — Sets the image sampling factors
- Imagick::setSize — Sets the size of the Imagick object
- Imagick::setSizeOffset — Sets the size and offset of the Imagick object
- Imagick::setType — Sets the image type attribute
- Imagick::shadeImage — Creates a 3D effect
- Imagick::shadowImage — Simulates an image shadow
- Imagick::sharpenImage — Sharpens an image
- Imagick::shaveImage — Shaves pixels from the image edges
- Imagick::shearImage — Creating a parallelogram
- Imagick::sigmoidalContrastImage — Adjusts the contrast of an image
- Imagick::sketchImage — Simulates a pencil sketch
- Imagick::smushImages — Description
- Imagick::solarizeImage — Applies a solarizing effect to the image
- Imagick::sparseColorImage — Interpolates colors
- Imagick::spliceImage — Splices a solid color into the image
- Imagick::spreadImage — Randomly displaces each pixel in a block
- Imagick::statisticImage — Description
- Imagick::steganoImage — Hides a digital watermark within the image
- Imagick::stereoImage — Composites two images
- Imagick::stripImage — 去掉图片的所有配置和设置
- Imagick::subImageMatch — Description
- Imagick::swirlImage — Swirls the pixels about the center of the image
- Imagick::textureImage — Repeatedly tiles the texture image
- Imagick::thresholdImage — Changes the value of individual pixels based on a threshold
- Imagick::thumbnailImage — Changes the size of an image
- Imagick::tintImage — Applies a color vector to each pixel in the image
- Imagick::__toString — Returns the image as a string
- Imagick::transformImage — Convenience method for setting crop size and the image geometry
- Imagick::transformImageColorspace — Transforms an image to a new colorspace
- Imagick::transparentPaintImage — Paints pixels transparent
- Imagick::transposeImage — Creates a vertical mirror image
- Imagick::transverseImage — Creates a horizontal mirror image
- Imagick::trimImage — Remove edges from the image
- Imagick::uniqueImageColors — Discards all but one of any pixel color
- Imagick::unsharpMaskImage — Sharpens an image
- Imagick::valid — Checks if the current item is valid
- Imagick::vignetteImage — Adds vignette filter to the image
- Imagick::waveImage — Applies wave filter to the image
- Imagick::whiteThresholdImage — Force all pixels above the threshold into white
- Imagick::writeImage — 把图片写入指定的文件
- Imagick::writeImageFile — Writes an image to a filehandle
- Imagick::writeImages — Writes an image or image sequence
- Imagick::writeImagesFile — Writes frames to a filehandle
- ImagickDraw — The ImagickDraw class
- ImagickDraw::affine — Adjusts the current affine transformation matrix
- ImagickDraw::annotation — Draws text on the image
- ImagickDraw::arc — Draws an arc
- ImagickDraw::bezier — Draws a bezier curve
- ImagickDraw::circle — Draws a circle
- ImagickDraw::clear — Clears the ImagickDraw
- ImagickDraw::clone — Makes an exact copy of the specified ImagickDraw object
- ImagickDraw::color — Draws color on image
- ImagickDraw::comment — Adds a comment
- ImagickDraw::composite — Composites an image onto the current image
- ImagickDraw::__construct — The ImagickDraw constructor
- ImagickDraw::destroy — Frees all associated resources
- ImagickDraw::ellipse — Draws an ellipse on the image
- ImagickDraw::getClipPath — Obtains the current clipping path ID
- ImagickDraw::getClipRule — Returns the current polygon fill rule
- ImagickDraw::getClipUnits — Returns the interpretation of clip path units
- ImagickDraw::getFillColor — Returns the fill color
- ImagickDraw::getFillOpacity — Returns the opacity used when drawing
- ImagickDraw::getFillRule — Returns the fill rule
- ImagickDraw::getFont — Returns the font
- ImagickDraw::getFontFamily — Returns the font family
- ImagickDraw::getFontSize — Returns the font pointsize
- ImagickDraw::getFontStretch — Description
- ImagickDraw::getFontStyle — Returns the font style
- ImagickDraw::getFontWeight — Returns the font weight
- ImagickDraw::getGravity — Returns the text placement gravity
- ImagickDraw::getStrokeAntialias — Returns the current stroke antialias setting
- ImagickDraw::getStrokeColor — Returns the color used for stroking object outlines
- ImagickDraw::getStrokeDashArray — Returns an array representing the pattern of dashes and gaps used to stroke paths
- ImagickDraw::getStrokeDashOffset — Returns the offset into the dash pattern to start the dash
- ImagickDraw::getStrokeLineCap — Returns the shape to be used at the end of open subpaths when they are stroked
- ImagickDraw::getStrokeLineJoin — Returns the shape to be used at the corners of paths when they are stroked
- ImagickDraw::getStrokeMiterLimit — Returns the stroke miter limit
- ImagickDraw::getStrokeOpacity — Returns the opacity of stroked object outlines
- ImagickDraw::getStrokeWidth — Returns the width of the stroke used to draw object outlines
- ImagickDraw::getTextAlignment — Returns the text alignment
- ImagickDraw::getTextAntialias — Returns the current text antialias setting
- ImagickDraw::getTextDecoration — Returns the text decoration
- ImagickDraw::getTextEncoding — Returns the code set used for text annotations
- ImagickDraw::getTextInterlineSpacing — Description
- ImagickDraw::getTextInterwordSpacing — Description
- ImagickDraw::getTextKerning — Description
- ImagickDraw::getTextUnderColor — Returns the text under color
- ImagickDraw::getVectorGraphics — Returns a string containing vector graphics
- ImagickDraw::line — Draws a line
- ImagickDraw::matte — Paints on the image's opacity channel
- ImagickDraw::pathClose — Adds a path element to the current path
- ImagickDraw::pathCurveToAbsolute — Draws a cubic Bezier curve
- ImagickDraw::pathCurveToQuadraticBezierAbsolute — Draws a quadratic Bezier curve
- ImagickDraw::pathCurveToQuadraticBezierRelative — Draws a quadratic Bezier curve
- ImagickDraw::pathCurveToQuadraticBezierSmoothAbsolute — Draws a quadratic Bezier curve
- ImagickDraw::pathCurveToQuadraticBezierSmoothRelative — Draws a quadratic Bezier curve
- ImagickDraw::pathCurveToRelative — Draws a cubic Bezier curve
- ImagickDraw::pathCurveToSmoothAbsolute — Draws a cubic Bezier curve
- ImagickDraw::pathCurveToSmoothRelative — Draws a cubic Bezier curve
- ImagickDraw::pathEllipticArcAbsolute — Draws an elliptical arc
- ImagickDraw::pathEllipticArcRelative — Draws an elliptical arc
- ImagickDraw::pathFinish — Terminates the current path
- ImagickDraw::pathLineToAbsolute — Draws a line path
- ImagickDraw::pathLineToHorizontalAbsolute — Draws a horizontal line path
- ImagickDraw::pathLineToHorizontalRelative — Draws a horizontal line
- ImagickDraw::pathLineToRelative — Draws a line path
- ImagickDraw::pathLineToVerticalAbsolute — Draws a vertical line
- ImagickDraw::pathLineToVerticalRelative — Draws a vertical line path
- ImagickDraw::pathMoveToAbsolute — Starts a new sub-path
- ImagickDraw::pathMoveToRelative — Starts a new sub-path
- ImagickDraw::pathStart — Declares the start of a path drawing list
- ImagickDraw::point — Draws a point
- ImagickDraw::polygon — Draws a polygon
- ImagickDraw::polyline — Draws a polyline
- ImagickDraw::pop — Destroys the current ImagickDraw in the stack, and returns to the previously pushed ImagickDraw
- ImagickDraw::popClipPath — Terminates a clip path definition
- ImagickDraw::popDefs — Terminates a definition list
- ImagickDraw::popPattern — Terminates a pattern definition
- ImagickDraw::push — Clones the current ImagickDraw and pushes it to the stack
- ImagickDraw::pushClipPath — Starts a clip path definition
- ImagickDraw::pushDefs — Indicates that following commands create named elements for early processing
- ImagickDraw::pushPattern — Indicates that subsequent commands up to a ImagickDraw::opPattern() command comprise the definition of a named pattern
- ImagickDraw::rectangle — Draws a rectangle
- ImagickDraw::render — Renders all preceding drawing commands onto the image
- ImagickDraw::resetVectorGraphics — Description
- ImagickDraw::rotate — Applies the specified rotation to the current coordinate space
- ImagickDraw::roundRectangle — Draws a rounded rectangle
- ImagickDraw::scale — Adjusts the scaling factor
- ImagickDraw::setClipPath — Associates a named clipping path with the image
- ImagickDraw::setClipRule — Set the polygon fill rule to be used by the clipping path
- ImagickDraw::setClipUnits — Sets the interpretation of clip path units
- ImagickDraw::setFillAlpha — Sets the opacity to use when drawing using the fill color or fill texture
- ImagickDraw::setFillColor — Sets the fill color to be used for drawing filled objects
- ImagickDraw::setFillOpacity — Sets the opacity to use when drawing using the fill color or fill texture
- ImagickDraw::setFillPatternURL — Sets the URL to use as a fill pattern for filling objects
- ImagickDraw::setFillRule — Sets the fill rule to use while drawing polygons
- ImagickDraw::setFont — Sets the fully-specified font to use when annotating with text
- ImagickDraw::setFontFamily — Sets the font family to use when annotating with text
- ImagickDraw::setFontSize — Sets the font pointsize to use when annotating with text
- ImagickDraw::setFontStretch — Sets the font stretch to use when annotating with text
- ImagickDraw::setFontStyle — Sets the font style to use when annotating with text
- ImagickDraw::setFontWeight — Sets the font weight
- ImagickDraw::setGravity — Sets the text placement gravity
- ImagickDraw::setResolution — Description
- ImagickDraw::setStrokeAlpha — Specifies the opacity of stroked object outlines
- ImagickDraw::setStrokeAntialias — Controls whether stroked outlines are antialiased
- ImagickDraw::setStrokeColor — Sets the color used for stroking object outlines
- ImagickDraw::setStrokeDashArray — Specifies the pattern of dashes and gaps used to stroke paths
- ImagickDraw::setStrokeDashOffset — Specifies the offset into the dash pattern to start the dash
- ImagickDraw::setStrokeLineCap — Specifies the shape to be used at the end of open subpaths when they are stroked
- ImagickDraw::setStrokeLineJoin — Specifies the shape to be used at the corners of paths when they are stroked
- ImagickDraw::setStrokeMiterLimit — Specifies the miter limit
- ImagickDraw::setStrokeOpacity — Specifies the opacity of stroked object outlines
- ImagickDraw::setStrokePatternURL — Sets the pattern used for stroking object outlines
- ImagickDraw::setStrokeWidth — Sets the width of the stroke used to draw object outlines
- ImagickDraw::setTextAlignment — Specifies a text alignment
- ImagickDraw::setTextAntialias — Controls whether text is antialiased
- ImagickDraw::setTextDecoration — Specifies a decoration
- ImagickDraw::setTextEncoding — Specifies the text code set
- ImagickDraw::setTextInterlineSpacing — Description
- ImagickDraw::setTextInterwordSpacing — Description
- ImagickDraw::setTextKerning — Description
- ImagickDraw::setTextUnderColor — Specifies the color of a background rectangle
- ImagickDraw::setVectorGraphics — Sets the vector graphics
- ImagickDraw::setViewbox — Sets the overall canvas size
- ImagickDraw::skewX — Skews the current coordinate system in the horizontal direction
- ImagickDraw::skewY — Skews the current coordinate system in the vertical direction
- ImagickDraw::translate — Applies a translation to the current coordinate system
- ImagickPixel — The ImagickPixel class
- ImagickPixel::clear — Clears resources associated with this object
- ImagickPixel::__construct — The ImagickPixel constructor
- ImagickPixel::destroy — Deallocates resources associated with this object
- ImagickPixel::getColor — Returns the color
- ImagickPixel::getColorAsString — Returns the color as a string
- ImagickPixel::getColorCount — Returns the color count associated with this color
- ImagickPixel::getColorQuantum — Description
- ImagickPixel::getColorValue — Gets the normalized value of the provided color channel
- ImagickPixel::getColorValueQuantum — Description
- ImagickPixel::getHSL — Returns the normalized HSL color of the ImagickPixel object
- ImagickPixel::getIndex — Description
- ImagickPixel::isPixelSimilar — Check the distance between this color and another
- ImagickPixel::isPixelSimilarQuantum — Description
- ImagickPixel::isSimilar — Check the distance between this color and another
- ImagickPixel::setColor — Sets the color
- ImagickPixel::setColorCount — Description
- ImagickPixel::setColorValue — Sets the normalized value of one of the channels
- ImagickPixel::setColorValueQuantum — Description
- ImagickPixel::setHSL — Sets the normalized HSL color
- ImagickPixel::setIndex — Description
- ImagickPixelIterator — The
ImagickPixelIterator class
- ImagickPixelIterator::clear — Clear resources associated with a PixelIterator
- ImagickPixelIterator::__construct — The ImagickPixelIterator constructor
- ImagickPixelIterator::destroy — Deallocates resources associated with a PixelIterator
- ImagickPixelIterator::getCurrentIteratorRow — Returns the current row of ImagickPixel objects
- ImagickPixelIterator::getIteratorRow — Returns the current pixel iterator row
- ImagickPixelIterator::getNextIteratorRow — Returns the next row of the pixel iterator
- ImagickPixelIterator::getPreviousIteratorRow — Returns the previous row
- ImagickPixelIterator::newPixelIterator — Returns a new pixel iterator
- ImagickPixelIterator::newPixelRegionIterator — Returns a new pixel iterator
- ImagickPixelIterator::resetIterator — Resets the pixel iterator
- ImagickPixelIterator::setIteratorFirstRow — Sets the pixel iterator to the first pixel row
- ImagickPixelIterator::setIteratorLastRow — Sets the pixel iterator to the last pixel row
- ImagickPixelIterator::setIteratorRow — Set the pixel iterator row
- ImagickPixelIterator::syncIterator — Syncs the pixel iterator
类摘要
Imagick
class Imagick <span class="oointerface">implements <span class="interfacename">Iterator {
public bool
adaptiveBlurImage ( <span
class="methodparam">float $radius
,
float
$sigma
[, <span
class="type">int $channel
=
Imagick::CHANNEL_DEFAULT ] )
public bool
adaptiveResizeImage ( <span
class="methodparam">int $columns
,
int $rows
[, bool
$bestfit
= false
[,
bool $legacy
<span
class="initializer"> = false
]] )
public bool
adaptiveSharpenImage ( <span
class="methodparam">float $radius
,
float
$sigma
[, <span
class="type">int $channel
=
Imagick::CHANNEL_DEFAULT ] )
public bool
adaptiveThresholdImage ( <span
class="methodparam">int $width
,
int $height
, int
$offset
)
public bool
addImage ( <span
class="methodparam">Imagick $source
)
public bool
addNoiseImage ( <span
class="methodparam">int $noise_type
[, int
$channel
=
Imagick::CHANNEL_DEFAULT ] )
public bool
affineTransformImage ( <span
class="methodparam">ImagickDraw
$matrix
)
public bool
animateImages ( <span
class="methodparam">string $x_server
)
public bool
annotateImage ( <span
class="methodparam">ImagickDraw
$draw_settings
, <span
class="type">float $x
, <span
class="type">float $y
, <span
class="type">float $angle
, <span
class="methodparam">string $text
)
public Imagick
appendImages ( <span
class="methodparam">bool $stack
)
public bool
autoLevelImage ([ <span
class="methodparam">int $channel
<span
class="initializer"> = Imagick::CHANNEL_DEFAULT ] )
public Imagick averageImages ( <span class="methodparam">void )
public bool
blackThresholdImage ( <span
class="methodparam">mixed $threshold
)
public bool
blueShiftImage ([ <span
class="methodparam">float $factor
<span
class="initializer"> = 1.5 ] )
public bool
blurImage ( <span
class="methodparam">float $radius
,
float
$sigma
[, <span
class="type">int $channel
] )
public bool
borderImage ( <span
class="methodparam">mixed
$bordercolor
, <span
class="type">int $width
, <span
class="methodparam">int $height
)
public bool
brightnessContrastImage ( <span
class="methodparam">float $brightness
, float
$contrast
[, <span
class="type">int $channel
=
Imagick::CHANNEL_DEFAULT ] )
public bool
charcoalImage ( <span
class="methodparam">float $radius
,
float
$sigma
)
public bool
chopImage ( <span
class="methodparam">int $width
,
int $height
, int $x
,
int $y
)
public bool
clampImage ([ <span
class="methodparam">int $channel
<span
class="initializer"> = Imagick::CHANNEL_DEFAULT ] )
public bool clear ( <span class="methodparam">void )
public bool clipImage ( <span class="methodparam">void )
public void
clipImagePath ( <span
class="methodparam">string $pathname
, string
$inside
)
public bool
clipPathImage ( <span
class="methodparam">string $pathname
, bool
$inside
)
public Imagick clone ( <span class="methodparam">void )
public bool
clutImage ( <span
class="methodparam">Imagick
$lookup_table
[, <span
class="type">int $channel
=
Imagick::CHANNEL_DEFAULT ] )
public Imagick coalesceImages ( <span class="methodparam">void )
public bool
colorFloodfillImage ( <span
class="methodparam">mixed $fill
,
float $fuzz
, mixed
$bordercolor
, <span
class="type">int $x
, <span
class="type">int $y
)
public bool
colorizeImage ( <span
class="methodparam">mixed $colorize
,
mixed
$opacity
[, <span
class="type">bool $legacy
=
false
] )
public bool
colorMatrixImage ( <span
class="methodparam">array $color_matrix
<span
class="initializer"> = Imagick::CHANNEL_DEFAULT )
public Imagick
combineImages ( <span
class="methodparam">int $channelType
)
public bool
commentImage ( <span
class="methodparam">string $comment
)
public array
compareImageChannels ( <span
class="methodparam">Imagick $image
,
int
$channelType
, <span
class="type">int $metricType
)
public Imagick
compareImageLayers ( <span
class="methodparam">int $method
)
public array
compareImages ( <span
class="methodparam">Imagick $compare
, int
$metric
)
bool <span
class="methodname">compositeImage ( <span
class="methodparam">Imagick
$composite_object
, <span
class="type">int $composite
, <span
class="methodparam">int $x
, <span
class="methodparam">int $y
[, <span
class="methodparam">int $channel
<span
class="initializer"> = Imagick::CHANNEL_ALL ] )
public <span
class="methodname">__construct ([ <span
class="methodparam">mixed $files
] )
public bool
contrastImage ( <span
class="methodparam">bool $sharpen
)
public bool
contrastStretchImage ( <span
class="methodparam">float
$black_point
, <span
class="type">float $white_point
[, <span
class="methodparam">int $channel
<span
class="initializer"> = Imagick::CHANNEL_DEFAULT ] )
public bool
convolveImage ( <span
class="methodparam">array $kernel
[,
int $channel
<span
class="initializer"> = Imagick::CHANNEL_DEFAULT ] )
public int <span
class="methodname">count ([ <span
class="type">int $mode
=
0 ] )
bool cropImage
( int
$width
, <span
class="type">int $height
, <span
class="methodparam">int $x
, <span
class="methodparam">int $y
)
bool <span
class="methodname">cropThumbnailImage ( <span
class="methodparam">int $width
,
int $height
)
public Imagick current ( <span class="methodparam">void )
public bool
cycleColormapImage ( <span
class="methodparam">int $displace
)
public bool
decipherImage ( <span
class="methodparam">string
$passphrase
)
public Imagick deconstructImages ( <span class="methodparam">void )
public bool
deleteImageArtifact ( <span
class="methodparam">string $artifact
)
public bool
deleteImageProperty ( <span
class="methodparam">string $name
)
public bool
deskewImage ( <span
class="methodparam">float $threshold
)
public bool despeckleImage ( <span class="methodparam">void )
public bool destroy ( <span class="methodparam">void )
public bool
displayImage ( <span
class="methodparam">string
$servername
)
public bool
displayImages ( <span
class="methodparam">string
$servername
)
public bool
distortImage ( <span
class="methodparam">int $method
,
array
$arguments
, <span
class="type">bool $bestfit
)
bool drawImage
( ImagickDraw
$draw
)
public bool
edgeImage ( <span
class="methodparam">float $radius
)
public bool
embossImage ( <span
class="methodparam">float $radius
,
float
$sigma
)
public bool
encipherImage ( <span
class="methodparam">string
$passphrase
)
public bool enhanceImage ( <span class="methodparam">void )
public bool equalizeImage ( <span class="methodparam">void )
public bool
evaluateImage ( <span
class="methodparam">int $op
, <span
class="methodparam">float $constant
[, int
$channel
=
Imagick::CHANNEL_DEFAULT ] )
public array
exportImagePixels ( <span
class="methodparam">int $x
, <span
class="methodparam">int $y
, <span
class="methodparam">int $width
,
int $height
, string
$map
, int
$STORAGE
)
public bool
extentImage ( <span
class="methodparam">int $width
,
int $height
, int $x
,
int $y
)
public bool
filter ( <span
class="type">ImagickKernel $ImagickKernel
[, <span
class="methodparam">int $channel
<span
class="initializer"> = Imagick::CHANNEL_UNDEFINED ] )
public Imagick flattenImages ( <span class="methodparam">void )
public bool flipImage ( <span class="methodparam">void )
public bool
floodFillPaintImage ( <span
class="methodparam">mixed $fill
,
float $fuzz
, mixed
$target
, <span
class="type">int $x
, <span
class="type">int $y
, <span
class="type">bool $invert
[, <span
class="methodparam">int $channel
<span
class="initializer"> = Imagick::CHANNEL_DEFAULT ] )
public bool flopImage ( <span class="methodparam">void )
public bool
forwardFourierTransformimage ( <span
class="methodparam">bool $magnitude
)
public bool
frameImage ( <span
class="methodparam">mixed
$matte_color
, <span
class="type">int $width
, <span
class="methodparam">int $height
,
int
$inner_bevel
, <span
class="type">int $outer_bevel
)
public bool
functionImage ( <span
class="methodparam">int $function
,
array
$arguments
[, <span
class="type">int $channel
=
Imagick::CHANNEL_DEFAULT ] )
public Imagick
fxImage ( <span
class="methodparam">string
$expression
[, <span
class="type">int $channel
=
Imagick::CHANNEL_DEFAULT ] )
public bool
gammaImage ( <span
class="methodparam">float $gamma
[,
int $channel
<span
class="initializer"> = Imagick::CHANNEL_DEFAULT ] )
public bool
gaussianBlurImage ( <span
class="methodparam">float $radius
,
float
$sigma
[, <span
class="type">int $channel
=
Imagick::CHANNEL_DEFAULT ] )
public int <span class="methodname">getColorspace ( <span class="methodparam">void )
public int <span class="methodname">getCompression ( <span class="methodparam">void )
public int <span class="methodname">getCompressionQuality ( <span class="methodparam">void )
public <span class="modifier">static string <span class="methodname">getCopyright ( <span class="methodparam">void )
public string getFilename ( <span class="methodparam">void )
public string getFont ( <span class="methodparam">void )
public string getFormat ( <span class="methodparam">void )
public int <span class="methodname">getGravity ( <span class="methodparam">void )
public <span class="modifier">static string <span class="methodname">getHomeURL ( <span class="methodparam">void )
public Imagick getImage ( <span class="methodparam">void )
int <span class="methodname">getImageAlphaChannel ( <span class="methodparam">void )
public string
getImageArtifact ( <span
class="methodparam">string $artifact
)
public string
getImageAttribute ( <span
class="methodparam">string $key
)
public <span class="type">ImagickPixel <span class="methodname">getImageBackgroundColor ( <span class="methodparam">void )
public string getImageBlob ( <span class="methodparam">void )
public array getImageBluePrimary ( <span class="methodparam">void )
public <span class="type">ImagickPixel <span class="methodname">getImageBorderColor ( <span class="methodparam">void )
public int <span
class="methodname">getImageChannelDepth ( <span
class="methodparam">int $channel
)
public float
getImageChannelDistortion ( <span
class="methodparam">Imagick
$reference
, <span
class="type">int $channel
, <span
class="methodparam">int $metric
)
public float
getImageChannelDistortions ( <span
class="methodparam">Imagick
$reference
, <span
class="type">int $metric
[, <span
class="methodparam">int $channel
<span
class="initializer"> = Imagick::CHANNEL_DEFAULT ] )
public array
getImageChannelExtrema ( <span
class="methodparam">int $channel
)
public array
getImageChannelKurtosis ([ <span
class="methodparam">int $channel
<span
class="initializer"> = Imagick::CHANNEL_DEFAULT ] )
public array
getImageChannelMean ( <span
class="methodparam">int $channel
)
public array
getImageChannelRange ( <span
class="methodparam">int $channel
)
public array getImageChannelStatistics ( <span class="methodparam">void )
public Imagick getImageClipMask ( <span class="methodparam">void )
public <span
class="type">ImagickPixel <span
class="methodname">getImageColormapColor ( <span
class="methodparam">int $index
)
public int <span class="methodname">getImageColors ( <span class="methodparam">void )
public int <span class="methodname">getImageColorspace ( <span class="methodparam">void )
public int <span class="methodname">getImageCompose ( <span class="methodparam">void )
public int <span class="methodname">getImageCompression ( <span class="methodparam">void )
public int <span class="methodname">getImageCompressionQuality ( <span class="methodparam">void )
public int <span class="methodname">getImageDelay ( <span class="methodparam">void )
public int <span class="methodname">getImageDepth ( <span class="methodparam">void )
public int <span class="methodname">getImageDispose ( <span class="methodparam">void )
public float
getImageDistortion ( <span
class="methodparam">MagickWand
$reference
, <span
class="type">int $metric
)
public array getImageExtrema ( <span class="methodparam">void )
public string getImageFilename ( <span class="methodparam">void )
public string getImageFormat ( <span class="methodparam">void )
public float getImageGamma ( <span class="methodparam">void )
public array getImageGeometry ( <span class="methodparam">void )
public int <span class="methodname">getImageGravity ( <span class="methodparam">void )
public array getImageGreenPrimary ( <span class="methodparam">void )
public int <span class="methodname">getImageHeight ( <span class="methodparam">void )
public array getImageHistogram ( <span class="methodparam">void )
public int <span class="methodname">getImageIndex ( <span class="methodparam">void )
public int <span class="methodname">getImageInterlaceScheme ( <span class="methodparam">void )
public int <span class="methodname">getImageInterpolateMethod ( <span class="methodparam">void )
public int <span class="methodname">getImageIterations ( <span class="methodparam">void )
public int <span class="methodname">getImageLength ( <span class="methodparam">void )
public bool getImageMatte ( <span class="methodparam">void )
public <span class="type">ImagickPixel <span class="methodname">getImageMatteColor ( <span class="methodparam">void )
public string getImageMimeType ( <span class="methodparam">void )
public int <span class="methodname">getImageOrientation ( <span class="methodparam">void )
public array getImagePage ( <span class="methodparam">void )
public <span
class="type">ImagickPixel <span
class="methodname">getImagePixelColor ( <span
class="methodparam">int $x
, <span
class="methodparam">int $y
)
public string
getImageProfile ( <span
class="methodparam">string $name
)
public array
getImageProfiles ([ <span
class="methodparam">string $pattern
<span
class="initializer"> = "*" [, <span
class="methodparam">bool
$include_values
= true
]] )
public array
getImageProperties ([ <span
class="methodparam">string $pattern
<span
class="initializer"> = "*" [, <span
class="methodparam">bool
$include_values
= true
]] )
public string
getImageProperty ( <span
class="methodparam">string $name
)
public array getImageRedPrimary ( <span class="methodparam">void )
public Imagick
getImageRegion ( <span
class="methodparam">int $width
,
int $height
, int $x
,
int $y
)
public int <span class="methodname">getImageRenderingIntent ( <span class="methodparam">void )
array <span class="methodname">getImageResolution ( <span class="methodparam">void )
public string getImagesBlob ( <span class="methodparam">void )
public int <span class="methodname">getImageScene ( <span class="methodparam">void )
public string getImageSignature ( <span class="methodparam">void )
public int <span class="methodname">getImageSize ( <span class="methodparam">void )
public int <span class="methodname">getImageTicksPerSecond ( <span class="methodparam">void )
public float getImageTotalInkDensity ( <span class="methodparam">void )
public int <span class="methodname">getImageType ( <span class="methodparam">void )
int <span class="methodname">getImageUnits ( <span class="methodparam">void )
public int <span class="methodname">getImageVirtualPixelMethod ( <span class="methodparam">void )
public array getImageWhitePoint ( <span class="methodparam">void )
public int <span class="methodname">getImageWidth ( <span class="methodparam">void )
public int <span class="methodname">getInterlaceScheme ( <span class="methodparam">void )
public int <span class="methodname">getIteratorIndex ( <span class="methodparam">void )
public int <span class="methodname">getNumberImages ( <span class="methodparam">void )
public string
getOption ( <span
class="methodparam">string $key
)
public <span class="modifier">static string <span class="methodname">getPackageName ( <span class="methodparam">void )
public array getPage ( <span class="methodparam">void )
public <span class="type">ImagickPixelIterator <span class="methodname">getPixelIterator ( <span class="methodparam">void )
public <span
class="type">ImagickPixelIterator <span
class="methodname">getPixelRegionIterator ( <span
class="methodparam">int $x
, <span
class="methodparam">int $y
, <span
class="methodparam">int $columns
,
int $rows
)
public float getPointSize ( <span class="methodparam">void )
public <span class="modifier">static int <span class="methodname">getQuantum ( <span class="methodparam">void )
public <span class="modifier">static array <span class="methodname">getQuantumDepth ( <span class="methodparam">void )
public <span class="modifier">static array <span class="methodname">getQuantumRange ( <span class="methodparam">void )
public <span
class="modifier">static string <span
class="methodname">getRegistry ( <span
class="type">string $key
)
public <span class="modifier">static string <span class="methodname">getReleaseDate ( <span class="methodparam">void )
public <span
class="modifier">static int <span
class="methodname">getResource ( <span
class="type">int $type
)
public <span
class="modifier">static int <span
class="methodname">getResourceLimit ( <span
class="methodparam">int $type
)
public array getSamplingFactors ( <span class="methodparam">void )
public array getSize ( <span class="methodparam">void )
public int <span class="methodname">getSizeOffset ( <span class="methodparam">void )
public <span class="modifier">static array <span class="methodname">getVersion ( <span class="methodparam">void )
public bool
haldClutImage ( <span
class="methodparam">Imagick $clut
[,
int $channel
<span
class="initializer"> = Imagick::CHANNEL_DEFAULT ] )
public bool hasNextImage ( <span class="methodparam">void )
public bool hasPreviousImage ( <span class="methodparam">void )
public <span
class="type">stringfalse <span
class="methodname">identifyFormat ( <span
class="methodparam">string $embedText
)
public array
identifyImage ([ <span
class="methodparam">bool
$appendRawOutput
= false
] )
public bool
implodeImage ( <span
class="methodparam">float $radius
)
public bool
importImagePixels ( <span
class="methodparam">int $x
, <span
class="methodparam">int $y
, <span
class="methodparam">int $width
,
int $height
, string
$map
, int
$storage
, <span
class="type">array $pixels
)
public bool
inverseFourierTransformImage ( <span
class="methodparam">Imagick
$complement
, <span
class="type">bool $magnitude
)
public bool
labelImage ( <span
class="methodparam">string $label
)
public bool
levelImage ( <span
class="methodparam">float $blackPoint
, float
$gamma
, <span
class="type">float $whitePoint
[, <span
class="methodparam">int $channel
<span
class="initializer"> = Imagick::CHANNEL_DEFAULT ] )
public bool
linearStretchImage ( <span
class="methodparam">float $blackPoint
, float
$whitePoint
)
public bool
liquidRescaleImage ( <span
class="methodparam">int $width
,
int $height
, float
$delta_x
, <span
class="type">float $rigidity
)
public <span class="modifier">static array <span class="methodname">listRegistry ( <span class="methodparam">void )
public bool magnifyImage ( <span class="methodparam">void )
public bool
mapImage ( <span
class="methodparam">Imagick $map
,
bool
$dither
)
public bool
matteFloodfillImage ( <span
class="methodparam">float $alpha
,
float $fuzz
, mixed
$bordercolor
, <span
class="type">int $x
, <span
class="type">int $y
)
public bool
medianFilterImage ( <span
class="methodparam">float $radius
)
public Imagick
mergeImageLayers ( <span
class="methodparam">int $layer_method
)
public bool minifyImage ( <span class="methodparam">void )
public bool
modulateImage ( <span
class="methodparam">float $brightness
, float
$saturation
, <span
class="type">float $hue
)
public Imagick
montageImage ( <span
class="methodparam">ImagickDraw $draw
, string
$tile_geometry
, <span
class="type">string $thumbnail_geometry
, <span
class="methodparam">int $mode
, <span
class="methodparam">string $frame
)
public Imagick
morphImages ( <span
class="methodparam">int
$number_frames
)
public bool
morphology ( <span
class="methodparam">int
$morphologyMethod
, <span
class="type">int $iterations
, <span
class="methodparam">ImagickKernel
$ImagickKernel
[, <span
class="type">int $channel
=
Imagick::CHANNEL_DEFAULT ] )
public Imagick mosaicImages ( <span class="methodparam">void )
public bool
motionBlurImage ( <span
class="methodparam">float $radius
,
float
$sigma
, <span
class="type">float $angle
[, <span
class="methodparam">int $channel
<span
class="initializer"> = Imagick::CHANNEL_DEFAULT ] )
public bool
negateImage ( <span
class="methodparam">bool $gray
[,
int $channel
<span
class="initializer"> = Imagick::CHANNEL_DEFAULT ] )
bool newImage
( int $cols
, int $rows
, mixed
$background
[, <span
class="type">string $format
] )
public bool
newPseudoImage ( <span
class="methodparam">int $columns
,
int $rows
,
string
$pseudoString
)
public bool nextImage ( <span class="methodparam">void )
public bool
normalizeImage ([ <span
class="methodparam">int $channel
<span
class="initializer"> = Imagick::CHANNEL_DEFAULT ] )
public bool
oilPaintImage ( <span
class="methodparam">float $radius
)
public bool
opaquePaintImage ( <span
class="methodparam">mixed $target
,
mixed $fill
, float
$fuzz
, <span
class="type">bool $invert
[, <span
class="methodparam">int $channel
<span
class="initializer"> = Imagick::CHANNEL_DEFAULT ] )
public bool optimizeImageLayers ( <span class="methodparam">void )
public bool
orderedPosterizeImage ( <span
class="methodparam">string
$threshold_map
[, <span
class="type">int $channel
=
Imagick::CHANNEL_DEFAULT ] )
public bool
paintFloodfillImage ( <span
class="methodparam">mixed $fill
,
float $fuzz
, mixed
$bordercolor
, <span
class="type">int $x
, <span
class="type">int $y
[, <span
class="type">int $channel
=
Imagick::CHANNEL_DEFAULT ] )
public bool
paintOpaqueImage ( <span
class="methodparam">mixed $target
,
mixed $fill
, float
$fuzz
[, <span
class="type">int $channel
=
Imagick::CHANNEL_DEFAULT ] )
public bool
paintTransparentImage ( <span
class="methodparam">mixed $target
,
float
$alpha
, <span
class="type">float $fuzz
)
public bool
pingImage ( <span
class="methodparam">string $filename
)
public bool
pingImageBlob ( <span
class="methodparam">string $image
)
public bool
pingImageFile ( <span
class="methodparam">resource
$filehandle
[, <span
class="type">string $fileName
] )
public bool
polaroidImage ( <span
class="methodparam">ImagickDraw
$properties
, <span
class="type">float $angle
)
public bool
posterizeImage ( <span
class="methodparam">int $levels
,
bool
$dither
)
public bool
previewImages ( <span
class="methodparam">int $preview
)
public bool previousImage ( <span class="methodparam">void )
public bool
profileImage ( <span
class="methodparam">string $name
,
string
$profile
)
public bool
quantizeImage ( <span
class="methodparam">int $numberColors
, int
$colorspace
, <span
class="type">int $treedepth
, <span
class="methodparam">bool $dither
,
bool
$measureError
)
public bool
quantizeImages ( <span
class="methodparam">int $numberColors
, int
$colorspace
, <span
class="type">int $treedepth
, <span
class="methodparam">bool $dither
,
bool
$measureError
)
public array
queryFontMetrics ( <span
class="methodparam">ImagickDraw
$properties
, <span
class="type">string $text
[, <span
class="methodparam">bool $multiline
] )
public <span
class="modifier">static array <span
class="methodname">queryFonts ([ <span
class="type">string $pattern
=
"*" ] )
public <span
class="modifier">static array <span
class="methodname">queryFormats ([ <span
class="methodparam">string $pattern
<span
class="initializer"> = "*" ] )
public bool
radialBlurImage ( <span
class="methodparam">float $angle
[,
int $channel
<span
class="initializer"> = Imagick::CHANNEL_DEFAULT ] )
public bool
raiseImage ( <span
class="methodparam">int $width
,
int $height
, int $x
,
int $y
,
bool $raise
)
public bool
randomThresholdImage ( <span
class="methodparam">float $low
,
float $high
[, int
$channel
=
Imagick::CHANNEL_DEFAULT ] )
public bool
readImage ( <span
class="methodparam">string $filename
)
bool <span
class="methodname">readImageBlob ( <span
class="methodparam">string $image
[,
string
$filename
] )
public bool
readImageFile ( <span
class="methodparam">resource
$filehandle
[, <span
class="type">string $fileName
=
null
] )
public bool
readImages ( <span
class="methodparam">array $filenames
)
public bool
recolorImage ( <span
class="methodparam">array $matrix
)
public bool
reduceNoiseImage ( <span
class="methodparam">float $radius
)
public bool
remapImage ( <span
class="methodparam">Imagick
$replacement
, <span
class="type">int $DITHER
)
public bool removeImage ( <span class="methodparam">void )
public string
removeImageProfile ( <span
class="methodparam">string $name
)
public bool render ( <span class="methodparam">void )
public bool
resampleImage ( <span
class="methodparam">float
$x_resolution
, <span
class="type">float $y_resolution
, <span
class="methodparam">int $filter
,
float $blur
)
public bool
resetImagePage ( <span
class="methodparam">string $page
)
public bool
resizeImage ( <span
class="methodparam">int $columns
,
int $rows
,
int $filter
, float
$blur
[, <span
class="type">bool $bestfit
=
false
[, <span
class="type">bool $legacy
=
false
]] )
public bool
rollImage ( <span
class="methodparam">int $x
, <span
class="methodparam">int $y
)
public bool
rotateImage ( <span
class="methodparam">mixed $background
, float
$degrees
)
public bool
rotationalBlurImage ( <span
class="methodparam">float $angle
[,
int $channel
<span
class="initializer"> = Imagick::CHANNEL_DEFAULT ] )
public bool
roundCorners ( <span
class="methodparam">float $x_rounding
, float
$y_rounding
[, <span
class="type">float $stroke_width
=
10 [, <span
class="type">float $displace
=
5 [, <span
class="type">float $size_correction
=
-6 ]]] )
public bool
sampleImage ( <span
class="methodparam">int $columns
,
int $rows
)
public bool
scaleImage ( <span
class="methodparam">int $cols
, <span
class="methodparam">int $rows
[,
bool $bestfit
<span
class="initializer"> = false
[, <span
class="methodparam">bool $legacy
<span
class="initializer"> = false
]] )
public bool
segmentImage ( <span
class="methodparam">int $COLORSPACE
,
float
$cluster_threshold
, <span
class="type">float $smooth_threshold
[, <span
class="methodparam">bool $verbose
<span
class="initializer"> = false
] )
public bool
selectiveBlurImage ( <span
class="methodparam">float $radius
,
float
$sigma
, <span
class="type">float $threshold
[, <span
class="methodparam">int $channel
<span
class="initializer"> = Imagick::CHANNEL_DEFAULT ] )
public bool
separateImageChannel ( <span
class="methodparam">int $channel
)
public bool
sepiaToneImage ( <span
class="methodparam">float $threshold
)
public bool
setBackgroundColor ( <span
class="methodparam">mixed $background
)
public bool
setColorspace ( <span
class="methodparam">int $COLORSPACE
)
public bool
setCompression ( <span
class="methodparam">int $compression
)
public bool
setCompressionQuality ( <span
class="methodparam">int $quality
)
public bool
setFilename ( <span
class="methodparam">string $filename
)
public bool setFirstIterator ( <span class="methodparam">void )
public bool
setFont ( <span
class="methodparam">string $font
)
public bool
setFormat ( <span
class="methodparam">string $format
)
public bool
setGravity ( <span
class="methodparam">int $gravity
)
public bool
setImage ( <span
class="methodparam">Imagick $replace
)
public bool
setImageAlphaChannel ( <span
class="methodparam">int $mode
)
public bool
setImageArtifact ( <span
class="methodparam">string $artifact
, string
$value
)
public bool
setImageAttribute ( <span
class="methodparam">string $key
,
string
$value
)
public bool
setImageBackgroundColor ( <span
class="methodparam">mixed $background
)
public bool
setImageBias ( <span
class="methodparam">float $bias
)
public void
setImageBiasQuantum ( <span
class="methodparam">string $bias
)
public bool
setImageBluePrimary ( <span
class="methodparam">float $x
, <span
class="methodparam">float $y
)
public bool
setImageBorderColor ( <span
class="methodparam">mixed $border
)
public bool
setImageChannelDepth ( <span
class="methodparam">int $channel
,
int $depth
)
public bool
setImageClipMask ( <span
class="methodparam">Imagick
$clip_mask
)
public bool
setImageColormapColor ( <span
class="methodparam">int $index
,
ImagickPixel
$color
)
public bool
setImageColorspace ( <span
class="methodparam">int $colorspace
)
public bool
setImageCompose ( <span
class="methodparam">int $compose
)
bool <span
class="methodname">setImageCompression ( <span
class="methodparam">int $compression
)
bool <span
class="methodname">setImageCompressionQuality ( <span
class="methodparam">int $quality
)
public bool
setImageDelay ( <span
class="methodparam">int $delay
)
public bool
setImageDepth ( <span
class="methodparam">int $depth
)
public bool
setImageDispose ( <span
class="methodparam">int $dispose
)
public bool
setImageExtent ( <span
class="methodparam">int $columns
,
int $rows
)
public bool
setImageFilename ( <span
class="methodparam">string $filename
)
bool <span
class="methodname">setImageFormat ( <span
class="methodparam">string $format
)
public bool
setImageGamma ( <span
class="methodparam">float $gamma
)
public bool
setImageGravity ( <span
class="methodparam">int $gravity
)
public bool
setImageGreenPrimary ( <span
class="methodparam">float $x
, <span
class="methodparam">float $y
)
public bool
setImageIndex ( <span
class="methodparam">int $index
)
public bool
setImageInterlaceScheme ( <span
class="methodparam">int
$interlace_scheme
)
public bool
setImageInterpolateMethod ( <span
class="methodparam">int $method
)
public bool
setImageIterations ( <span
class="methodparam">int $iterations
)
public bool
setImageMatte ( <span
class="methodparam">bool $matte
)
public bool
setImageMatteColor ( <span
class="methodparam">mixed $matte
)
public bool
setImageOpacity ( <span
class="methodparam">float $opacity
)
public bool
setImageOrientation ( <span
class="methodparam">int $orientation
)
public bool
setImagePage ( <span
class="methodparam">int $width
,
int $height
, int $x
,
int $y
)
public bool
setImageProfile ( <span
class="methodparam">string $name
,
string
$profile
)
public bool
setImageProperty ( <span
class="methodparam">string $name
,
string
$value
)
public bool
setImageRedPrimary ( <span
class="methodparam">float $x
, <span
class="methodparam">float $y
)
public bool
setImageRenderingIntent ( <span
class="methodparam">int
$rendering_intent
)
public bool
setImageResolution ( <span
class="methodparam">float
$x_resolution
, <span
class="type">float $y_resolution
)
public bool
setImageScene ( <span
class="methodparam">int $scene
)
public bool
setImageTicksPerSecond ( <span
class="methodparam">int
$ticks_per_second
)
public bool
setImageType ( <span
class="methodparam">int $image_type
)
public bool
setImageUnits ( <span
class="methodparam">int $units
)
public bool
setImageVirtualPixelMethod ( <span
class="methodparam">int $method
)
public bool
setImageWhitePoint ( <span
class="methodparam">float $x
, <span
class="methodparam">float $y
)
public bool
setInterlaceScheme ( <span
class="methodparam">int
$interlace_scheme
)
public bool
setIteratorIndex ( <span
class="methodparam">int $index
)
public bool setLastIterator ( <span class="methodparam">void )
public bool
setOption ( <span
class="methodparam">string $key
,
string
$value
)
public bool
setPage ( <span
class="methodparam">int $width
,
int $height
, int $x
,
int $y
)
public bool
setPointSize ( <span
class="methodparam">float $point_size
)
public bool
setProgressMonitor ( <span
class="methodparam">callable
$callback
)
public <span
class="modifier">static bool <span
class="methodname">setRegistry ( <span
class="type">string $key
, <span
class="methodparam">string $value
)
public bool
setResolution ( <span
class="methodparam">float
$x_resolution
, <span
class="type">float $y_resolution
)
public <span
class="modifier">static bool <span
class="methodname">setResourceLimit ( <span
class="methodparam">int $type
, <span
class="methodparam">int $limit
)
public bool
setSamplingFactors ( <span
class="methodparam">array $factors
)
public bool
setSize ( <span
class="methodparam">int $columns
,
int $rows
)
public bool
setSizeOffset ( <span
class="methodparam">int $columns
,
int $rows
,
int $offset
)
public bool
setType ( <span
class="methodparam">int $image_type
)
public bool
shadeImage ( <span
class="methodparam">bool $gray
,
float
$azimuth
, <span
class="type">float $elevation
)
public bool
shadowImage ( <span
class="methodparam">float $opacity
,
float
$sigma
, <span
class="type">int $x
, <span
class="type">int $y
)
public bool
sharpenImage ( <span
class="methodparam">float $radius
,
float
$sigma
[, <span
class="type">int $channel
=
Imagick::CHANNEL_DEFAULT ] )
public bool
shaveImage ( <span
class="methodparam">int $columns
,
int $rows
)
public bool
shearImage ( <span
class="methodparam">mixed $background
, float
$x_shear
, <span
class="type">float $y_shear
)
public bool
sigmoidalContrastImage ( <span
class="methodparam">bool $sharpen
,
float
$alpha
, <span
class="type">float $beta
[, <span
class="methodparam">int $channel
<span
class="initializer"> = Imagick::CHANNEL_DEFAULT ] )
public bool
sketchImage ( <span
class="methodparam">float $radius
,
float
$sigma
, <span
class="type">float $angle
)
public Imagick
smushImages ( <span
class="methodparam">bool $stack
,
int $offset
)
public bool
solarizeImage ( <span
class="methodparam">int $threshold
)
public bool
sparseColorImage ( <span
class="methodparam">int
$SPARSE_METHOD
, <span
class="type">array $arguments
[, <span
class="methodparam">int $channel
<span
class="initializer"> = Imagick::CHANNEL_DEFAULT ] )
public bool
spliceImage ( <span
class="methodparam">int $width
,
int $height
, int $x
,
int $y
)
public bool
spreadImage ( <span
class="methodparam">float $radius
)
public bool
statisticImage ( <span
class="methodparam">int $type
, <span
class="methodparam">int $width
,
int $height
[, int
$channel
=
Imagick::CHANNEL_DEFAULT ] )
public Imagick
steganoImage ( <span
class="methodparam">Imagick
$watermark_wand
, <span
class="type">int $offset
)
public bool
stereoImage ( <span
class="methodparam">Imagick
$offset_wand
)
bool <span class="methodname">stripImage ( <span class="methodparam">void )
public Imagick
subImageMatch ( <span
class="methodparam">Imagick $Imagick
[, array
&$offset
[, <span
class="type">float &$similarity
]] )
bool <span
class="methodname">swirlImage ( <span
class="type">float $degrees
)
Imagick <span
class="methodname">textureImage ( <span
class="type">Imagick $texture_wand
)
public bool
thresholdImage ( <span
class="methodparam">float $threshold
[, int
$channel
=
Imagick::CHANNEL_DEFAULT ] )
public bool
thumbnailImage ( <span
class="methodparam">int $columns
,
int $rows
[, bool
$bestfit
= false
[,
bool $fill
<span
class="initializer"> = false
[, <span
class="methodparam">bool $legacy
<span
class="initializer"> = false
]]] )
public bool
tintImage ( <span
class="methodparam">mixed $tint
,
mixed
$opacity
[, <span
class="type">bool $legacy
=
false
] )
public string __toString ( <span class="methodparam">void )
public Imagick
transformImage ( <span
class="methodparam">string $crop
,
string
$geometry
)
public bool
transformImageColorspace ( <span
class="methodparam">int $colorspace
)
public bool
transparentPaintImage ( <span
class="methodparam">mixed $target
,
float
$alpha
, <span
class="type">float $fuzz
, <span
class="methodparam">bool $invert
)
public bool transposeImage ( <span class="methodparam">void )
public bool transverseImage ( <span class="methodparam">void )
public bool
trimImage ( <span
class="methodparam">float $fuzz
)
public bool uniqueImageColors ( <span class="methodparam">void )
public bool
unsharpMaskImage ( <span
class="methodparam">float $radius
,
float
$sigma
, <span
class="type">float $amount
, <span
class="methodparam">float $threshold
[, int
$channel
=
Imagick::CHANNEL_DEFAULT ] )
public bool valid ( <span class="methodparam">void )
public bool
vignetteImage ( <span
class="methodparam">float $blackPoint
, float
$whitePoint
, <span
class="type">int $x
, <span
class="type">int $y
)
public bool
waveImage ( <span
class="methodparam">float $amplitude
, float
$length
)
public bool
whiteThresholdImage ( <span
class="methodparam">mixed $threshold
)
bool <span
class="methodname">writeImage ([ <span
class="type">string $filename
=
NULL ] )
public bool
writeImageFile ( <span
class="methodparam">resource
$filehandle
[, <span
class="type">string $format
] )
public bool
writeImages ( <span
class="methodparam">string $filename
, bool
$adjoin
)
public bool
writeImagesFile ( <span
class="methodparam">resource
$filehandle
[, <span
class="type">string $format
] )
}
Image methods and global methods
The Imagick class has the ability to hold and operate on multiple images simultaneously. This is achieved through an internal stack. There is always an internal pointer that points at the current image. Some functions operate on all images in the Imagick class, but most operate only on the current image in the internal stack. As a convention, method names can contain the word Image to denote they affect only the current image in the stack.
Class Methods
Because there are so many methods, here is a handy list of methods, somewhat reduced to their general purpose:
Image effects | Get methods | Set methods | Read/write images | Other |
---|---|---|---|---|
Imagick::adaptiveBlurImage | Imagick::getCompression | Imagick::setBackgroundColor | Imagick::__construct | Imagick::clear |
Imagick::adaptiveResizeImage | Imagick::getFilename | Imagick::setCompressionQuality | Imagick::addImage | Imagick::clone |
Imagick::adaptiveSharpenImage | Imagick::getFormat | Imagick::setCompression | Imagick::appendImages | Imagick::current |
Imagick::adaptiveThresholdImage | Imagick::getImageBackgroundColor | Imagick::setFilename | Imagick::getFilename | Imagick::destroy |
Imagick::addNoiseImage | Imagick::getImageBlob | Imagick::getImagesBlob | Imagick::setFormat | Imagick::getFormat |
Imagick::affinetransformimage | Imagick::getImageBluePrimary | Imagick::setImageBackgroundColor | Imagick::getImageFilename | Imagick::getHomeURL |
Imagick::annotateImage | Imagick::getImageBorderColor | Imagick::setFirstIterator | Imagick::getImageFormat | Imagick::commentImage |
Imagick::averageImages | Imagick::getImageChannelDepth | Imagick::setImageBias | Imagick::getImage | Imagick::getNumberImages |
Imagick::blackThresholdImage | Imagick::getImageChannelDistortion | Imagick::setImageBluePrimary | Imagick::setImageFilename | Imagick::getReleaseDate |
Imagick::blurImage | Imagick::getImageChannelExtrema | Imagick::setImageBorderColor | Imagick::setImageFormat | Imagick::getVersion |
Imagick::borderImage | Imagick::getImageChannelMean | Imagick::setImageChannelDepth | Imagick::readImageFile | Imagick::hasNextImage |
Imagick::charcoalImage | Imagick::getImageChannelStatistics | Imagick::setImageColormapColor | Imagick::readImage | Imagick::hasPreviousImage |
Imagick::chopImage | Imagick::getImageColormapColor | Imagick::setImageColorSpace | Imagick::writeImages | Imagick::labelImage |
Imagick::clipImage | Imagick::getImageColorspace | Imagick::setImageCompose | Imagick::writeImage | Imagick::newImage |
Imagick::clipPathImage | Imagick::getImageColors | Imagick::setImageCompression | Imagick::newPseudoImage | |
Imagick::coalesceImages | Imagick::getImageCompose | Imagick::setImageDelay | Imagick::nextImage | |
Imagick::colorFloodFillImage | Imagick::getImageDelay | Imagick::setImageDepth | Imagick::pingImageBlob | |
Imagick::colorizeImage | Imagick::getImageDepth | Imagick::setImageDispose | Imagick::pingImageFile | |
Imagick::combineImages | Imagick::getImageDispose | Imagick::setImageDispose | Imagick::pingImage | |
Imagick::compareImageChannels | Imagick::getImageDistortion | Imagick::setImageExtent | Imagick::previousImage | |
Imagick::compareImageLayers | Imagick::getImageExtrema | Imagick::setImageFilename | Imagick::profileImage | |
Imagick::compositeImage | Imagick::getImageFilename | Imagick::setImageFormat | Imagick::queryFormats | |
Imagick::contrastImage | Imagick::getImageFormat | Imagick::setImageGamma | Imagick::removeImageProfile | |
Imagick::contrastStretchImage | Imagick::getImageGamma | Imagick::setImageGreenPrimary | Imagick::removeImage | |
Imagick::convolveImage | Imagick::getImageGeometry | Imagick::setImageIndex | Imagick::setFirstIterator | |
Imagick::cropImage | Imagick::getImageGreenPrimary | Imagick::setImageInterpolateMethod | Imagick::setImageIndex | |
Imagick::cycleColormapImage | Imagick::getImageHeight | Imagick::setImageIterations | Imagick::valid | |
Imagick::deconstructImages | Imagick::getImageHistogram | Imagick::setImageMatteColor | Imagick::getCopyright | |
Imagick::drawImage | Imagick::getImageIndex | Imagick::setImageMatte | ||
Imagick::edgeImage | Imagick::getImageInterlaceScheme | Imagick::setImagePage | ||
Imagick::embossImage | Imagick::getImageInterpolateMethod | Imagick::setImageProfile | ||
Imagick::enhanceImage | Imagick::getImageIterations | Imagick::setImageProperty | ||
Imagick::equalizeImage | Imagick::getImageMatteColor | Imagick::setImageRedPrimary | ||
Imagick::evaluateImage | Imagick::getImageMatte | Imagick::setImageRenderingIntent | ||
Imagick::flattenImages | Imagick::getImagePage | Imagick::setImageResolution | ||
Imagick::flipImage | Imagick::getImagePixelColor | Imagick::setImageScene | ||
Imagick::flopImage | Imagick::getImageProfile | Imagick::setImageTicksPerSecond | ||
Imagick::getImageProperty | Imagick::setImageType | |||
Imagick::fxImage | Imagick::getImageRedPrimary | Imagick::setImageUnits | ||
Imagick::gammaImage | Imagick::getImageRegion | Imagick::setImageVirtualPixelMethod | ||
Imagick::gaussianBlurImage | Imagick::getImageRenderingIntent | Imagick::setImageWhitepoint | ||
Imagick::implodeImage | Imagick::getImageResolution | Imagick::setInterlaceScheme | ||
Imagick::levelImage | Imagick::getImageScene | Imagick::setOption | ||
Imagick::linearStretchImage | Imagick::getImageSignature | Imagick::setPage | ||
Imagick::magnifyImage | Imagick::getImageTicksPerSecond | Imagick::setResolution | ||
Imagick::matteFloodFillImage | Imagick::getImageTotalInkDensity | Imagick::setResourceLimit | ||
Imagick::medianFilterImage | Imagick::getImageType | Imagick::setSamplingFactors | ||
Imagick::minifyImage | Imagick::getImageUnits | Imagick::setSizeOffset | ||
Imagick::modulateImage | Imagick::getImageVirtualPixelMethod | Imagick::setSize | ||
Imagick::montageImage | Imagick::getImageWhitepoint | Imagick::setType | ||
Imagick::morphImages | Imagick::getImageWidth | |||
Imagick::mosaicImages | Imagick::getImage | |||
Imagick::motionBlurImage | Imagick::getInterlaceScheme | |||
Imagick::negateImage | Imagick::getNumberImages | |||
Imagick::normalizeImage | Imagick::getOption | |||
Imagick::oilPaintImage | Imagick::getPackageName | |||
Imagick::optimizeImageLayers | Imagick::getPage | |||
Imagick::paintOpaqueImage | Imagick::getPixelIterator | |||
Imagick::paintTransparentImage | Imagick::getPixelRegionIterator | |||
Imagick::posterizeImage | Imagick::getQuantumDepth | |||
Imagick::radialBlurImage | Imagick::getQuantumRange | |||
Imagick::raiseImage | Imagick::getResourceLimit | |||
Imagick::randomThresholdImage | Imagick::getResource | |||
Imagick::reduceNoiseImage | Imagick::getSamplingFactors | |||
Imagick::render | Imagick::getSizeOffset | |||
Imagick::resampleImage | Imagick::getSize | |||
Imagick::resizeImage | Imagick::identifyImage | |||
Imagick::rollImage | Imagick::getImageSize | |||
Imagick::rotateImage | ||||
Imagick::sampleImage | ||||
Imagick::scaleImage | ||||
Imagick::separateImageChannel | ||||
Imagick::sepiaToneImage | ||||
Imagick::shadeImage | ||||
Imagick::shadowImage | ||||
Imagick::sharpenImage | ||||
Imagick::shaveImage | ||||
Imagick::shearImage | ||||
Imagick::sigmoidalContrastImage | ||||
Imagick::sketchImage | ||||
Imagick::solarizeImage | ||||
Imagick::spliceImage | ||||
Imagick::spreadImage | ||||
Imagick::steganoImage | ||||
Imagick::stereoImage | ||||
Imagick::stripImage | ||||
Imagick::swirlImage | ||||
Imagick::textureImage | ||||
Imagick::thresholdImage | ||||
Imagick::thumbnailImage | ||||
Imagick::tintImage | ||||
Imagick::transverseImage | ||||
Imagick::trimImage | ||||
Imagick::uniqueImageColors | ||||
Imagick::unsharpMaskImage | ||||
Imagick::vignetteImage | ||||
Imagick::waveImage | ||||
Imagick::whiteThresholdImage |
Imagick::adaptiveBlurImage
Adds adaptive blur filter to image
说明
public bool
Imagick::adaptiveBlurImage ( <span
class="methodparam">float $radius
,
float
$sigma
[, <span
class="type">int $channel
=
Imagick::CHANNEL_DEFAULT ] )
Adds an adaptive blur filter to image. The intensity of an adaptive blur depends is dramatically decreased at edge of the image, whereas a standard blur is uniform across the image. 此方法在Imagick基于ImageMagick 6.2.9以上版本编译时可用。
参数
radius
The radius of the Gaussian, in pixels, not counting the center pixel.
Provide a value of 0 and the radius will be chosen automagically.
sigma
The standard deviation of the Gaussian, in pixels.
channel
Provide any channel constant that is valid for your channel mode. To
apply to more than one channel, combine
channel constants
using bitwise operators. 缺省为Imagick::CHANNEL_DEFAULT
. 参考此
通道常数列表
返回值
成功时返回 true
。
错误/异常
错误时抛出 ImagickException。
范例
示例 #1 Using <span class="function">Imagick::adaptiveBlurImage:
Adaptively blur an image, then display to the browser.
<?php
header('Content-type: image/jpeg');
$image = new Imagick('test.jpg');
$image->adaptiveBlurImage(5,3);
echo $image;
?>
以上例程的输出类似于:
参见
- Imagick::blurImage
- Imagick::motionBlurImage
- Imagick::radialBlurImage
Imagick::adaptiveResizeImage
Adaptively resize image with data dependent triangulation
说明
public bool
Imagick::adaptiveResizeImage ( <span
class="methodparam">int $columns
,
int $rows
[, bool
$bestfit
= false
[,
bool $legacy
<span
class="initializer"> = false
]] )
Adaptively resize image with data-dependent triangulation. Avoids blurring across sharp color changes. Most useful when used to shrink images slightly to a slightly smaller "web size"; may not look good when a full-sized image is adaptively resized to a thumbnail. 此方法在Imagick基于ImageMagick 6.2.9以上版本编译时可用。
Note: 参数
bestfit
的特性在 Imagick 3.0.0 中已改变。在此版本以前,当目标尺寸设为 400x400 时,原尺寸为 200x150 的图像将不会被改变。自 Imagick 3.0.0 起,源图像将会被放大到 400x300 因为这将更好的适合目标尺寸。当使用参数bestfit
时,必须同时给出宽度和高度。
参数
columns
The number of columns in the scaled image.
rows
The number of rows in the scaled image.
bestfit
Whether to fit the image inside a bounding box.
返回值
成功时返回 true
。
错误/异常
错误时抛出 ImagickException。
更新日志
版本 | 说明 |
---|---|
PECL imagick 2.1.0 | Added optional fit parameter. |
PECL imagick 2.1.0 | This method now supports proportional scaling. Pass zero as either parameter for proportional scaling. |
范例
示例 #1 Using <span class="function">Imagick::adaptiveResizeImage
Resize an image to a standard size for the web. This method works best when resizing to a size only slightly smaller than the previous image size.
<?php
header('Content-type: image/jpeg');
$image = new Imagick('image.jpg');
$image->adaptiveResizeImage(1024,768);
echo $image;
?>
参见
- Imagick::chopImage
- Imagick::cropImage
- Imagick::magnifyImage
- Imagick::minifyImage
- Imagick::resizeImage
- Imagick::scaleImage
- Imagick::shaveImage
- Imagick::thumbnailImage
- Imagick::trimImage
Imagick::adaptiveSharpenImage
Adaptively sharpen the image
说明
public bool
Imagick::adaptiveSharpenImage ( <span
class="methodparam">float $radius
,
float
$sigma
[, <span
class="type">int $channel
=
Imagick::CHANNEL_DEFAULT ] )
Adaptively sharpen the image by sharpening more intensely near image edges and less intensely far from edges. 此方法在Imagick基于ImageMagick 6.2.9以上版本编译时可用。
参数
radius
The radius of the Gaussian, in pixels, not counting the center pixel.
Use 0 for auto-select.
sigma
The standard deviation of the Gaussian, in pixels.
channel
Provide any channel constant that is valid for your channel mode. To
apply to more than one channel, combine
channel constants
using bitwise operators. 缺省为Imagick::CHANNEL_DEFAULT
. 参考此
通道常数列表
返回值
成功时返回 true
。
范例
示例 #1 A Imagick::adaptiveSharpenImage example
Adaptively sharpen the image with radius 2 and sigma 1.
<?php
try {
$image = new Imagick('image.png');
$image->adaptiveSharpenImage(2,1);
} catch(ImagickException $e) {
echo 'Error: ' , $e->getMessage();
die();
}
header('Content-type: image/png');
echo $image;
?>
参见
- Imagick::sharpenImage
Imagick::adaptiveThresholdImage
Selects a threshold for each pixel based on a range of intensity
说明
public bool
Imagick::adaptiveThresholdImage ( <span
class="methodparam">int $width
,
int $height
, int
$offset
)
Selects an individual threshold for each pixel based on the range of intensity values in its local neighborhood. This allows for thresholding of an image whose global intensity histogram doesn't contain distinctive peaks.
参数
width
Width of the local neighborhood.
height
Height of the local neighborhood.
offset
The mean offset
返回值
成功时返回 true
。
范例
示例 #1 <span class="function">Imagick::adaptiveThresholdImage
<?php
function adaptiveThresholdImage($imagePath, $width, $height, $adaptiveOffset) {
$imagick = new \Imagick(realpath($imagePath));
$adaptiveOffsetQuantum = intval($adaptiveOffset * \Imagick::getQuantum());
$imagick->adaptiveThresholdImage($width, $height, $adaptiveOffsetQuantum);
header("Content-Type: image/jpg");
echo $imagick->getImageBlob();
}
?>
Imagick::addImage
Adds new image to Imagick object image list
说明
public bool
Imagick::addImage ( <span
class="methodparam">Imagick $source
)
Adds new image to Imagick object from the current position of the source object. After the operation iterator position is moved at the end of the list.
参数
source
The source Imagick object
返回值
成功时返回 true
。
错误/异常
错误时抛出 ImagickException。
Imagick::addNoiseImage
Adds random noise to the image
说明
public bool
Imagick::addNoiseImage ( <span
class="methodparam">int $noise_type
[, int
$channel
=
Imagick::CHANNEL_DEFAULT ] )
Adds random noise to the image.
参数
noise_type
The type of the noise. Refer to this list of
noise constants.
channel
Provide any channel constant that is valid for your channel mode. To
apply to more than one channel, combine
channel constants
using bitwise operators. 缺省为Imagick::CHANNEL_DEFAULT
. 参考此
通道常数列表
返回值
成功时返回 true
。
范例
示例 #1 Imagick::addNoiseImage
<?php
function addNoiseImage($noiseType, $imagePath, $channel) {
$imagick = new \Imagick(realpath($imagePath));
$imagick->addNoiseImage($noiseType, $channel);
header("Content-Type: image/jpg");
echo $imagick->getImageBlob();
}
?>
Imagick::affineTransformImage
Transforms an image
说明
public bool
Imagick::affineTransformImage ( <span
class="methodparam">ImagickDraw
$matrix
)
Transforms an image as dictated by the affine matrix.
参数
matrix
The affine matrix
返回值
成功时返回 true
。
范例
示例 #1 Imagick::affineTransformImage
<?php
function affineTransformImage($imagePath) {
$imagick = new \Imagick(realpath($imagePath));
$draw = new \ImagickDraw();
$angle = deg2rad(40);
$affineRotate = array(
"sx" => cos($angle), "sy" => cos($angle),
"rx" => sin($angle), "ry" => -sin($angle),
"tx" => 0, "ty" => 0,
);
$draw->affine($affineRotate);
$imagick->affineTransformImage($draw);
header("Content-Type: image/jpg");
echo $imagick->getImageBlob();
}
?>
Imagick::animateImages
Animates an image or images
说明
public bool
Imagick::animateImages ( <span
class="methodparam">string $x_server
)
This method animates the image onto a local or remote X server. This method is not available on Windows. 此方法在Imagick基于ImageMagick 6.3.6以上版本编译时可用。
参数
x_server
X server address
返回值
成功时返回 true
。
参见
- Imagick::displayImage
Imagick::annotateImage
Annotates an image with text
说明
public bool
Imagick::annotateImage ( <span
class="methodparam">ImagickDraw
$draw_settings
, <span
class="type">float $x
, <span
class="type">float $y
, <span
class="type">float $angle
, <span
class="methodparam">string $text
)
Annotates an image with text.
参数
draw_settings
The ImagickDraw object that contains settings for drawing the text
x
Horizontal offset in pixels to the left of text
y
Vertical offset in pixels to the baseline of text
angle
The angle at which to write the text
text
The string to draw
返回值
成功时返回 true
。
范例
示例 #1 Using Imagick::annotateImage:
Annotate text on an empty image
<?php
/* Create some objects */
$image = new Imagick();
$draw = new ImagickDraw();
$pixel = new ImagickPixel( 'gray' );
/* New image */
$image->newImage(800, 75, $pixel);
/* Black text */
$draw->setFillColor('black');
/* Font properties */
$draw->setFont('Bookman-DemiItalic');
$draw->setFontSize( 30 );
/* Create text */
$image->annotateImage($draw, 10, 45, 0, 'The quick brown fox jumps over the lazy dog');
/* Give image a format */
$image->setImageFormat('png');
/* Output the image with headers */
header('Content-type: image/png');
echo $image;
?>
参见
- ImagickDraw::annotation
- ImagickDraw::setFont
Imagick::appendImages
Append a set of images
说明
public Imagick
Imagick::appendImages ( <span
class="methodparam">bool $stack
)
Append a set of images into one larger image.
参数
stack
Whether to stack the images vertically. By default (or if false
is
specified) images are stacked left-to-right. If stack
is true
,
images are stacked top-to-bottom.
返回值
Returns Imagick instance on success.
错误/异常
错误时抛出 ImagickException。
范例
示例 #1 Imagick::appendImages example
<?php
/* Create new imagick object */
$im = new Imagick();
/* create red, green and blue images */
$im->newImage(100, 50, "red");
$im->newImage(100, 50, "green");
$im->newImage(100, 50, "blue");
/* Append the images into one */
$im->resetIterator();
$combined = $im->appendImages(true);
/* Output the image */
$combined->setImageFormat("png");
header("Content-Type: image/png");
echo $combined;
?>
以上例程的输出类似于:
Imagick::autoLevelImage
Description
说明
public bool
Imagick::autoLevelImage ([ <span
class="methodparam">int $channel
<span
class="initializer"> = Imagick::CHANNEL_DEFAULT ] )
Adjusts the levels of a particular image channel by scaling the minimum and maximum values to the full quantum range.
参数
channel
Which channel should the auto-levelling should be done on.
返回值
成功时返回 true
。
范例
示例 #1 Imagick::autoLevelImage
<?php
function autoLevelImage($imagePath) {
$imagick = new \Imagick(realpath($imagePath));
$imagick->autoLevelImage();
header("Content-Type: image/jpg");
echo $imagick->getImageBlob();
}
?>
Imagick::averageImages
Average a set of images
Warning
此函数在 Imagick 3.4.4 中被 废弃,强烈建议不要应用此函数。
说明
public Imagick Imagick::averageImages ( <span class="methodparam">void )
Average a set of images.
返回值
Returns a new Imagick object on success.
错误/异常
错误时抛出 ImagickException。
Imagick::blackThresholdImage
Forces all pixels below the threshold into black
说明
public bool
Imagick::blackThresholdImage ( <span
class="methodparam">mixed $threshold
)
Is like Imagick::thresholdImage() but forces all pixels below the threshold into black while leaving all pixels above the threshold unchanged.
参数
threshold
The threshold below which everything turns black
返回值
成功时返回 true
。
更新日志
版本 | 说明 |
---|---|
PECL imagick 2.1.0 | Now allows a string representing the color as a parameter. Previous versions allow only an ImagickPixel object. |
范例
示例 #1 Imagick::blackThresholdImage
<?php
function blackThresholdImage($imagePath, $thresholdColor) {
$imagick = new \Imagick(realpath($imagePath));
$imagick->blackthresholdimage($thresholdColor);
header("Content-Type: image/jpg");
echo $imagick->getImageBlob();
}
?>
Imagick::blueShiftImage
Description
说明
public bool
Imagick::blueShiftImage ([ <span
class="methodparam">float $factor
<span
class="initializer"> = 1.5 ] )
Mutes the colors of the image to simulate a scene at nighttime in the moonlight.
参数
factor
返回值
成功时返回 true
。
范例
示例 #1 Imagick::blueShiftImage
<?php
function blueShiftImage($imagePath, $blueShift) {
$imagick = new \Imagick(realpath($imagePath));
$imagick->blueShiftImage($blueShift);
header("Content-Type: image/jpg");
echo $imagick->getImageBlob();
}
?>
Imagick::blurImage
Adds blur filter to image
说明
public bool
Imagick::blurImage ( <span
class="methodparam">float $radius
,
float
$sigma
[, <span
class="type">int $channel
] )
Adds blur filter to image. Optional third parameter to blur a specific channel.
参数
radius
Blur radius
sigma
Standard deviation
channel
The
Channeltype
constant. When not supplied, all channels are blurred.
返回值
成功时返回 true
。
错误/异常
错误时抛出 ImagickException。
范例
示例 #1 Using Imagick::blurImage:
Blur an image, then display to the browser.
<?php
header('Content-type: image/jpeg');
$image = new Imagick('test.jpg');
$image->blurImage(5,3);
echo $image;
?>
参见
- Imagick::adaptiveBlurImage
- Imagick::motionBlurImage
- Imagick::radialBlurImage
Imagick::borderImage
Surrounds the image with a border
说明
public bool
Imagick::borderImage ( <span
class="methodparam">mixed
$bordercolor
, <span
class="type">int $width
, <span
class="methodparam">int $height
)
Surrounds the image with a border of the color defined by the bordercolor ImagickPixel object.
参数
bordercolor
ImagickPixel object or a string containing the border color
width
Border width
height
Border height
返回值
成功时返回 true
。
更新日志
版本 | 说明 |
---|---|
PECL imagick 2.1.0 | Now allows a string representing the color as the first parameter. Previous versions allow only an ImagickPixel object. |
范例
示例 #1 Imagick::borderImage
<?php
function borderImage($imagePath, $color, $width, $height) {
$imagick = new \Imagick(realpath($imagePath));
$imagick->borderImage($color, $width, $height);
header("Content-Type: image/jpg");
echo $imagick->getImageBlob();
}
?>
Imagick::brightnessContrastImage
Description
说明
public bool
Imagick::brightnessContrastImage ( <span
class="methodparam">float $brightness
, float
$contrast
[, <span
class="type">int $channel
=
Imagick::CHANNEL_DEFAULT ] )
Change the brightness and/or contrast of an image. It converts the brightness and contrast parameters into slope and intercept and calls a polynomical function to apply to the image.
参数
brightness
contrast
channel
返回值
成功时返回 true
。
范例
示例 #1 <span class="function">Imagick::brightnessContrastImage
<?php
function brightnessContrastImage($imagePath, $brightness, $contrast, $channel) {
$imagick = new \Imagick(realpath($imagePath));
$imagick->brightnessContrastImage($brightness, $contrast, $channel);
header("Content-Type: image/jpg");
echo $imagick->getImageBlob();
}
?>
Imagick::charcoalImage
Simulates a charcoal drawing
说明
public bool
Imagick::charcoalImage ( <span
class="methodparam">float $radius
,
float
$sigma
)
Simulates a charcoal drawing.
参数
radius
The radius of the Gaussian, in pixels, not counting the center pixel
sigma
The standard deviation of the Gaussian, in pixels
返回值
成功时返回 true
。
范例
示例 #1 Imagick::charcoalImage
<?php
function charcoalImage($imagePath, $radius, $sigma) {
$imagick = new \Imagick(realpath($imagePath));
$imagick->charcoalImage($radius, $sigma);
header("Content-Type: image/jpg");
echo $imagick->getImageBlob();
}
?>
Imagick::chopImage
Removes a region of an image and trims
说明
public bool
Imagick::chopImage ( <span
class="methodparam">int $width
,
int $height
, int $x
,
int $y
)
Removes a region of an image and collapses the image to occupy the removed portion.
参数
width
Width of the chopped area
height
Height of the chopped area
x
X origo of the chopped area
y
Y origo of the chopped area
返回值
成功时返回 true
。
错误/异常
错误时抛出 ImagickException。
范例
示例 #1 Using Imagick::chopImage:
Example of using Imagick::chopImage
<?php
/* Create some objects */
$image = new Imagick();
$pixel = new ImagickPixel( 'gray' );
/* New image */
$image->newImage(400, 200, $pixel);
/* Chop image */
$image->chopImage(200, 200, 0, 0);
/* Give image a format */
$image->setImageFormat('png');
/* Output the image with headers */
header('Content-type: image/png');
echo $image;
?>
参见
- Imagick::cropImage
Imagick::clampImage
Description
说明
public bool
Imagick::clampImage ([ <span
class="methodparam">int $channel
<span
class="initializer"> = Imagick::CHANNEL_DEFAULT ] )
Restricts the color range from 0 to the quantum depth.
参数
channel
返回值
成功时返回 true
, 或者在失败时返回 false
。
Imagick::clear
Clears all resources associated to Imagick object
说明
public bool Imagick::clear ( <span class="methodparam">void )
Clears all resources associated to Imagick object
返回值
成功时返回 true
。
Imagick::clipImage
Clips along the first path from the 8BIM profile
说明
public bool Imagick::clipImage ( <span class="methodparam">void )
Clips along the first path from the 8BIM profile, if present.
返回值
成功时返回 true
。
错误/异常
错误时抛出 ImagickException。
Imagick::clipImagePath
Description
说明
public void
Imagick::clipImagePath ( <span
class="methodparam">string $pathname
, string
$inside
)
Clips along the named paths from the 8BIM profile, if present. Later operations take effect inside the path. Id may be a number if preceded with #, to work on a numbered path, e.g., "#1" to use the first path.
Warning
本函数还未编写文档,仅有参数列表。
参数
pathname
inside
返回值
Imagick::clipPathImage
Clips along the named paths from the 8BIM profile
说明
public bool
Imagick::clipPathImage ( <span
class="methodparam">string $pathname
, bool
$inside
)
Clips along the named paths from the 8BIM profile, if present. Later operations take effect inside the path. It may be a number if preceded with #, to work on a numbered path, e.g., "#1" to use the first path.
参数
pathname
The name of the path
inside
If true
later operations take effect inside clipping path.
Otherwise later operations take effect outside clipping path.
返回值
成功时返回 true
。
错误/异常
错误时抛出 ImagickException。
Imagick::clone
Makes an exact copy of the Imagick object
说明
public Imagick Imagick::clone ( <span class="methodparam">void )
Makes an exact copy of the Imagick object.
Warning
This function has been DEPRECATED as of imagick 3.1.0 in favour of using the clone keyword.
范例
示例 #1 Imagick object cloning in different versions of imagick
<?php
// Cloning an Imagick object in imagick 2.x and 3.0:
$newImage = $image->clone();
// Cloning an Imagick object from 3.1.0 on:
$newImage = clone $image;
?>
返回值
A copy of the Imagick object is returned.
更新日志
版本 | 说明 |
---|---|
PECL imagick 3.1.0 | The method was deprecated in favour of the clone keyword. |
Imagick::clutImage
Replaces colors in the image
说明
public bool
Imagick::clutImage ( <span
class="methodparam">Imagick
$lookup_table
[, <span
class="type">int $channel
=
Imagick::CHANNEL_DEFAULT ] )
Replaces colors in the image from a color lookup table. Optional second parameter to replace colors in a specific channel. 此方法在Imagick基于ImageMagick 6.3.6以上版本编译时可用。
参数
lookup_table
Imagick object containing the color lookup table
channel
The
Channeltype
constant. When not supplied, default channels are replaced.
返回值
成功时返回 true
。
范例
示例 #1 Using Imagick::clutImage:
Replace colors in the image from a color lookup table.
<?php
$image = new Imagick('test.jpg');
$clut = new Imagick();
$clut->newImage(1, 1, new ImagickPixel('black'));
$image->clutImage($clut);
$image->writeImage('test_out.jpg');
?>
参见
- Imagick::adaptiveBlurImage
- Imagick::motionBlurImage
- Imagick::radialBlurImage
Imagick::coalesceImages
Composites a set of images
说明
public Imagick Imagick::coalesceImages ( <span class="methodparam">void )
Composites a set of images while respecting any page offsets and disposal methods. GIF, MIFF, and MNG animation sequences typically start with an image background and each subsequent image varies in size and offset. Returns a new Imagick object where each image in the sequence is the same size as the first and composited with the next image in the sequence.
返回值
Returns a new Imagick object on success.
错误/异常
错误时抛出 ImagickException。
Imagick::colorFloodfillImage
Changes the color value of any pixel that matches target
Warning
此函数在 Imagick 3.4.4 中被 废弃,强烈建议不要应用此函数。
说明
public bool
Imagick::colorFloodfillImage ( <span
class="methodparam">mixed $fill
,
float $fuzz
, mixed
$bordercolor
, <span
class="type">int $x
, <span
class="type">int $y
)
Changes the color value of any pixel that matches target and is an immediate neighbor.
参数
fill
ImagickPixel object containing the fill color
fuzz
The amount of fuzz. For example, set fuzz to 10 and the color red at
intensities of 100 and 102 respectively are now interpreted as the same
color for the purposes of the floodfill.
bordercolor
ImagickPixel object containing the border color
x
X start position of the floodfill
y
Y start position of the floodfill
返回值
成功时返回 true
。
错误/异常
错误时抛出 ImagickException。
更新日志
版本 | 说明 |
---|---|
PECL imagick 2.1.0 | Now allows a string representing the color as first and third parameter. Previous versions allow only an ImagickPixel object. |
Imagick::colorizeImage
Blends the fill color with the image
说明
public bool
Imagick::colorizeImage ( <span
class="methodparam">mixed $colorize
,
mixed
$opacity
[, <span
class="type">bool $legacy
=
false
] )
Blends the fill color with each pixel in the image.
参数
colorize
ImagickPixel object or a string containing the colorize color
opacity
ImagickPixel object or an float containing the opacity value. 1.0 is
fully opaque and 0.0 is fully transparent.
返回值
成功时返回 true
。
错误/异常
错误时抛出 ImagickException。
更新日志
版本 | 说明 |
---|---|
PECL imagick 2.1.0 | Now allows a string representing the color as the first parameter and a float representing the opacity value as the second parameter. Previous versions allow only an ImagickPixel objects. |
范例
示例 #1 Imagick::colorizeImage
<?php
function colorizeImage($imagePath, $color, $opacity) {
$imagick = new \Imagick(realpath($imagePath));
$opacity = $opacity / 255.0;
$opacityColor = new \ImagickPixel("rgba(0, 0, 0, $opacity)");
$imagick->colorizeImage($color, $opacityColor);
header("Content-Type: image/jpg");
echo $imagick->getImageBlob();
}
?>
Imagick::colorMatrixImage
Description
说明
public bool
Imagick::colorMatrixImage ( <span
class="methodparam">array $color_matrix
<span
class="initializer"> = Imagick::CHANNEL_DEFAULT )
Apply color transformation to an image. The method permits saturation changes, hue rotation, luminance to alpha, and various other effects. Although variable-sized transformation matrices can be used, typically one uses a 5x5 matrix for an RGBA image and a 6x6 for CMYKA (or RGBA with offsets). The matrix is similar to those used by Adobe Flash except offsets are in column 6 rather than 5 (in support of CMYKA images) and offsets are normalized (divide Flash offset by 255)
参数
color_matrix
返回值
成功时返回 true
。
范例
示例 #1 Imagick::colorMatrixImage
<?php
function colorMatrixImage($imagePath, $colorMatrix) {
$imagick = new \Imagick(realpath($imagePath));
$imagick->setImageOpacity(1);
//A color matrix should look like:
// $colorMatrix = [
// 1.5, 0.0, 0.0, 0.0, 0.0, -0.157,
// 0.0, 1.0, 0.5, 0.0, 0.0, -0.157,
// 0.0, 0.0, 1.5, 0.0, 0.0, -0.157,
// 0.0, 0.0, 0.0, 1.0, 0.0, 0.0,
// 0.0, 0.0, 0.0, 0.0, 1.0, 0.0,
// 0.0, 0.0, 0.0, 0.0, 0.0, 1.0
// ];
$background = new \Imagick();
$background->newPseudoImage($imagick->getImageWidth(), $imagick->getImageHeight(), "pattern:checkerboard");
$background->setImageFormat('png');
$imagick->setImageFormat('png');
$imagick->colorMatrixImage($colorMatrix);
$background->compositeImage($imagick, \Imagick::COMPOSITE_ATOP, 0, 0);
header("Content-Type: image/png");
echo $background->getImageBlob();
}
?>
Imagick::combineImages
Combines one or more images into a single image
说明
public Imagick
Imagick::combineImages ( <span
class="methodparam">int $channelType
)
Combines one or more images into a single image. The grayscale value of the pixels of each image in the sequence is assigned in order to the specified channels of the combined image. The typical ordering would be image 1 => Red, 2 => Green, 3 => Blue, etc.
参数
channelType
Provide any channel constant that is valid for your channel mode. To
apply to more than one channel, combine channeltype constants using
bitwise operators. Refer to this list of
channel constants.
返回值
成功时返回 true
。
错误/异常
错误时抛出 ImagickException。
Imagick::commentImage
Adds a comment to your image
说明
public bool
Imagick::commentImage ( <span
class="methodparam">string $comment
)
Adds a comment to your image.
参数
comment
The comment to add
返回值
成功时返回 true
。
错误/异常
错误时抛出 ImagickException。
范例
示例 #1 Using Imagick::commentImage:
Commenting an image and retrieving the comment:
<?php
/* Create new Imagick object */
$im = new imagick();
/* Create an empty image */
$im->newImage(100, 100, new ImagickPixel("red"));
/* Add comment to the image */
$im->commentImage("Hello World!");
/* Display the comment */
echo $im->getImageProperty("comment");
?>
Imagick::compareImageChannels
Returns the difference in one or more images
说明
public array
Imagick::compareImageChannels ( <span
class="methodparam">Imagick $image
,
int
$channelType
, <span
class="type">int $metricType
)
Compares one or more images and returns the difference image.
参数
image
Imagick object containing the image to compare.
channelType
Provide any channel constant that is valid for your channel mode. To
apply to more than one channel, combine channeltype constants using
bitwise operators. Refer to this list of
channel constants.
metricType
One of the
metric type constants.
返回值
Array consisting of new_wand and distortion.
错误/异常
错误时抛出 ImagickException。
Imagick::compareImageLayers
Returns the maximum bounding region between images
说明
public Imagick
Imagick::compareImageLayers ( <span
class="methodparam">int $method
)
Compares each image with the next in a sequence and returns the maximum bounding region of any pixel differences it discovers. 此方法在Imagick基于ImageMagick 6.2.9以上版本编译时可用。
参数
method
One of the
layer method constants.
返回值
成功时返回 true
。
错误/异常
错误时抛出 ImagickException。
范例
示例 #1 Using <span class="function">Imagick::compareImageLayers
Comparing image layers
<?php
/* create new imagick object */
$im = new Imagick("test.gif");
/* optimize the image layers */
$result = $im->compareImageLayers(imagick::LAYERMETHOD_COALESCE);
/* work on the $result */
?>
参见
- Imagick::optimizeImageLayers
- Imagick::writeImages
- Imagick::writeImage
Imagick::compareImages
Compares an image to a reconstructed image
说明
public array
Imagick::compareImages ( <span
class="methodparam">Imagick $compare
, int
$metric
)
Returns an array containing a reconstructed image and the difference between images.
参数
compare
An image to compare to.
metric
Provide a valid metric type constant. Refer to this list of
metric constants.
返回值
Returns an array containing a reconstructed image and the difference between images.
错误/异常
错误时抛出 ImagickException。
范例
示例 #1 Using Imagick::compareImages:
Compare images and display the reconstructed image
<?php
$image1 = new imagick("image1.png");
$image2 = new imagick("image2.png");
$result = $image1->compareImages($image2, Imagick::METRIC_MEANSQUAREERROR);
$result[0]->setImageFormat("png");
header("Content-Type: image/png");
echo $result[0];
?>
Imagick::compositeImage
把一张图合并到一张图
说明
bool <span
class="methodname">Imagick::compositeImage ( <span
class="methodparam">Imagick
$composite_object
, <span
class="type">int $composite
, <span
class="methodparam">int $x
, <span
class="methodparam">int $y
[, <span
class="methodparam">int $channel
<span
class="initializer"> = Imagick::CHANNEL_ALL ] )
把一张图合并到另一张图的指定位置
参数
composite_object
用于合并的图片的Imagick对象
composite
合并操作,定义操作常量。 具体请查看
合并操作常量列表
x
相对图像顶点左上位置(0,0)的横坐标
y
相对图像顶点左上位置(0,0)的纵坐标
channel
通过传入一个通道常量,来开启通道模式。为了支持多个通道,可以通过二进制运算的操作来合并多个通道常量。(Provide
any channel constant that is valid for your channel mode. To apply to
more than one channel, combine channeltype constants using bitwise
operators)可以参考这个列表
通道常量列表.
返回值
成功时返回 true
。
Imagick::__construct
The Imagick constructor
说明
public <span
class="methodname">Imagick::__construct ([ <span
class="methodparam">mixed $files
] )
Creates an Imagick instance for a specified image or set of images.
参数
files
The path to an image to load or an array of paths. Paths can include
wildcards for file names, or can be URLs.
返回值
Returns a new Imagick object on success.
错误/异常
错误时抛出 ImagickException。
Imagick::contrastImage
Change the contrast of the image
说明
public bool
Imagick::contrastImage ( <span
class="methodparam">bool $sharpen
)
Enhances the intensity differences between the lighter and darker elements of the image. Set sharpen to a value other than 0 to increase the image contrast otherwise the contrast is reduced.
参数
sharpen
The sharpen value
返回值
成功时返回 true
。
错误/异常
错误时抛出 ImagickException。
范例
示例 #1 Imagick::contrastImage
<?php
function contrastImage($imagePath, $contrastType) {
$imagick = new \Imagick(realpath($imagePath));
if ($contrastType != 2) {
$imagick->contrastImage($contrastType);
}
header("Content-Type: image/jpg");
echo $imagick->getImageBlob();
}
?>
Imagick::contrastStretchImage
Enhances the contrast of a color image
说明
public bool
Imagick::contrastStretchImage ( <span
class="methodparam">float
$black_point
, <span
class="type">float $white_point
[, <span
class="methodparam">int $channel
<span
class="initializer"> = Imagick::CHANNEL_DEFAULT ] )
Enhances the contrast of a color image by adjusting the pixels color to span the entire range of colors available. 此方法在Imagick基于ImageMagick 6.2.9以上版本编译时可用。
参数
black_point
The black point.
white_point
The white point.
channel
Provide any channel constant that is valid for your channel mode. To
apply to more than one channel, combine channeltype constants using
bitwise operators. Imagick::CHANNEL_ALL
. Refer to this list of
channel constants.
返回值
成功时返回 true
。
Imagick::convolveImage
Applies a custom convolution kernel to the image
说明
public bool
Imagick::convolveImage ( <span
class="methodparam">array $kernel
[,
int $channel
<span
class="initializer"> = Imagick::CHANNEL_DEFAULT ] )
Applies a custom convolution kernel to the image.
参数
kernel
The convolution kernel
channel
Provide any channel constant that is valid for your channel mode. To
apply to more than one channel, combine channeltype constants using
bitwise operators. Refer to this list of
channel constants.
返回值
成功时返回 true
。
错误/异常
错误时抛出 ImagickException。
范例
示例 #1 Imagick::convolveImage
<?php
function convolveImage($imagePath, $bias, $kernelMatrix) {
$imagick = new \Imagick(realpath($imagePath));
//$edgeFindingKernel = [-1, -1, -1, -1, 8, -1, -1, -1, -1,];
$imagick->setImageBias($bias * \Imagick::getQuantum());
$imagick->convolveImage($kernelMatrix);
header("Content-Type: image/jpg");
echo $imagick->getImageBlob();
}
?>
Imagick::count
Get the number of images
说明
public int <span
class="methodname">Imagick::count ([ <span
class="methodparam">int $mode
<span
class="initializer"> = 0 ] )
Returns the number of images.
参数
mode
An unused argument. Currently there is a non-particularly well defined
feature in PHP where calling count() on a countable object might (or
might not) require this method to accept a parameter. This parameter is
here to be conformant with the interface of countable, even though the
param is not used.
返回值
Returns the number of images.
Imagick::cropImage
截图图片的一块区域
说明
bool <span
class="methodname">Imagick::cropImage ( <span
class="methodparam">int $width
,
int $height
, int $x
,
int $y
)
截图图片的一块区域
参数
width
截图的宽度
height
截图的高度
x
裁剪区域左上角的 X 轴坐标(以原图的左上角为原点)
y
裁剪区域左上角的 X 轴坐标(以原图的左上角为原点)
返回值
成功时返回 true
。
错误/异常
错误时抛出 ImagickException。
范例
示例 #1 Imagick::cropImage
<?php
function cropImage($imagePath, $startX, $startY, $width, $height) {
$imagick = new \Imagick(realpath($imagePath));
$imagick->cropImage($width, $height, $startX, $startY);
header("Content-Type: image/jpg");
echo $imagick->getImageBlob();
}
?>
Imagick::cropThumbnailImage
创建缩略图
说明
bool <span
class="methodname">Imagick::cropThumbnailImage ( <span
class="methodparam">int $width
,
int $height
)
首先将图片放大或者缩小,然后从图片的中间裁剪到指定的的大小。
参数
width
缩略图的宽
height
缩略图的高
返回值
成功时返回 true
。
错误/异常
错误时抛出 ImagickException。
Imagick::current
Returns a reference to the current Imagick object
说明
public Imagick Imagick::current ( <span class="methodparam">void )
Returns reference to the current imagick object with image pointer at the correct sequence.
返回值
Returns self on success.
错误/异常
错误时抛出 ImagickException。
Imagick::cycleColormapImage
Displaces an image's colormap
说明
public bool
Imagick::cycleColormapImage ( <span
class="methodparam">int $displace
)
Displaces an image's colormap by a given number of positions. If you cycle the colormap a number of times you can produce a psychedelic effect.
参数
displace
The amount to displace the colormap.
返回值
成功时返回 true
。
错误/异常
错误时抛出 ImagickException。
Imagick::decipherImage
Deciphers an image
说明
public bool
Imagick::decipherImage ( <span
class="methodparam">string
$passphrase
)
Deciphers image that has been enciphered before. The image must be enciphered using Imagick::encipherImage. 此方法在Imagick基于ImageMagick 6.3.9以上版本编译时可用。
参数
passphrase
The passphrase
返回值
成功时返回 true
。
参见
- Imagick::encipherImage
Imagick::deconstructImages
Returns certain pixel differences between images
说明
public Imagick Imagick::deconstructImages ( <span class="methodparam">void )
Compares each image with the next in a sequence and returns the maximum bounding region of any pixel differences it discovers.
返回值
Returns a new Imagick object on success.
错误/异常
错误时抛出 ImagickException。
Imagick::deleteImageArtifact
Delete image artifact
说明
public bool
Imagick::deleteImageArtifact ( <span
class="methodparam">string $artifact
)
Deletes an artifact associated with the image. The difference between image properties and image artifacts is that properties are public and artifacts are private. 此方法在Imagick基于ImageMagick 6.5.7以上版本编译时可用。
参数
artifact
The name of the artifact to delete
返回值
成功时返回 true
。
错误/异常
错误时抛出 ImagickException。
参见
- Imagick::setImageArtifact
- Imagick::getImageArtifact
Imagick::deleteImageProperty
Description
说明
public bool
Imagick::deleteImageProperty ( <span
class="methodparam">string $name
)
Deletes an image property.
参数
name
The name of the property to delete.
返回值
成功时返回 true
。
Imagick::deskewImage
Removes skew from the image
说明
public bool
Imagick::deskewImage ( <span
class="methodparam">float $threshold
)
This method can be used to remove skew from for example scanned images where the paper was not properly placed on the scanning surface. 此方法在Imagick基于ImageMagick 6.4.5以上版本编译时可用。
参数
threshold
Deskew threshold
返回值
范例
示例 #1 Imagick::deskewImage
<?php
function deskewImage($threshold) {
$imagick = new \Imagick(realpath("images/NYTimes-Page1-11-11-1918.jpg"));
$deskewImagick = clone $imagick;
//This is the only thing required for deskewing.
$deskewImagick->deskewImage($threshold);
//The rest of this example is to make the result obvious - because
//otherwise the result is not obvious.
$trim = 9;
$deskewImagick->cropImage($deskewImagick->getImageWidth() - $trim, $deskewImagick->getImageHeight(), $trim, 0);
$imagick->cropImage($imagick->getImageWidth() - $trim, $imagick->getImageHeight(), $trim, 0);
$deskewImagick->resizeimage($deskewImagick->getImageWidth() / 2, $deskewImagick->getImageHeight() / 2, \Imagick::FILTER_LANCZOS, 1);
$imagick->resizeimage($imagick->getImageWidth() / 2, $imagick->getImageHeight() / 2, \Imagick::FILTER_LANCZOS, 1);
$newCanvas = new \Imagick();
$newCanvas->newimage($imagick->getImageWidth() + $deskewImagick->getImageWidth() + 20, $imagick->getImageHeight(), 'red', 'jpg');
$newCanvas->compositeimage($imagick, \Imagick::COMPOSITE_COPY, 5, 0);
$newCanvas->compositeimage($deskewImagick, \Imagick::COMPOSITE_COPY, $imagick->getImageWidth() + 10, 0);
header("Content-Type: image/jpg");
echo $newCanvas->getImageBlob();
}
?>
Imagick::despeckleImage
Reduces the speckle noise in an image
说明
public bool Imagick::despeckleImage ( <span class="methodparam">void )
Reduces the speckle noise in an image while preserving the edges of the original image.
返回值
成功时返回 true
。
错误/异常
错误时抛出 ImagickException。
范例
示例 #1 Imagick::despeckleImage
<?php
function despeckleImage($imagePath) {
$imagick = new \Imagick(realpath($imagePath));
$imagick->despeckleImage();
header("Content-Type: image/jpg");
echo $imagick->getImageBlob();
}
?>
Imagick::destroy
Destroys the Imagick object
说明
public bool Imagick::destroy ( <span class="methodparam">void )
Destroys the Imagick object and frees all resources associated with it. This method is deprecated in favour of Imagick::clear.
返回值
成功时返回 true
。
Imagick::displayImage
Displays an image
说明
public bool
Imagick::displayImage ( <span
class="methodparam">string
$servername
)
This method displays an image on a X server.
参数
servername
The X server name
返回值
成功时返回 true
。
错误/异常
错误时抛出 ImagickException。
Imagick::displayImages
Displays an image or image sequence
说明
public bool
Imagick::displayImages ( <span
class="methodparam">string
$servername
)
Displays an image or image sequence on a X server.
参数
servername
The X server name
返回值
成功时返回 true
。
错误/异常
错误时抛出 ImagickException。
Imagick::distortImage
Distorts an image using various distortion methods
说明
public bool
Imagick::distortImage ( <span
class="methodparam">int $method
,
array
$arguments
, <span
class="type">bool $bestfit
)
Distorts an image using various distortion methods, by mapping color
lookups of the source image to a new destination image usually of the
same size as the source image, unless 'bestfit' is set to true
.
If 'bestfit' is enabled, and distortion allows it, the destination image is adjusted to ensure the whole source 'image' will just fit within the final destination image, which will be sized and offset accordingly. Also in many cases the virtual offset of the source image will be taken into account in the mapping.
此方法在Imagick基于ImageMagick 6.3.6以上版本编译时可用。
参数
method
The method of image distortion. See
distortion constants
arguments
The arguments for this distortion method
bestfit
Attempt to resize destination to fit distorted source
返回值
成功时返回 true
。
错误/异常
错误时抛出 ImagickException。
范例
示例 #1 Using Imagick::distortImage:
Distort an image and display to the browser.
<?php
/* Create new object */
$im = new Imagick();
/* Create new checkerboard pattern */
$im->newPseudoImage(100, 100, "pattern:checkerboard");
/* Set the image format to png */
$im->setImageFormat('png');
/* Fill new visible areas with transparent */
$im->setImageVirtualPixelMethod(Imagick::VIRTUALPIXELMETHOD_TRANSPARENT);
/* Activate matte */
$im->setImageMatte(true);
/* Control points for the distortion */
$controlPoints = array( 10, 10,
10, 5,
10, $im->getImageHeight() - 20,
10, $im->getImageHeight() - 5,
$im->getImageWidth() - 10, 10,
$im->getImageWidth() - 10, 20,
$im->getImageWidth() - 10, $im->getImageHeight() - 10,
$im->getImageWidth() - 10, $im->getImageHeight() - 30);
/* Perform the distortion */
$im->distortImage(Imagick::DISTORTION_PERSPECTIVE, $controlPoints, true);
/* Ouput the image */
header("Content-Type: image/png");
echo $im;
?>
以上例程的输出类似于:
参见
- Imagick::blurImage
- Imagick::motionBlurImage
- Imagick::radialBlurImage
Imagick::drawImage
把 ImagickDraw 对象渲染到当前图片上
说明
bool <span
class="methodname">Imagick::drawImage ( <span
class="methodparam">ImagickDraw $draw
)
把 ImagickDraw 对象渲染到当前图片上。
参数
draw
被渲染到图片上的 ImagickDraw 对象(在经过各种绘画操作之后的 ImagickDraw
对象)
返回值
成功时返回 true
。
Imagick::edgeImage
Enhance edges within the image
说明
public bool
Imagick::edgeImage ( <span
class="methodparam">float $radius
)
Enhance edges within the image with a convolution filter of the given radius. Use radius 0 and it will be auto-selected.
参数
radius
The radius of the operation.
返回值
成功时返回 true
。
错误/异常
错误时抛出 ImagickException。
范例
示例 #1 Imagick::edgeImage
<?php
function edgeImage($imagePath, $radius) {
$imagick = new \Imagick(realpath($imagePath));
$imagick->edgeImage($radius);
header("Content-Type: image/jpg");
echo $imagick->getImageBlob();
}
?>
Imagick::embossImage
Returns a grayscale image with a three-dimensional effect
说明
public bool
Imagick::embossImage ( <span
class="methodparam">float $radius
,
float
$sigma
)
Returns a grayscale image with a three-dimensional effect. We convolve the image with a Gaussian operator of the given radius and standard deviation (sigma). For reasonable results, radius should be larger than sigma. Use a radius of 0 and it will choose a suitable radius for you.
参数
radius
The radius of the effect
sigma
The sigma of the effect
返回值
成功时返回 true
。
错误/异常
错误时抛出 ImagickException。
范例
示例 #1 Imagick::embossImage
<?php
function embossImage($imagePath, $radius, $sigma) {
$imagick = new \Imagick(realpath($imagePath));
$imagick->embossImage($radius, $sigma);
header("Content-Type: image/jpg");
echo $imagick->getImageBlob();
}
?>
Imagick::encipherImage
Enciphers an image
说明
public bool
Imagick::encipherImage ( <span
class="methodparam">string
$passphrase
)
Converts plain pixels to enciphered pixels. The image is not readable until it has been deciphered using <span class="function">Imagick::decipherImage 此方法在Imagick基于ImageMagick 6.3.9以上版本编译时可用。
参数
passphrase
The passphrase
返回值
成功时返回 true
。
参见
- Imagick::decipherImage
Imagick::enhanceImage
Improves the quality of a noisy image
说明
public bool Imagick::enhanceImage ( <span class="methodparam">void )
Applies a digital filter that improves the quality of a noisy image.
返回值
成功时返回 true
。
错误/异常
错误时抛出 ImagickException。
范例
示例 #1 Imagick::enhanceImage
<?php
function enhanceImage($imagePath) {
$imagick = new \Imagick(realpath($imagePath));
$imagick->enhanceImage();
header("Content-Type: image/jpg");
echo $imagick->getImageBlob();
}
?>
Imagick::equalizeImage
Equalizes the image histogram
说明
public bool Imagick::equalizeImage ( <span class="methodparam">void )
Equalizes the image histogram.
返回值
成功时返回 true
。
错误/异常
错误时抛出 ImagickException。
范例
示例 #1 Imagick::equalizeImage
<?php
function equalizeImage($imagePath) {
$imagick = new \Imagick(realpath($imagePath));
$imagick->equalizeImage();
header("Content-Type: image/jpg");
echo $imagick->getImageBlob();
}
?>
Imagick::evaluateImage
Applies an expression to an image
说明
public bool
Imagick::evaluateImage ( <span
class="methodparam">int $op
, <span
class="methodparam">float $constant
[, int
$channel
=
Imagick::CHANNEL_DEFAULT ] )
Applys an arithmetic, relational, or logical expression to an image. Use these operators to lighten or darken an image, to increase or decrease contrast in an image, or to produce the "negative" of an image.
参数
op
The evaluation operator
constant
The value of the operator
channel
Provide any channel constant that is valid for your channel mode. To
apply to more than one channel, combine channeltype constants using
bitwise operators. Refer to this list of
channel constants.
范例
示例 #1 Using Imagick::evaluateImage
Using evaluateImage to reduce opacity in an image.
<?php
// Create new object with the image
$im = new Imagick('example-alpha.png');
// Reduce the alpha by 50%
$im->evaluateImage(Imagick::EVALUATE_DIVIDE, 2, Imagick::CHANNEL_ALPHA);
// Output the image
header("Content-Type: image/png");
echo $im;
?>
返回值
成功时返回 true
。
错误/异常
错误时抛出 ImagickException。
Imagick::exportImagePixels
Exports raw image pixels
说明
public array
Imagick::exportImagePixels ( <span
class="methodparam">int $x
, <span
class="methodparam">int $y
, <span
class="methodparam">int $width
,
int $height
, string
$map
, int
$STORAGE
)
Exports image pixels into an array. The map defines the ordering of the exported pixels. The size of the returned array is width * height * strlen(map). 此方法在Imagick基于ImageMagick 6.4.7以上版本编译时可用。
参数
x
X-coordinate of the exported area
y
Y-coordinate of the exported area
width
Width of the exported aread
height
Height of the exported area
map
Ordering of the exported pixels. For example "RGB". Valid characters
for the map are R, G, B, A, O, C, Y, M, K, I and P.
STORAGE
Refer to this list of
pixel type constants
范例
示例 #1 Using <span class="function">Imagick::exportImagePixels
Export image pixels into an array
<?php
/* Create new object */
$im = new Imagick();
/* Create new image */
$im->newPseudoImage(0, 0, "magick:rose");
/* Export the image pixels */
$pixels = $im->exportImagePixels(10, 10, 2, 2, "RGB", Imagick::PIXEL_CHAR);
/* Output */
var_dump($pixels);
?>
以上例程会输出:
array(12) {
[0]=>
int(72)
[1]=>
int(64)
[2]=>
int(57)
[3]=>
int(69)
[4]=>
int(59)
[5]=>
int(43)
[6]=>
int(124)
[7]=>
int(120)
[8]=>
int(-96)
[9]=>
int(91)
[10]=>
int(84)
[11]=>
int(111)
}
返回值
Returns an array containing the pixels values.
错误/异常
错误时抛出 ImagickException。
Imagick::extentImage
Set image size
说明
public bool
Imagick::extentImage ( <span
class="methodparam">int $width
,
int $height
, int $x
,
int $y
)
Comfortability method for setting image size. The method sets the image size and allows setting x,y coordinates where the new area begins. 此方法在Imagick基于ImageMagick 6.3.1以上版本编译时可用。
Caution
Prior to ImageMagick 6.5.7-8 (1623), $x was positive when shifting to the left and negative when shifting to the right, and $y was positive when shifting an image up and negative when shifting an image down. Somewhere betwen ImageMagick 6.3.7 (1591) and ImageMagick 6.5.7-8 (1623), the axes of $x and $y were flipped, so that $x was negative when shifting to the left and positive when shifting to the right, and $y was negative when shifting an image up and positive when shifting an image down. Somewhere between ImageMagick 6.5.7-8 (1623) and ImageMagick 6.6.9-7 (1641), the axes of $x and $y were flipped back to pre-ImageMagick 6.5.7-8 (1623) functionality.
参数
width
The new width
height
The new height
x
X position for the new size
y
Y position for the new size
返回值
成功时返回 true
。
参见
- Imagick::resizeImage
- Imagick::thumbnailImage
- Imagick::cropImage
Imagick::filter
Description
Warning
此函数在 Imagick 3.4.4 中被 废弃,强烈建议不要应用此函数。
说明
public bool
Imagick::filter ( <span
class="methodparam">ImagickKernel
$ImagickKernel
[, <span
class="type">int $channel
=
Imagick::CHANNEL_UNDEFINED ] )
Applies a custom convolution kernel to the image.
参数
ImagickKernel
An instance of ImagickKernel that represents either a single kernel or a
linked series of kernels.
channel
Provide any channel constant that is valid for your channel mode. To
apply to more than one channel, combine
channel constants
using bitwise operators. 缺省为Imagick::CHANNEL_DEFAULT
. 参考此
通道常数列表
返回值
成功时返回 true
。
范例
示例 #1 Imagick::filter
<?php
function filter($imagePath) {
$imagick = new \Imagick(realpath($imagePath));
$matrix = [
[-1, 0, -1],
[0, 5, 0],
[-1, 0, -1],
];
$kernel = \ImagickKernel::fromMatrix($matrix);
$strength = 0.5;
$kernel->scale($strength, \Imagick::NORMALIZE_KERNEL_VALUE);
$kernel->addUnityKernel(1 - $strength);
$imagick->filter($kernel);
header("Content-Type: image/jpg");
echo $imagick->getImageBlob();
}
?>
Imagick::flattenImages
Merges a sequence of images
Warning
此函数在 Imagick 3.4.4 中被 废弃,强烈建议不要应用此函数。
说明
public Imagick Imagick::flattenImages ( <span class="methodparam">void )
Merges a sequence of images. This is useful for combining Photoshop layers into a single image.
返回值
成功时返回 true
。
错误/异常
错误时抛出 ImagickException。
Imagick::flipImage
Creates a vertical mirror image
说明
public bool Imagick::flipImage ( <span class="methodparam">void )
Creates a vertical mirror image by reflecting the pixels around the central x-axis.
返回值
成功时返回 true
。
错误/异常
错误时抛出 ImagickException。
范例
示例 #1 Imagick::flipImage
<?php
function flipImage($imagePath) {
$imagick = new \Imagick(realpath($imagePath));
$imagick->flipImage();
header("Content-Type: image/jpg");
echo $imagick->getImageBlob();
}
?>
Imagick::floodFillPaintImage
Changes the color value of any pixel that matches target
说明
public bool
Imagick::floodFillPaintImage ( <span
class="methodparam">mixed $fill
,
float $fuzz
, mixed
$target
, <span
class="type">int $x
, <span
class="type">int $y
, <span
class="type">bool $invert
[, <span
class="methodparam">int $channel
<span
class="initializer"> = Imagick::CHANNEL_DEFAULT ] )
Changes the color value of any pixel that matches target and is an immediate neighbor. This method is a replacement for deprecated <span class="function">Imagick::paintFloodFillImage. 此方法在Imagick基于ImageMagick 6.3.8以上版本编译时可用。
参数
fill
ImagickPixel object or a string containing the fill color
fuzz
The amount of fuzz. For example, set fuzz to 10 and the color red at
intensities of 100 and 102 respectively are now interpreted as the same
color.
target
ImagickPixel object or a string containing the target color to paint
x
X start position of the floodfill
y
Y start position of the floodfill
invert
If true
paints any pixel that does not match the target color.
channel
Provide any channel constant that is valid for your channel mode. To
apply to more than one channel, combine
channel constants
using bitwise operators. 缺省为Imagick::CHANNEL_DEFAULT
. 参考此
通道常数列表
返回值
成功时返回 true
。
范例
示例 #1 Imagick::floodfillPaintImage example
<?php
/* Create new imagick object */
$im = new Imagick();
/* create red, green and blue images */
$im->newImage(100, 50, "red");
$im->newImage(100, 50, "green");
$im->newImage(100, 50, "blue");
/* Append the images into one */
$im->resetIterator();
$combined = $im->appendImages(true);
/* Save the intermediate image for comparison */
$combined->writeImage("floodfillpaint_intermediate.png");
/* The target pixel to paint */
$x = 1;
$y = 1;
/* Get the color we are painting */
$target = $combined->getImagePixelColor($x, $y);
/* Paints pixel in position 1,1 black and all neighboring
pixels that match the target color */
$combined->floodfillPaintImage("black", 1, $target, $x, $y, false);
/* Save the result */
$combined->writeImage("floodfillpaint_result.png");
?>
以上例程的输出类似于:
Imagick::flopImage
Creates a vertical mirror image
说明
public bool Imagick::flopImage ( <span class="methodparam">void )
Creates a vertical mirror image by reflecting the pixels around the central y-axis.
返回值
成功时返回 true
。
错误/异常
错误时抛出 ImagickException。
范例
示例 #1 Imagick::flopImage
<?php
function flopImage($imagePath) {
$imagick = new \Imagick(realpath($imagePath));
$imagick->flopImage();
header("Content-Type: image/jpg");
echo $imagick->getImageBlob();
}
?>
Imagick::forwardFourierTransformImage
Description
说明
public bool
Imagick::forwardFourierTransformimage (
bool
$magnitude
)
Implements the discrete Fourier transform (DFT) of the image either as a magnitude / phase or real / imaginary image pair.
参数
magnitude
If true, return as magnitude / phase pair otherwise a real / imaginary
image pair.
返回值
成功时返回 true
。
范例
示例 #1 <span class="function">Imagick::forwardFourierTransformImage
<?php
//Utility function for forwardTransformImage
function createMask() {
$draw = new \ImagickDraw();
$draw->setStrokeOpacity(0);
$draw->setStrokeColor('rgb(255, 255, 255)');
$draw->setFillColor('rgb(255, 255, 255)');
//Draw a circle on the y-axis, with it's centre
//at x, y that touches the origin
$draw->circle(250, 250, 220, 250);
$imagick = new \Imagick();
$imagick->newImage(512, 512, "black");
$imagick->drawImage($draw);
$imagick->gaussianBlurImage(20, 20);
$imagick->autoLevelImage();
return $imagick;
}
function forwardFourierTransformImage($imagePath) {
$imagick = new \Imagick(realpath($imagePath));
$imagick->resizeimage(512, 512, \Imagick::FILTER_LANCZOS, 1);
$mask = createMask();
$imagick->forwardFourierTransformImage(true);
@$imagick->setimageindex(0);
$magnitude = $imagick->getimage();
@$imagick->setimageindex(1);
$imagickPhase = $imagick->getimage();
if (true) {
$imagickPhase->compositeImage($mask, \Imagick::COMPOSITE_MULTIPLY, 0, 0);
}
if (false) {
$output = clone $imagickPhase;
$output->setimageformat('png');
header("Content-Type: image/png");
echo $output->getImageBlob();
}
$magnitude->inverseFourierTransformImage($imagickPhase, true);
$magnitude->setimageformat('png');
header("Content-Type: image/png");
echo $magnitude->getImageBlob();
}
?>
Imagick::frameImage
Adds a simulated three-dimensional border
说明
public bool
Imagick::frameImage ( <span
class="methodparam">mixed
$matte_color
, <span
class="type">int $width
, <span
class="methodparam">int $height
,
int
$inner_bevel
, <span
class="type">int $outer_bevel
)
Adds a simulated three-dimensional border around the image. The width and height specify the border width of the vertical and horizontal sides of the frame. The inner and outer bevels indicate the width of the inner and outer shadows of the frame.
参数
matte_color
ImagickPixel object or a string representing the matte color
width
The width of the border
height
The height of the border
inner_bevel
The inner bevel width
outer_bevel
The outer bevel width
返回值
成功时返回 true
。
错误/异常
错误时抛出 ImagickException。
更新日志
版本 | 说明 |
---|---|
PECL imagick 2.1.0 | Now allows a string representing the color as the first parameter. Previous versions allow only an ImagickPixel object. |
范例
示例 #1 Imagick::frameImage
<?php
function frameImage($imagePath, $color, $width, $height, $innerBevel, $outerBevel) {
$imagick = new \Imagick(realpath($imagePath));
$width = $width + $innerBevel + $outerBevel;
$height = $height + $innerBevel + $outerBevel;
$imagick->frameimage(
$color,
$width,
$height,
$innerBevel,
$outerBevel
);
header("Content-Type: image/jpg");
echo $imagick->getImageBlob();
}
?>
Imagick::functionImage
Applies a function on the image
说明
public bool
Imagick::functionImage ( <span
class="methodparam">int $function
,
array
$arguments
[, <span
class="type">int $channel
=
Imagick::CHANNEL_DEFAULT ] )
Applies an arithmetic, relational, or logical expression to a pseudo image.
See also » ImageMagick v6 Examples - Image Transformations — Function, Multi-Argument Evaluate
此方法在Imagick基于ImageMagick 6.4.9以上版本编译时可用。
参数
function
Refer to this list of
function constants
arguments
Array of arguments to pass to this function.
返回值
成功时返回 true
。
错误/异常
错误时抛出 ImagickException。
范例
示例 #1 Create a sinusoidal gradient
<?php
$imagick = new Imagick();
$imagick->newPseudoImage(200, 200, 'gradient:black-white');
$arguments = array(3, -90);
$imagick->functionImage(Imagick::FUNCTION_SINUSOID, $arguments);
header("Content-Type: image/png");
$imagick->setImageFormat("png");
echo $imagick->getImageBlob();
?>
以上例程的输出类似于:
示例 #2 Create a gradient from the polynomial (4x^2 - 4x + 1)
<?php
$imagick = new Imagick();
$imagick->newPseudoImage(200, 200, 'gradient:black-white');
$arguments = array(4, -4, 1);
$imagick->functionImage(Imagick::FUNCTION_POLYNOMIAL, $arguments);
header("Content-Type: image/png");
$imagick->setimageformat("png");
echo $imagick->getImageBlob();
?>
以上例程的输出类似于:
**示例 #3 Create a complex gradient from the polynomial (4x^2 - 4x^2 +
- modulated by a sinusoidal gradient**
<?php
$imagick1 = new Imagick();
$imagick1->newPseudoImage(200, 200, 'gradient:black-white');
$arguments = array(9, -90);
$imagick1->functionImage(Imagick::FUNCTION_SINUSOID, $arguments);
$imagick2 = new Imagick();
$imagick2->newPseudoImage(200, 200, 'gradient:black-white');
$arguments = array(0.5, 0);
$imagick2->functionImage(Imagick::FUNCTION_SINUSOID, $arguments);
$imagick1->compositeimage($imagick2, Imagick::COMPOSITE_MULTIPLY, 0, 0);
header("Content-Type: image/png");
$imagick1->setImageFormat("png");
echo $imagick1->getImageBlob();
?>
以上例程的输出类似于:
Imagick::fxImage
Evaluate expression for each pixel in the image
说明
public Imagick
Imagick::fxImage ( <span
class="methodparam">string
$expression
[, <span
class="type">int $channel
=
Imagick::CHANNEL_DEFAULT ] )
Evaluate expression for each pixel in the image. Consult » The Fx Special Effects Image Operator for more information.
参数
expression
The expression.
channel
Provide any channel constant that is valid for your channel mode. To
apply to more than one channel, combine channeltype constants using
bitwise operators. Refer to this list of
channel constants.
返回值
成功时返回 true
。
错误/异常
错误时抛出 ImagickException。
范例
示例 #1 Imagick::fxImage
<?php
function fxImage() {
$imagick = new \Imagick();
$imagick->newPseudoImage(200, 200, "xc:white");
$fx = 'xx=i-w/2; yy=j-h/2; rr=hypot(xx,yy); (.5-rr/140)*1.2+.5';
$fxImage = $imagick->fxImage($fx);
header("Content-Type: image/png");
$fxImage->setimageformat('png');
echo $fxImage->getImageBlob();
}
?>
Imagick::gammaImage
Gamma-corrects an image
说明
public bool
Imagick::gammaImage ( <span
class="methodparam">float $gamma
[,
int $channel
<span
class="initializer"> = Imagick::CHANNEL_DEFAULT ] )
Gamma-corrects an image. The same image viewed on different devices will have perceptual differences in the way the image's intensities are represented on the screen. Specify individual gamma levels for the red, green, and blue channels, or adjust all three with the gamma parameter. Values typically range from 0.8 to 2.3.
参数
gamma
The amount of gamma-correction.
channel
Provide any channel constant that is valid for your channel mode. To
apply to more than one channel, combine channeltype constants using
bitwise operators. Refer to this list of
channel constants.
返回值
成功时返回 true
。
错误/异常
错误时抛出 ImagickException。
范例
示例 #1 Imagick::gammaImage
<?php
function gammaImage($imagePath, $gamma, $channel) {
$imagick = new \Imagick(realpath($imagePath));
$imagick->gammaImage($gamma, $channel);
header("Content-Type: image/jpg");
echo $imagick->getImageBlob();
}
?>
Imagick::gaussianBlurImage
Blurs an image
说明
public bool
Imagick::gaussianBlurImage ( <span
class="methodparam">float $radius
,
float
$sigma
[, <span
class="type">int $channel
=
Imagick::CHANNEL_DEFAULT ] )
Blurs an image. We convolve the image with a Gaussian operator of the given radius and standard deviation (sigma). For reasonable results, the radius should be larger than sigma. Use a radius of 0 and selects a suitable radius for you.
参数
radius
The radius of the Gaussian, in pixels, not counting the center pixel.
sigma
The standard deviation of the Gaussian, in pixels.
channel
Provide any channel constant that is valid for your channel mode. To
apply to more than one channel, combine channeltype constants using
bitwise operators. Refer to this list of
channel constants.
返回值
成功时返回 true
。
错误/异常
错误时抛出 ImagickException。
范例
示例 #1 Imagick::gaussianBlurImage
<?php
function gaussianBlurImage($imagePath, $radius, $sigma, $channel) {
$imagick = new \Imagick(realpath($imagePath));
$imagick->gaussianBlurImage($radius, $sigma, $channel);
header("Content-Type: image/jpg");
echo $imagick->getImageBlob();
}
?>
Imagick::getColorspace
Gets the colorspace
说明
public int <span class="methodname">Imagick::getColorspace ( <span class="methodparam">void )
Gets the global colorspace value. 此方法在Imagick基于ImageMagick 6.5.7以上版本编译时可用。
返回值
Returns an integer which can be compared against COLORSPACE constants.
Imagick::getCompression
Gets the object compression type
说明
public int <span class="methodname">Imagick::getCompression ( <span class="methodparam">void )
Gets the object compression type.
返回值
Returns the compression constant
Imagick::getCompressionQuality
Gets the object compression quality
说明
public int <span class="methodname">Imagick::getCompressionQuality ( <span class="methodparam">void )
Gets the object compression quality.
返回值
Returns integer describing the compression quality
Imagick::getCopyright
Returns the ImageMagick API copyright as a string
说明
public <span class="modifier">static string <span class="methodname">Imagick::getCopyright ( <span class="methodparam">void )
Returns the ImageMagick API copyright as a string.
返回值
Returns a string containing the copyright notice of Imagemagick and Magickwand C API.
Imagick::getFilename
The filename associated with an image sequence
说明
public string Imagick::getFilename ( <span class="methodparam">void )
Returns the filename associated with an image sequence.
返回值
Returns a string on success.
错误/异常
错误时抛出 ImagickException。
Imagick::getFont
Gets font
说明
public string Imagick::getFont ( <span class="methodparam">void )
Returns the objects font property. 此方法在Imagick基于ImageMagick 6.3.7以上版本编译时可用。
返回值
Returns the string containing the font name or false
if not font
is set.
参见
- Imagick::setFont
- ImagickDraw::setFont
- ImagickDraw::getFont
Imagick::getFormat
Returns the format of the Imagick object
说明
public string Imagick::getFormat ( <span class="methodparam">void )
Returns the format of the Imagick object.
返回值
Returns the format of the image.
错误/异常
错误时抛出 ImagickException。
Imagick::getGravity
Gets the gravity
说明
public int <span class="methodname">Imagick::getGravity ( <span class="methodparam">void )
Gets the global gravity property for the Imagick object. 此方法在Imagick基于ImageMagick 6.4.0以上版本编译时可用。
返回值
Returns the gravity property. Refer to the list of gravity constants.
Imagick::getHomeURL
Returns the ImageMagick home URL
说明
public <span class="modifier">static string <span class="methodname">Imagick::getHomeURL ( <span class="methodparam">void )
Returns the ImageMagick home URL.
返回值
Returns a link to the imagemagick homepage.
Imagick::getImage
Returns a new Imagick object
说明
public Imagick Imagick::getImage ( <span class="methodparam">void )
Returns a new Imagick object with the current image sequence.
返回值
Returns a new Imagick object with the current image sequence.
错误/异常
错误时抛出 ImagickException。
Imagick::getImageAlphaChannel
获取图像的 alpha 通道
说明
int <span class="methodname">Imagick::getImageAlphaChannel ( <span class="methodparam">void )
获取图像的alpha通道值,为以下常量之一 alpha channel constants. 此方法在Imagick基于ImageMagick 6.4.0以上版本编译时可用。
返回值
返回当前图像的alpha通道值,该值是一个常量。该参考常量列表 alpha channel constants.
错误/异常
错误时抛出 ImagickException。
Imagick::getImageArtifact
Get image artifact
说明
public string
Imagick::getImageArtifact ( <span
class="methodparam">string $artifact
)
Gets an artifact associated with the image. The difference between image properties and image artifacts is that properties are public and artifacts are private. 此方法在Imagick基于ImageMagick 6.5.7以上版本编译时可用。
参数
artifact
The name of the artifact
返回值
Returns the artifact value on success.
错误/异常
错误时抛出 ImagickException。
参见
- Imagick::setImageArtifact
- Imagick::deleteImageArtifact
Imagick::getImageAttribute
Description
Warning
此函数在 Imagick 3.4.4 中被 废弃,强烈建议不要应用此函数。
说明
public string
Imagick::getImageAttribute ( <span
class="methodparam">string $key
)
Returns a named attribute.
参数
key
The key of the attribute to get.
返回值
Imagick::getImageBackgroundColor
Returns the image background color
说明
public <span class="type">ImagickPixel <span class="methodname">Imagick::getImageBackgroundColor ( <span class="methodparam">void )
Returns the image background color.
返回值
Returns an ImagickPixel set to the background color of the image.
错误/异常
错误时抛出 ImagickException。
Imagick::getImageBlob
Returns the image sequence as a blob
说明
public string Imagick::getImageBlob ( <span class="methodparam">void )
Implements direct to memory image formats. It returns the image sequence as a string. The format of the image determines the format of the returned blob (GIF, JPEG, PNG, etc.). To return a different image format, use Imagick::setImageFormat().
返回值
Returns a string containing the image.
错误/异常
错误时抛出 ImagickException。
Imagick::getImageBluePrimary
Returns the chromaticy blue primary point
说明
public array Imagick::getImageBluePrimary ( <span class="methodparam">void )
Returns the chromaticity blue primary point for the image.
参数
x
The chromaticity blue primary x-point.
y
The chromaticity blue primary y-point.
返回值
Array consisting of "x" and "y" coordinates of point.
错误/异常
错误时抛出 ImagickException。
Imagick::getImageBorderColor
Returns the image border color
说明
public <span class="type">ImagickPixel <span class="methodname">Imagick::getImageBorderColor ( <span class="methodparam">void )
Returns the image border color.
返回值
成功时返回 true
。
错误/异常
错误时抛出 ImagickException。
Imagick::getImageChannelDepth
Gets the depth for a particular image channel
说明
public int <span
class="methodname">Imagick::getImageChannelDepth ( <span
class="methodparam">int $channel
)
Gets the depth for a particular image channel.
参数
channel
Provide any channel constant that is valid for your channel mode. To
apply to more than one channel, combine
channel constants
using bitwise operators. 缺省为Imagick::CHANNEL_DEFAULT
. 参考此
通道常数列表
返回值
成功时返回 true
。
Imagick::getImageChannelDistortion
Compares image channels of an image to a reconstructed image
说明
public float
Imagick::getImageChannelDistortion (
Imagick
$reference
, <span
class="type">int $channel
, <span
class="methodparam">int $metric
)
Compares one or more image channels of an image to a reconstructed image and returns the specified distortion metric.
参数
reference
Imagick object to compare to.
channel
Provide any channel constant that is valid for your channel mode. To
apply to more than one channel, combine channeltype constants using
bitwise operators. Refer to this list of
channel constants.
metric
One of the
metric type constants.
返回值
成功时返回 true
。
错误/异常
错误时抛出 ImagickException。
Imagick::getImageChannelDistortions
Gets channel distortions
说明
public float
Imagick::getImageChannelDistortions (
Imagick
$reference
, <span
class="type">int $metric
[, <span
class="methodparam">int $channel
<span
class="initializer"> = Imagick::CHANNEL_DEFAULT ] )
Compares one or more image channels of an image to a reconstructed image and returns the specified distortion metrics 此方法在Imagick基于ImageMagick 6.4.4以上版本编译时可用。
参数
reference
Imagick object containing the reference image
metric
Refer to this list of
metric type constants.
channel
Provide any channel constant that is valid for your channel mode. To
apply to more than one channel, combine
channel constants
using bitwise operators. 缺省为Imagick::CHANNEL_DEFAULT
. 参考此
通道常数列表
返回值
Returns a double describing the channel distortion.
错误/异常
错误时抛出 ImagickException。
Imagick::getImageChannelExtrema
Gets the extrema for one or more image channels
Warning
此函数在 Imagick 3.4.4 中被 废弃,强烈建议不要应用此函数。
说明
public array
Imagick::getImageChannelExtrema ( <span
class="methodparam">int $channel
)
Gets the extrema for one or more image channels. Return value is an associative array with the keys "minima" and "maxima".
参数
channel
Provide any channel constant that is valid for your channel mode. To
apply to more than one channel, combine channeltype constants using
bitwise operators. Refer to this list of
channel constants.
返回值
成功时返回 true
。
错误/异常
错误时抛出 ImagickException。
Imagick::getImageChannelKurtosis
The getImageChannelKurtosis purpose
说明
public array
Imagick::getImageChannelKurtosis ([
int $channel
<span
class="initializer"> = Imagick::CHANNEL_DEFAULT ] )
Get the kurtosis and skewness of a specific channel. 此方法在Imagick基于ImageMagick 6.4.9以上版本编译时可用。
参数
channel
Provide any channel constant that is valid for your channel mode. To
apply to more than one channel, combine
channel constants
using bitwise operators. 缺省为Imagick::CHANNEL_DEFAULT
. 参考此
通道常数列表
返回值
Returns an array with kurtosis and skewness members.
错误/异常
错误时抛出 ImagickException。
Imagick::getImageChannelMean
Gets the mean and standard deviation
说明
public array
Imagick::getImageChannelMean ( <span
class="methodparam">int $channel
)
Gets the mean and standard deviation of one or more image channels.
参数
channel
Provide any channel constant that is valid for your channel mode. To
apply to more than one channel, combine channeltype constants using
bitwise operators. Refer to this list of
channel constants.
返回值
Returns an array with "mean" and "standardDeviation" members.
错误/异常
错误时抛出 ImagickException。
Imagick::getImageChannelRange
Gets channel range
说明
public array
Imagick::getImageChannelRange ( <span
class="methodparam">int $channel
)
Gets the range for one or more image channels. 此方法在Imagick基于ImageMagick 6.4.0以上版本编译时可用。
参数
channel
Provide any channel constant that is valid for your channel mode. To
apply to more than one channel, combine
channel constants
using bitwise operators. 缺省为Imagick::CHANNEL_DEFAULT
. 参考此
通道常数列表
返回值
Returns an array containing minima and maxima values of the channel(s).
错误/异常
错误时抛出 ImagickException。
Imagick::getImageChannelStatistics
Returns statistics for each channel in the image
说明
public array Imagick::getImageChannelStatistics ( void )
Returns statistics for each channel in the image. The statistics include the channel depth, its minima and maxima, the mean, and the standard deviation.
返回值
成功时返回 true
。
Imagick::getImageClipMask
Gets image clip mask
Warning
此函数在 Imagick 3.4.4 中被 废弃,强烈建议不要应用此函数。
说明
public Imagick Imagick::getImageClipMask ( <span class="methodparam">void )
Returns the image clip mask. The clip mask is an Imagick object containing the clip mask. 此方法在Imagick基于ImageMagick 6.3.6以上版本编译时可用。
返回值
Returns an Imagick object containing the clip mask.
错误/异常
错误时抛出 ImagickException。
Imagick::getImageColormapColor
Returns the color of the specified colormap index
说明
public <span
class="type">ImagickPixel <span
class="methodname">Imagick::getImageColormapColor ( <span
class="methodparam">int $index
)
Returns the color of the specified colormap index.
参数
index
The offset into the image colormap.
返回值
成功时返回 true
。
错误/异常
错误时抛出 ImagickException。
Imagick::getImageColors
Gets the number of unique colors in the image
说明
public int <span class="methodname">Imagick::getImageColors ( <span class="methodparam">void )
Gets the number of unique colors in the image.
返回值
Returns an int, the number of unique colors in the image.
Imagick::getImageColorspace
Gets the image colorspace
说明
public int <span class="methodname">Imagick::getImageColorspace ( <span class="methodparam">void )
Gets the image colorspace.
返回值
Returns an integer which can be compared against COLORSPACE constants.
Imagick::getImageCompose
Returns the composite operator associated with the image
说明
public int <span class="methodname">Imagick::getImageCompose ( <span class="methodparam">void )
Returns the composite operator associated with the image.
返回值
成功时返回 true
。
Imagick::getImageCompression
Gets the current image's compression type
说明
public int <span class="methodname">Imagick::getImageCompression ( <span class="methodparam">void )
Gets the current image's compression type.
返回值
Returns the compression constant
Imagick::getImageCompressionQuality
Gets the current image's compression quality
说明
public int <span class="methodname">Imagick::getImageCompressionQuality ( <span class="methodparam">void )
Gets the current image's compression quality
返回值
Returns integer describing the images compression quality
Imagick::getImageDelay
Gets the image delay
说明
public int <span class="methodname">Imagick::getImageDelay ( <span class="methodparam">void )
Gets the image delay.
返回值
Returns the image delay.
错误/异常
错误时抛出 ImagickException。
Imagick::getImageDepth
Gets the image depth
说明
public int <span class="methodname">Imagick::getImageDepth ( <span class="methodparam">void )
Gets the image depth.
返回值
The image depth.
Imagick::getImageDispose
Gets the image disposal method
说明
public int <span class="methodname">Imagick::getImageDispose ( <span class="methodparam">void )
Gets the image disposal method.
返回值
Returns the dispose method on success.
错误/异常
错误时抛出 ImagickException。
Imagick::getImageDistortion
Compares an image to a reconstructed image
说明
public float
Imagick::getImageDistortion ( <span
class="methodparam">MagickWand
$reference
, <span
class="type">int $metric
)
Compares an image to a reconstructed image and returns the specified distortion metric.
参数
reference
Imagick object to compare to.
metric
One of the
metric type constants.
返回值
Returns the distortion metric used on the image (or the best guess thereof).
错误/异常
错误时抛出 ImagickException。
Imagick::getImageExtrema
Gets the extrema for the image
Warning
此函数在 Imagick 3.4.4 中被 废弃,强烈建议不要应用此函数。
说明
public array Imagick::getImageExtrema ( <span class="methodparam">void )
Gets the extrema for the image. Returns an associative array with the keys "min" and "max".
返回值
Returns an associative array with the keys "min" and "max".
错误/异常
错误时抛出 ImagickException。
Imagick::getImageFilename
Returns the filename of a particular image in a sequence
说明
public string Imagick::getImageFilename ( <span class="methodparam">void )
Returns the filename of a particular image in a sequence.
返回值
Returns a string with the filename of the image.
错误/异常
错误时抛出 ImagickException。
Imagick::getImageFormat
Returns the format of a particular image in a sequence
说明
public string Imagick::getImageFormat ( <span class="methodparam">void )
Returns the format of a particular image in a sequence.
返回值
Returns a string containing the image format on success.
错误/异常
错误时抛出 ImagickException。
Imagick::getImageGamma
Gets the image gamma
说明
public float Imagick::getImageGamma ( <span class="methodparam">void )
Gets the image gamma.
返回值
Returns the image gamma on success.
错误/异常
错误时抛出 ImagickException。
Imagick::getImageGeometry
Gets the width and height as an associative array
说明
public array Imagick::getImageGeometry ( <span class="methodparam">void )
Returns the width and height as an associative array.
返回值
Returns an array with the width/height of the image.
错误/异常
错误时抛出 ImagickException。
范例
示例 #1 Imagick::getImageGeometry
<?php
function getImageGeometry($imagePath) {
$imagick = new \Imagick(realpath($imagePath));
header("Content-Type: image/jpg");
echo $imagick->getImageBlob();
}
?>
Imagick::getImageGravity
Gets the image gravity
说明
public int <span class="methodname">Imagick::getImageGravity ( <span class="methodparam">void )
Gets the current gravity value of the image. Unlike <span class="function">Imagick::getGravity, this method returns the gravity defined for the current image sequence. 此方法在Imagick基于ImageMagick 6.4.4以上版本编译时可用。
返回值
Returns the images gravity property. Refer to the list of gravity constants.
Imagick::getImageGreenPrimary
Returns the chromaticy green primary point
说明
public array Imagick::getImageGreenPrimary ( <span class="methodparam">void )
Returns the chromaticity green primary point. Returns an array with the keys "x" and "y".
返回值
Returns an array with the keys "x" and "y" on success, throws an ImagickException on failure.
错误/异常
错误时抛出 ImagickException。
Imagick::getImageHeight
Returns the image height
说明
public int <span class="methodname">Imagick::getImageHeight ( <span class="methodparam">void )
Returns the image height.
返回值
Returns the image height in pixels.
错误/异常
错误时抛出 ImagickException。
Imagick::getImageHistogram
Gets the image histogram
说明
public array Imagick::getImageHistogram ( <span class="methodparam">void )
Returns the image histogram as an array of ImagickPixel objects.
返回值
Returns the image histogram as an array of ImagickPixel objects.
错误/异常
错误时抛出 ImagickException。
范例
示例 #1 Generates <span class="function">Imagick::getImageHistogram
<?php
function getColorStatistics($histogramElements, $colorChannel) {
$colorStatistics = [];
foreach ($histogramElements as $histogramElement) {
$color = $histogramElement->getColorValue($colorChannel);
$color = intval($color * 255);
$count = $histogramElement->getColorCount();
if (array_key_exists($color, $colorStatistics)) {
$colorStatistics[$color] += $count;
}
else {
$colorStatistics[$color] = $count;
}
}
ksort($colorStatistics);
return $colorStatistics;
}
function getImageHistogram($imagePath) {
$backgroundColor = 'black';
$draw = new \ImagickDraw();
$draw->setStrokeWidth(0); //make the lines be as thin as possible
$imagick = new \Imagick();
$imagick->newImage(500, 500, $backgroundColor);
$imagick->setImageFormat("png");
$imagick->drawImage($draw);
$histogramWidth = 256;
$histogramHeight = 100; // the height for each RGB segment
$imagick = new \Imagick(realpath($imagePath));
//Resize the image to be small, otherwise PHP tends to run out of memory
//This might lead to bad results for images that are pathologically 'pixelly'
$imagick->adaptiveResizeImage(200, 200, true);
$histogramElements = $imagick->getImageHistogram();
$histogram = new \Imagick();
$histogram->newpseudoimage($histogramWidth, $histogramHeight * 3, 'xc:black');
$histogram->setImageFormat('png');
$getMax = function ($carry, $item) {
if ($item > $carry) {
return $item;
}
return $carry;
};
$colorValues = [
'red' => getColorStatistics($histogramElements, \Imagick::COLOR_RED),
'lime' => getColorStatistics($histogramElements, \Imagick::COLOR_GREEN),
'blue' => getColorStatistics($histogramElements, \Imagick::COLOR_BLUE),
];
$max = array_reduce($colorValues['red'] , $getMax, 0);
$max = array_reduce($colorValues['lime'] , $getMax, $max);
$max = array_reduce($colorValues['blue'] , $getMax, $max);
$scale = $histogramHeight / $max;
$count = 0;
foreach ($colorValues as $color => $values) {
$draw->setstrokecolor($color);
$offset = ($count + 1) * $histogramHeight;
foreach ($values as $index => $value) {
$draw->line($index, $offset, $index, $offset - ($value * $scale));
}
$count++;
}
$histogram->drawImage($draw);
header( "Content-Type: image/png" );
echo $histogram;
}
?>
Imagick::getImageIndex
Gets the index of the current active image
Warning
此函数在 Imagick 3.4.4 中被 废弃,强烈建议不要应用此函数。
说明
public int <span class="methodname">Imagick::getImageIndex ( <span class="methodparam">void )
Returns the index of the current active image within the Imagick object. This method has been deprecated. See <span class="function">Imagick::getIteratorIndex.
返回值
Returns an integer containing the index of the image in the stack.
错误/异常
错误时抛出 ImagickException。
Imagick::getImageInterlaceScheme
Gets the image interlace scheme
说明
public int <span class="methodname">Imagick::getImageInterlaceScheme ( <span class="methodparam">void )
Gets the image interlace scheme.
返回值
Returns the interlace scheme as an integer on success. 错误时抛出 <span class="classname">ImagickException。
Imagick::getImageInterpolateMethod
Returns the interpolation method
说明
public int <span class="methodname">Imagick::getImageInterpolateMethod ( <span class="methodparam">void )
Returns the interpolation method for the specified image. The method is one of the *`Imagick::INTERPOLATE_`** constants.
返回值
Returns the interpolate method on success.
错误/异常
错误时抛出 ImagickException。
Imagick::getImageIterations
Gets the image iterations
说明
public int <span class="methodname">Imagick::getImageIterations ( <span class="methodparam">void )
Gets the image iterations.
返回值
Returns the image iterations as an integer.
错误/异常
错误时抛出 ImagickException。
Imagick::getImageLength
Returns the image length in bytes
说明
public int <span class="methodname">Imagick::getImageLength ( <span class="methodparam">void )
Returns the image length in bytes
返回值
Returns an int containing the current image size.
范例
示例 #1 Using <span class="function">Imagick::getImageLength:
Getting image length in bytes
<?php
$image = new Imagick('test.jpg');
echo $image->getImageLength() . ' bytes';
?>
Imagick::getImageMatte
Return if the image has a matte channel
Warning
此函数在 Imagick 3.4.4 中被 废弃,强烈建议不要应用此函数。
说明
public bool Imagick::getImageMatte ( <span class="methodparam">void )
Returns true
if the image has a matte channel otherwise false.
此方法在Imagick基于ImageMagick 6.2.9以上版本编译时可用。
返回值
成功时返回 true
。
Imagick::getImageMatteColor
Returns the image matte color
Warning
此函数在 Imagick 3.4.4 中被 废弃,强烈建议不要应用此函数。
说明
public <span class="type">ImagickPixel <span class="methodname">Imagick::getImageMatteColor ( <span class="methodparam">void )
Returns the image matte color.
返回值
Returns ImagickPixel object on success.
错误/异常
错误时抛出 ImagickException。
Imagick::getImageMimeType
Description
说明
public string Imagick::getImageMimeType ( <span class="methodparam">void )
Returns the image mime-type.
参数
此函数没有参数。
返回值
Imagick::getImageOrientation
Gets the image orientation
说明
public int <span class="methodname">Imagick::getImageOrientation ( <span class="methodparam">void )
Gets the image orientation. The return value is one of the orientation constants.
返回值
Returns an int on success.
错误/异常
错误时抛出 ImagickException。
Imagick::getImagePage
Returns the page geometry
说明
public array Imagick::getImagePage ( <span class="methodparam">void )
Returns the page geometry associated with the image in an array with the keys "width", "height", "x", and "y".
返回值
Returns the page geometry associated with the image in an array with the keys "width", "height", "x", and "y".
错误/异常
错误时抛出 ImagickException。
Imagick::getImagePixelColor
Returns the color of the specified pixel
说明
public <span
class="type">ImagickPixel <span
class="methodname">Imagick::getImagePixelColor ( <span
class="methodparam">int $x
, <span
class="methodparam">int $y
)
Returns the color of the specified pixel.
参数
x
The x-coordinate of the pixel
y
The y-coordinate of the pixel
返回值
Returns an ImagickPixel instance for the color at the coordinates given.
错误/异常
错误时抛出 ImagickException。
Imagick::getImageProfile
Returns the named image profile
说明
public string
Imagick::getImageProfile ( <span
class="methodparam">string $name
)
Returns the named image profile.
参数
name
The name of the profile to return.
返回值
Returns a string containing the image profile.
错误/异常
错误时抛出 ImagickException。
Imagick::getImageProfiles
Returns the image profiles
说明
public array
Imagick::getImageProfiles ([ <span
class="methodparam">string $pattern
<span
class="initializer"> = "*" [, <span
class="methodparam">bool
$include_values
= true
]] )
Returns all associated profiles that match the pattern. If false
is passed as second parameter only the profile names are returned.
此方法在Imagick基于ImageMagick 6.3.6以上版本编译时可用。
参数
pattern
The pattern for profile names.
include_values
Whether to return only profile names. If false
then only profile
names will be returned.
返回值
Returns an array containing the image profiles or profile names.
Imagick::getImageProperties
Returns the image properties
说明
public array
Imagick::getImageProperties ([ <span
class="methodparam">string $pattern
<span
class="initializer"> = "*" [, <span
class="methodparam">bool
$include_values
= true
]] )
Returns all associated properties that match the pattern. If false
is passed as second parameter only the property names are returned.
此方法在Imagick基于ImageMagick 6.3.6以上版本编译时可用。
参数
pattern
The pattern for property names.
include_values
Whether to return only property names. If false
then only property
names will be returned.
返回值
Returns an array containing the image properties or property names.
范例
示例 #1 Using <span class="function">Imagick::getImageProperties:
An example of extracting EXIF information.
<?php
/* Create the object */
$im = new imagick("/path/to/example.jpg");
/* Get the EXIF information */
$exifArray = $im->getImageProperties("exif:*");
/* Loop trough the EXIF properties */
foreach ($exifArray as $name => $property)
{
echo "{$name} => {$property}<br />\n";
}
?>
Imagick::getImageProperty
Returns the named image property
说明
public string
Imagick::getImageProperty ( <span
class="methodparam">string $name
)
Returns the named image property. 此方法在Imagick基于ImageMagick 6.3.2以上版本编译时可用。
参数
name
name of the property (for example Exif:DateTime)
范例
示例 #1 Using <span class="function">Imagick::getImageProperty:
Setting and getting image property
<?php
$image = new Imagick();
$image->newImage(300, 200, "black");
$image->setImageProperty('Exif:Make', 'Imagick');
echo $image->getImageProperty('Exif:Make');
?>
参见
- Imagick::setImageProperty
返回值
Returns a string containing the image property, false if a property with the given name does not exist.
Imagick::getImageRedPrimary
Returns the chromaticity red primary point
说明
public array Imagick::getImageRedPrimary ( <span class="methodparam">void )
Returns the chromaticity red primary point as an array with the keys "x" and "y".
返回值
Returns the chromaticity red primary point as an array with the keys "x" and "y". 错误时抛出 ImagickException。
错误/异常
错误时抛出 ImagickException。
Imagick::getImageRegion
Extracts a region of the image
说明
public Imagick
Imagick::getImageRegion ( <span
class="methodparam">int $width
,
int $height
, int $x
,
int $y
)
Extracts a region of the image and returns it as a new Imagick object.
参数
width
The width of the extracted region.
height
The height of the extracted region.
x
X-coordinate of the top-left corner of the extracted region.
y
Y-coordinate of the top-left corner of the extracted region.
返回值
Extracts a region of the image and returns it as a new wand.
错误/异常
错误时抛出 ImagickException。
Imagick::getImageRenderingIntent
Gets the image rendering intent
说明
public int <span class="methodname">Imagick::getImageRenderingIntent ( <span class="methodparam">void )
Gets the image rendering intent.
返回值
Returns the image rendering intent.
错误/异常
错误时抛出 ImagickException。
Imagick::getImageResolution
获取图像的x,y轴分辨率
说明
array <span class="methodname">Imagick::getImageResolution ( <span class="methodparam">void )
获取图像的x,y轴分辨率
返回值
返回分辨率值的数组
错误/异常
错误时抛出 ImagickException。
Imagick::getImagesBlob
Returns all image sequences as a blob
说明
public string Imagick::getImagesBlob ( <span class="methodparam">void )
Implements direct to memory image formats. It returns all image sequences as a string. The format of the image determines the format of the returned blob (GIF, JPEG, PNG, etc.). To return a different image format, use Imagick::setImageFormat().
返回值
Returns a string containing the images. On failure, throws ImagickException.
Imagick::getImageScene
Gets the image scene
说明
public int <span class="methodname">Imagick::getImageScene ( <span class="methodparam">void )
Gets the image scene.
返回值
Returns the image scene.
错误/异常
错误时抛出 ImagickException。
Imagick::getImageSignature
Generates an SHA-256 message digest
说明
public string Imagick::getImageSignature ( <span class="methodparam">void )
Generates an SHA-256 message digest for the image pixel stream.
返回值
Returns a string containing the SHA-256 hash of the file.
错误/异常
错误时抛出 ImagickException。
Imagick::getImageSize
Returns the image length in bytes
Warning
此函数在 Imagick 3.4.4 中被 废弃,强烈建议不要应用此函数。
说明
public int <span class="methodname">Imagick::getImageSize ( <span class="methodparam">void )
Returns the image length in bytes. Deprecated in favour of Imagick::getImageLength()
返回值
Returns an int containing the current image size.
Imagick::getImageTicksPerSecond
Gets the image ticks-per-second
说明
public int <span class="methodname">Imagick::getImageTicksPerSecond ( <span class="methodparam">void )
Gets the image ticks-per-second.
返回值
Returns the image ticks-per-second.
错误/异常
错误时抛出 ImagickException。
Imagick::getImageTotalInkDensity
Gets the image total ink density
说明
public float Imagick::getImageTotalInkDensity ( <span class="methodparam">void )
Gets the image total ink density.
返回值
Returns the image total ink density of the image. 错误时抛出 <span class="classname">ImagickException。
Imagick::getImageType
Gets the potential image type
说明
public int <span class="methodname">Imagick::getImageType ( <span class="methodparam">void )
Gets the potential image type.
返回值
Returns the potential image type.
-
imagick::IMGTYPE_UNDEFINED
-
imagick::IMGTYPE_BILEVEL
-
imagick::IMGTYPE_GRAYSCALE
-
imagick::IMGTYPE_GRAYSCALEMATTE
-
imagick::IMGTYPE_PALETTE
-
imagick::IMGTYPE_PALETTEMATTE
-
imagick::IMGTYPE_TRUECOLOR
-
imagick::IMGTYPE_TRUECOLORMATTE
-
imagick::IMGTYPE_COLORSEPARATION
-
imagick::IMGTYPE_COLORSEPARATIONMATTE
-
imagick::IMGTYPE_OPTIMIZE
错误/异常
错误时抛出 ImagickException。
Imagick::getImageUnits
获取图像的分辨率单位
说明
int <span class="methodname">Imagick::getImageUnits ( <span class="methodparam">void )
获取图像的分辨率单位。
返回值
返回分辨率的单位
错误/异常
错误时抛出 ImagickException。
Imagick::getImageVirtualPixelMethod
Returns the virtual pixel method
说明
public int <span class="methodname">Imagick::getImageVirtualPixelMethod ( <span class="methodparam">void )
Returns the virtual pixel method for the specified image.
返回值
Returns the virtual pixel method on success.
错误/异常
错误时抛出 ImagickException。
Imagick::getImageWhitePoint
Returns the chromaticity white point
说明
public array Imagick::getImageWhitePoint ( <span class="methodparam">void )
Returns the chromaticity white point as an associative array with the keys "x" and "y".
返回值
Returns the chromaticity white point as an associative array with the keys "x" and "y".
错误/异常
错误时抛出 ImagickException。
Imagick::getImageWidth
Returns the image width
说明
public int <span class="methodname">Imagick::getImageWidth ( <span class="methodparam">void )
Returns the image width.
返回值
Returns the image width.
错误/异常
错误时抛出 ImagickException。
Imagick::getInterlaceScheme
Gets the object interlace scheme
说明
public int <span class="methodname">Imagick::getInterlaceScheme ( <span class="methodparam">void )
Gets the object interlace scheme.
返回值
Gets the wand interlace scheme.
错误/异常
错误时抛出 ImagickException。
Imagick::getIteratorIndex
Gets the index of the current active image
说明
public int <span class="methodname">Imagick::getIteratorIndex ( <span class="methodparam">void )
Returns the index of the current active image within the Imagick object. 此方法在Imagick基于ImageMagick 6.2.9以上版本编译时可用。
返回值
Returns an integer containing the index of the image in the stack.
错误/异常
错误时抛出 ImagickException。
范例
示例 #1 Using <span class="function">Imagick::getIteratorIndex:
Create images, set and get the iterator index
<?php
$im = new Imagick();
$im->newImage(100, 100, new ImagickPixel("red"));
$im->newImage(100, 100, new ImagickPixel("green"));
$im->newImage(100, 100, new ImagickPixel("blue"));
$im->setIteratorIndex(1);
echo $im->getIteratorIndex();
?>
参见
- Imagick::setIteratorIndex
- Imagick::getImageIndex
- Imagick::setImageIndex
Imagick::getNumberImages
Returns the number of images in the object
说明
public int <span class="methodname">Imagick::getNumberImages ( <span class="methodparam">void )
Returns the number of images associated with Imagick object.
返回值
Returns the number of images associated with Imagick object.
错误/异常
错误时抛出 ImagickException。
Imagick::getOption
Returns a value associated with the specified key
说明
public string
Imagick::getOption ( <span
class="methodparam">string $key
)
Returns a value associated within the object for the specified key.
参数
key
The name of the option
返回值
Returns a value associated with a wand and the specified key.
错误/异常
错误时抛出 ImagickException。
Imagick::getPackageName
Returns the ImageMagick package name
说明
public <span class="modifier">static string <span class="methodname">Imagick::getPackageName ( <span class="methodparam">void )
Returns the ImageMagick package name.
返回值
Returns the ImageMagick package name as a string.
错误/异常
错误时抛出 ImagickException。
Imagick::getPage
Returns the page geometry
说明
public array Imagick::getPage ( <span class="methodparam">void )
Returns the page geometry associated with the Imagick object in an associative array with the keys "width", "height", "x", and "y".
返回值
Returns the page geometry associated with the Imagick object in an associative array with the keys "width", "height", "x", and "y", throwing ImagickException on error.
Imagick::getPixelIterator
Returns a MagickPixelIterator
说明
public <span class="type">ImagickPixelIterator <span class="methodname">Imagick::getPixelIterator ( <span class="methodparam">void )
Returns a MagickPixelIterator.
返回值
Returns an ImagickPixelIterator on success.
错误/异常
错误时抛出 ImagickException。
范例
示例 #1 Imagick::getPixelIterator
<?php
function getPixelIterator($imagePath) {
$imagick = new \Imagick(realpath($imagePath));
$imageIterator = $imagick->getPixelIterator();
foreach ($imageIterator as $row => $pixels) { /* Loop through pixel rows */
foreach ($pixels as $column => $pixel) { /* Loop through the pixels in the row (columns) */
/** @var $pixel \ImagickPixel */
if ($column % 2) {
$pixel->setColor("rgba(0, 0, 0, 0)"); /* Paint every second pixel black*/
}
}
$imageIterator->syncIterator(); /* Sync the iterator, this is important to do on each iteration */
}
header("Content-Type: image/jpg");
echo $imagick;
}
?>
Imagick::getPixelRegionIterator
Get an ImagickPixelIterator for an image section
说明
public <span
class="type">ImagickPixelIterator <span
class="methodname">Imagick::getPixelRegionIterator ( <span
class="methodparam">int $x
, <span
class="methodparam">int $y
, <span
class="methodparam">int $columns
,
int $rows
)
Get an ImagickPixelIterator for an image section.
参数
x
The x-coordinate of the region.
y
The y-coordinate of the region.
columns
The width of the region.
rows
The height of the region.
返回值
Returns an ImagickPixelIterator for an image section.
错误/异常
错误时抛出 ImagickException。
范例
示例 #1 <span class="methodname">Imagick::getPixelRegionIterator example
Iterate over the pixels in the top left of the image, changing them to be black.
<?php
$im = new Imagick(realpath("./testImage.png"));
$areaIterator = $im->getPixelRegionIterator(0, 0, 10, 10);
foreach ($areaIterator as $rowIterator) {
foreach ($rowIterator as $pixel) {
// Paint every pixel black
$pixel->setColor("rgba(0, 0, 0, 0)");
}
$areaIterator->syncIterator();
}
$im->writeImage("./output.png");
?>
Imagick::getPointSize
Gets point size
说明
public float Imagick::getPointSize ( <span class="methodparam">void )
Returns the objects point size property. 此方法在Imagick基于ImageMagick 6.3.7以上版本编译时可用。
返回值
Returns a float containing the point size.
参见
- Imagick::setPointSize
Imagick::getQuantum
Description
说明
public <span class="modifier">static int <span class="methodname">Imagick::getQuantum ( <span class="methodparam">void )
Returns the ImageMagick quantum range as an integer.
参数
此函数没有参数。
返回值
Imagick::getQuantumDepth
Gets the quantum depth
说明
public <span class="modifier">static array <span class="methodname">Imagick::getQuantumDepth ( <span class="methodparam">void )
Returns the Imagick quantum depth.
返回值
Returns an array with "quantumDepthLong" and "quantumDepthString" members.
错误/异常
错误时抛出 ImagickException。
Imagick::getQuantumRange
Returns the Imagick quantum range
说明
public <span class="modifier">static array <span class="methodname">Imagick::getQuantumRange ( <span class="methodparam">void )
Returns the quantum range for the Imagick instance.
返回值
Returns an associative array containing the quantum range as an <span class="type">int ("quantumRangeLong") and as a <span class="type">string ("quantumRangeString").
错误/异常
错误时抛出 ImagickException。
Imagick::getRegistry
Description
说明
public <span
class="modifier">static string <span
class="methodname">Imagick::getRegistry ( <span
class="methodparam">string $key
)
Get the StringRegistry entry for the named key or false if not set.
参数
key
The entry to get.
返回值
Imagick::getReleaseDate
Returns the ImageMagick release date
说明
public <span class="modifier">static string <span class="methodname">Imagick::getReleaseDate ( <span class="methodparam">void )
Returns the ImageMagick release date as a string.
返回值
Returns the ImageMagick release date as a string.
错误/异常
错误时抛出 ImagickException。
Imagick::getResource
Returns the specified resource's memory usage
说明
public <span
class="modifier">static int <span
class="methodname">Imagick::getResource ( <span
class="methodparam">int $type
)
Returns the specified resource's memory usage in megabytes.
参数
type
Refer to the list of
resourcetype constants.
返回值
Returns the specified resource's memory usage in megabytes.
错误/异常
错误时抛出 ImagickException。
Imagick::getResourceLimit
Returns the specified resource limit
说明
public <span
class="modifier">static int <span
class="methodname">Imagick::getResourceLimit ( <span
class="methodparam">int $type
)
Returns the specified resource limit.
参数
type
One of the
resourcetype constants.
The unit depends on the type of the resource being limited.
返回值
Returns the specified resource limit in megabytes.
错误/异常
错误时抛出 ImagickException。
参见
- Imagick::setResourceLimit
Imagick::getSamplingFactors
Gets the horizontal and vertical sampling factor
说明
public array Imagick::getSamplingFactors ( <span class="methodparam">void )
Gets the horizontal and vertical sampling factor.
返回值
Returns an associative array with the horizontal and vertical sampling factors of the image.
错误/异常
错误时抛出 ImagickException。
Imagick::getSize
Returns the size associated with the Imagick object
说明
public array Imagick::getSize ( <span class="methodparam">void )
Get the size in pixels associated with the Imagick object, previously set by Imagick::setSize.
Note:
This method just returns the size that was set using <span class="function">Imagick::setSize. If you want to get the actual width / height of the image, use <span class="function">Imagick::getImageWidth and <span class="function">Imagick::getImageHeight.
返回值
Returns the size associated with the Imagick object as an array with the keys "columns" and "rows".
范例
示例 #1 Getting the size of a raw RGB image set at 200x400, after scaling to 400x800 (compared to width / height)
<?php
//Set size first and then load the raw image
$img = new Imagick();
$img->setSize(200, 400);
$img->readImage("image.rgb");
$img->scaleImage(400, 800);
$size = $img->getSize();
print_r($size);
echo "$img->getImageWidth()."x".$img->getImageHeight();
?>
以上例程会输出:
Array
(
[columns] => 200
[rows] => 400
)
400x800
Imagick::getSizeOffset
Returns the size offset
说明
public int <span class="methodname">Imagick::getSizeOffset ( <span class="methodparam">void )
Returns the size offset associated with the Imagick object. 此方法在Imagick基于ImageMagick 6.2.9以上版本编译时可用。
返回值
Returns the size offset associated with the Imagick object.
错误/异常
错误时抛出 ImagickException。
Imagick::getVersion
Returns the ImageMagick API version
说明
public <span class="modifier">static array <span class="methodname">Imagick::getVersion ( <span class="methodparam">void )
Returns the ImageMagick API version as a string and as a number.
返回值
Returns the ImageMagick API version as a string and as a number.
错误/异常
错误时抛出 ImagickException。
Imagick::haldClutImage
Replaces colors in the image
说明
public bool
Imagick::haldClutImage ( <span
class="methodparam">Imagick $clut
[,
int $channel
<span
class="initializer"> = Imagick::CHANNEL_DEFAULT ] )
Replaces colors in the image using a Hald lookup table. Hald images can be created using HALD color coder.
参数
clut
Imagick object containing the Hald lookup image.
channel
Provide any channel constant that is valid for your channel mode. To
apply to more than one channel, combine
channel constants
using bitwise operators. 缺省为Imagick::CHANNEL_DEFAULT
. 参考此
通道常数列表
返回值
成功时返回 true
。
错误/异常
错误时抛出 ImagickException。
范例
示例 #1 Imagick::haldClutImage
<?php
function haldClutImage($imagePath) {
$imagick = new \Imagick(realpath($imagePath));
$imagickPalette = new \Imagick(realpath("images/hald/hald_8.png"));
$imagickPalette->sepiatoneImage(55);
$imagick->haldClutImage($imagickPalette);
header("Content-Type: image/jpg");
echo $imagick->getImageBlob();
}
?>
Imagick::hasNextImage
Checks if the object has more images
说明
public bool Imagick::hasNextImage ( <span class="methodparam">void )
Returns true
if the object has more images when traversing the
list in the forward direction.
返回值
Returns true
if the object has more images when traversing the
list in the forward direction, returns false
if there are none.
Imagick::hasPreviousImage
Checks if the object has a previous image
说明
public bool Imagick::hasPreviousImage ( <span class="methodparam">void )
Returns true
if the object has more images when traversing the
list in the reverse direction
返回值
Returns true
if the object has more images when traversing the
list in the reverse direction, returns false
if there are none.
Imagick::identifyFormat
Description
说明
public <span
class="type">stringfalse <span
class="methodname">Imagick::identifyFormat ( <span
class="methodparam">string $embedText
)
Replaces any embedded formatting characters with the appropriate image property and returns the interpreted text. See http://www.imagemagick.org/script/escape.php for escape sequences.
参数
embedText
A string containing formatting sequences e.g. "Trim box: %@ number of
unique colors: %k".
返回值
Returns format 或者在失败时返回 false
.
范例
示例 #1 Imagick::identifyFormat
<?php
$output = "Output of 'Trim box: %@ number of unique colors: %k' is: <br/>";
$imagick = new \Imagick(realpath("./images/artifact/mask.png"));
$output .= $imagick->identifyFormat("Trim box: %@ number of unique colors: %k");
?>
Imagick::identifyImage
Identifies an image and fetches attributes
说明
public array
Imagick::identifyImage ([ <span
class="methodparam">bool
$appendRawOutput
= false
] )
Identifies an image and returns the attributes. Attributes include the image width, height, size, and others.
参数
appendRawOutput
If true
then the raw output is appended to the array.
返回值
Identifies an image and returns the attributes. Attributes include the image width, height, size, and others.
示例 #1 Example Result Format
Array
(
[imageName] => /some/path/image.jpg
[format] => JPEG (Joint Photographic Experts Group JFIF format)
[geometry] => Array
(
[width] => 90
[height] => 90
)
[type] => TrueColor
[colorSpace] => RGB
[resolution] => Array
(
[x] => 300
[y] => 300
)
[units] => PixelsPerInch
[fileSize] => 1.88672kb
[compression] => JPEG
[signature] => 9a6dc8f604f97d0d691c0286176ddf992e188f0bebba98494b2146ee2d7118da
)
错误/异常
错误时抛出 ImagickException。
Imagick::implodeImage
Creates a new image as a copy
说明
public bool
Imagick::implodeImage ( <span
class="methodparam">float $radius
)
Creates a new image that is a copy of an existing one with the image pixels "imploded" by the specified percentage.
参数
radius
The radius of the implode
返回值
成功时返回 true
。
错误/异常
错误时抛出 ImagickException。
范例
示例 #1 Imagick::implodeImage
<?php
function implodeImage($imagePath) {
$imagick = new \Imagick(realpath($imagePath));
$imagick->implodeImage(0.0001);
header("Content-Type: image/jpg");
echo $imagick->getImageBlob();
}
?>
Imagick::importImagePixels
Imports image pixels
说明
public bool
Imagick::importImagePixels ( <span
class="methodparam">int $x
, <span
class="methodparam">int $y
, <span
class="methodparam">int $width
,
int $height
, string
$map
, int
$storage
, <span
class="type">array $pixels
)
Imports pixels from an array into an image. The map
is usually 'RGB'.
This method imposes the following constraints for the parameters: amount
of pixels in the array must match width
x height
x length of the
map. 此方法在Imagick基于ImageMagick 6.4.5以上版本编译时可用。
参数
x
The image x position
y
The image y position
width
The image width
height
The image height
map
Map of pixel ordering as a string. This can be for example RGB. The
value can be any combination or order of R = red, G = green, B = blue, A
= alpha (0 is transparent), O = opacity (0 is opaque), C = cyan, Y =
yellow, M = magenta, K = black, I = intensity (for grayscale), P = pad.
storage
The pixel storage method. Refer to this list of
pixel constants.
pixels
The array of pixels
返回值
成功时返回 true
。
错误/异常
错误时抛出 ImagickException。
范例
示例 #1 Imagick::importImagePixels example
<?php
/* Generate array of pixels. 2000 pixels per color stripe */
$count = 2000 * 3;
$pixels =
array_merge(array_pad(array(), $count, 0),
array_pad(array(), $count, 255),
array_pad(array(), $count, 0),
array_pad(array(), $count, 255),
array_pad(array(), $count, 0));
/* Width and height. The area is amount of pixels divided
by three. Three comes from 'RGB', three values per pixel */
$width = $height = pow((count($pixels) / 3), 0.5);
/* Create empty image */
$im = new Imagick();
$im->newImage($width, $height, 'gray');
/* Import the pixels into image.
width * height * strlen("RGB") must match count($pixels) */
$im->importImagePixels(0, 0, $width, $height, "RGB", Imagick::PIXEL_CHAR, $pixels);
/* output as jpeg image */
$im->setImageFormat('jpg');
header("Content-Type: image/jpg");
echo $im;
?>
以上例程的输出类似于:
Imagick::inverseFourierTransformImage
Description
说明
public bool
Imagick::inverseFourierTransformImage (
Imagick
$complement
, <span
class="type">bool $magnitude
)
Implements the inverse discrete Fourier transform (DFT) of the image either as a magnitude / phase or real / imaginary image pair.
Warning
本函数还未编写文档,仅有参数列表。
参数
complement
The second image to combine with this one to form either the magnitude /
phase or real / imaginary image pair.
magnitude
If true, combine as magnitude / phase pair otherwise a real / imaginary
image pair.
返回值
成功时返回 true
。
Imagick::labelImage
Adds a label to an image
说明
public bool
Imagick::labelImage ( <span
class="methodparam">string $label
)
Adds a label to an image.
参数
label
The label to add
返回值
成功时返回 true
。
Imagick::levelImage
Adjusts the levels of an image
说明
public bool
Imagick::levelImage ( <span
class="methodparam">float $blackPoint
, float
$gamma
, <span
class="type">float $whitePoint
[, <span
class="methodparam">int $channel
<span
class="initializer"> = Imagick::CHANNEL_DEFAULT ] )
Adjusts the levels of an image by scaling the colors falling between specified white and black points to the full available quantum range. The parameters provided represent the black, mid, and white points. The black point specifies the darkest color in the image. Colors darker than the black point are set to zero. Mid point specifies a gamma correction to apply to the image. White point specifies the lightest color in the image. Colors brighter than the white point are set to the maximum quantum value.
参数
blackPoint
The image black point
gamma
The gamma value
whitePoint
The image white point
channel
Provide any channel constant that is valid for your channel mode. To
apply to more than one channel, combine channeltype constants using
bitwise operators. Refer to this list of
channel constants.
返回值
成功时返回 true
。
错误/异常
错误时抛出 ImagickException。
范例
示例 #1 Imagick::levelImage
<?php
function levelImage($blackPoint, $gamma, $whitePoint) {
$imagick = new \Imagick();
$imagick->newPseudoimage(500, 500, 'gradient:black-white');
$imagick->setFormat('png');
$quantum = $imagick->getQuantum();
$imagick->levelImage($blackPoint / 100 , $gamma, $quantum * $whitePoint / 100);
header("Content-Type: image/png");
echo $imagick->getImageBlob();
}
?>
Imagick::linearStretchImage
Stretches with saturation the image intensity
说明
public bool
Imagick::linearStretchImage ( <span
class="methodparam">float $blackPoint
, float
$whitePoint
)
Stretches with saturation the image intensity.
参数
blackPoint
The image black point
whitePoint
The image white point
返回值
成功时返回 true
。
范例
示例 #1 Imagick::linearStretchImage
<?php
function linearStretchImage($imagePath, $blackThreshold, $whiteThreshold) {
$imagick = new \Imagick(realpath($imagePath));
$pixels = $imagick->getImageWidth() * $imagick->getImageHeight();
$imagick->linearStretchImage($blackThreshold * $pixels, $whiteThreshold * $pixels);
header("Content-Type: image/jpg");
echo $imagick->getImageBlob();
}
?>
Imagick::liquidRescaleImage
Animates an image or images
说明
public bool
Imagick::liquidRescaleImage ( <span
class="methodparam">int $width
,
int $height
, float
$delta_x
, <span
class="type">float $rigidity
)
This method scales the images using liquid rescaling method. This method is an implementation of a technique called seam carving. In order for this method to work as expected ImageMagick must be compiled with liblqr support. 此方法在Imagick基于ImageMagick 6.3.9以上版本编译时可用。
参数
width
The width of the target size
height
The height of the target size
delta_x
How much the seam can traverse on x-axis. Passing 0 causes the seams to
be straight.
rigidity
Introduces a bias for non-straight seams. This parameter is typically 0.
返回值
成功时返回 true
。
参见
- Imagick::resizeImage
Imagick::listRegistry
Description
说明
public <span class="modifier">static array <span class="methodname">Imagick::listRegistry ( <span class="methodparam">void )
List all the registry settings. Returns an array of all the key/value pairs in the registry
参数
此函数没有参数。
返回值
An array containing the key/values from the registry.
Imagick::magnifyImage
Scales an image proportionally 2x
说明
public bool Imagick::magnifyImage ( <span class="methodparam">void )
Is a convenience method that scales an image proportionally to twice its original size.
返回值
成功时返回 true
。
错误/异常
错误时抛出 ImagickException。
范例
示例 #1 Imagick::magnifyImage
<?php
function magnifyImage($imagePath) {
$imagick = new \Imagick(realpath($imagePath));
$imagick->magnifyImage();
header("Content-Type: image/jpg");
echo $imagick->getImageBlob();
}
?>
Imagick::mapImage
Replaces the colors of an image with the closest color from a reference image
Warning
此函数在 Imagick 3.4.4 中被 废弃,强烈建议不要应用此函数。
说明
public bool
Imagick::mapImage ( <span
class="methodparam">Imagick $map
,
bool
$dither
)
参数
map
dither
返回值
成功时返回 true
。
错误/异常
错误时抛出 ImagickException。
Imagick::matteFloodfillImage
Changes the transparency value of a color
Warning
此函数在 Imagick 3.4.4 中被 废弃,强烈建议不要应用此函数。
说明
public bool
Imagick::matteFloodfillImage ( <span
class="methodparam">float $alpha
,
float $fuzz
, mixed
$bordercolor
, <span
class="type">int $x
, <span
class="type">int $y
)
Changes the transparency value of any pixel that matches target and is
an immediate neighbor. If the method FillToBorderMethod
is
specified, the transparency value is changed for any neighbor pixel that
does not match the bordercolor member of image.
参数
alpha
The level of transparency: 1.0 is fully opaque and 0.0 is fully
transparent.
fuzz
The fuzz member of image defines how much tolerance is acceptable to
consider two colors as the same.
bordercolor
An ImagickPixel object or string
representing the border color.
x
The starting x coordinate of the operation.
y
The starting y coordinate of the operation.
返回值
成功时返回 true
。
错误/异常
错误时抛出 ImagickException。
更新日志
版本 | 说明 |
---|---|
PECL imagick 2.1.0 | Now allows a string representing the color as the third parameter. Previous versions allow only an ImagickPixel object. |
Imagick::medianFilterImage
Applies a digital filter
Warning
此函数在 Imagick 3.4.4 中被 废弃,强烈建议不要应用此函数。
说明
public bool
Imagick::medianFilterImage ( <span
class="methodparam">float $radius
)
Applies a digital filter that improves the quality of a noisy image. Each pixel is replaced by the median in a set of neighboring pixels as defined by radius.
参数
radius
The radius of the pixel neighborhood.
返回值
成功时返回 true
。
错误/异常
错误时抛出 ImagickException。
范例
示例 #1 Imagick::medianFilterImage
<?php
function medianFilterImage($radius, $imagePath) {
$imagick = new \Imagick(realpath($imagePath));
@$imagick->medianFilterImage($radius);
header("Content-Type: image/jpg");
echo $imagick->getImageBlob();
}
?>
Imagick::mergeImageLayers
Merges image layers
说明
public Imagick
Imagick::mergeImageLayers ( <span
class="methodparam">int $layer_method
)
Merges image layers into one. This method is useful when working with
image formats that use multiple layers such as PSD. The merging is
controlled using the layer_method
which defines how the layers are
merged. 此方法在Imagick基于ImageMagick 6.3.7以上版本编译时可用。
参数
layer_method
One of the *`Imagick::LAYERMETHOD_`** constants
返回值
Returns an Imagick object containing the merged image.
错误/异常
错误时抛出 ImagickException。
参见
- Imagick::flattenImages
范例
示例 #1 Imagick::mergeImageLayers
<?php
function mergeImageLayers($layerMethodType, $imagePath1, $imagePath2) {
$imagick = new \Imagick(realpath($imagePath));
$imagick2 = new \Imagick(realpath($imagePath2));
$imagick->addImage($imagick2);
$imagick->setImageFormat('png');
$result = $imagick->mergeImageLayers($layerMethodType);
header("Content-Type: image/png");
echo $result->getImageBlob();
}
?>
Imagick::minifyImage
Scales an image proportionally to half its size
说明
public bool Imagick::minifyImage ( <span class="methodparam">void )
Is a convenience method that scales an image proportionally to one-half its original size
返回值
成功时返回 true
。
Imagick::modulateImage
Control the brightness, saturation, and hue
说明
public bool
Imagick::modulateImage ( <span
class="methodparam">float $brightness
, float
$saturation
, <span
class="type">float $hue
)
Lets you control the brightness, saturation, and hue of an image. Hue is the percentage of absolute rotation from the current position. For example 50 results in a counter-clockwise rotation of 90 degrees, 150 results in a clockwise rotation of 90 degrees, with 0 and 200 both resulting in a rotation of 180 degrees.
参数
brightness
saturation
hue
返回值
成功时返回 true
。
范例
示例 #1 Imagick::modulateImage
<?php
function modulateImage($imagePath, $hue, $brightness, $saturation) {
$imagick = new \Imagick(realpath($imagePath));
$imagick->modulateImage($brightness, $saturation, $hue);
header("Content-Type: image/jpg");
echo $imagick->getImageBlob();
}
?>
Imagick::montageImage
Creates a composite image
说明
public Imagick
Imagick::montageImage ( <span
class="methodparam">ImagickDraw $draw
, string
$tile_geometry
, <span
class="type">string $thumbnail_geometry
, <span
class="methodparam">int $mode
, <span
class="methodparam">string $frame
)
Creates a composite image by combining several separate images. The images are tiled on the composite image with the name of the image optionally appearing just below the individual tile.
参数
draw
The font name, size, and color are obtained from this object.
tile_geometry
The number of tiles per row and page (e.g. 6x4+0+0).
thumbnail_geometry
Preferred image size and border size of each thumbnail (e.g.
120x120+4+3>).
mode
Thumbnail framing mode, see
Montage Mode constants.
frame
Surround the image with an ornamental border (e.g. 15x15+3+3). The frame
color is that of the thumbnail's matte color.
返回值
成功时返回 true
。
Imagick::morphImages
Method morphs a set of images
说明
public Imagick
Imagick::morphImages ( <span
class="methodparam">int
$number_frames
)
Method morphs a set of images. Both the image pixels and size are linearly interpolated to give the appearance of a meta-morphosis from one image to the next.
参数
number_frames
The number of in-between images to generate.
返回值
This method returns a new Imagick object on success. 错误时抛出 <span class="classname">ImagickException。
Imagick::morphology
Description
说明
public bool
Imagick::morphology ( <span
class="methodparam">int
$morphologyMethod
, <span
class="type">int $iterations
, <span
class="methodparam">ImagickKernel
$ImagickKernel
[, <span
class="type">int $channel
=
Imagick::CHANNEL_DEFAULT ] )
Applies a user supplied kernel to the image according to the given morphology method.
参数
morphologyMethod
Which morphology method to use one of the \Imagick::MORPHOLOGY_*
constants.
iterations
The number of iteration to apply the morphology function. A value of -1
means loop until no change found. How this is applied may depend on the
morphology method. Typically this is a value of 1.
ImagickKernel
channel
返回值
成功时返回 true
。
范例
示例 #1 Convolve Imagick::morphology
<?php
$imagick = $this->getCharacter();
$kernel = \ImagickKernel::fromBuiltIn(\Imagick::KERNEL_GAUSSIAN, "5,1");
$imagick->morphology(\Imagick::MORPHOLOGY_CONVOLVE, 2, $kernel);
header("Content-Type: image/png");
echo $imagick->getImageBlob();
?>
示例 #2 Correlate Imagick::morphology
<?php
// Top-left pixel must be black
// Bottom right pixel must be white
// We don't care about the rest.
$imagick = $this->getCharacterOutline();
$kernel = \ImagickKernel::fromMatrix(self::$correlateMatrix, [2, 2]);
$imagick->morphology(\Imagick::MORPHOLOGY_CORRELATE, 1, $kernel);
header("Content-Type: image/png");
echo $imagick->getImageBlob();
?>
示例 #3 Erode Imagick::morphology
<?php
$canvas = $this->getCharacterOutline();
$kernel = \ImagickKernel::fromBuiltIn(\Imagick::KERNEL_OCTAGON, "3");
$canvas->morphology(\Imagick::MORPHOLOGY_ERODE, 2, $kernel);
header("Content-Type: image/png");
echo $canvas->getImageBlob();
?>
示例 #4 Erode Intensity <span class="function">Imagick::morphology
<?php
$canvas = $this->getCharacter();
$kernel = \ImagickKernel::fromBuiltIn(\Imagick::KERNEL_OCTAGON, "1");
$canvas->morphology(\Imagick::MORPHOLOGY_ERODE_INTENSITY, 2, $kernel);
header("Content-Type: image/png");
echo $canvas->getImageBlob();
?>
示例 #5 Dilate Imagick::morphology
<?php
$canvas = $this->getCharacterOutline();
$kernel = \ImagickKernel::fromBuiltIn(\Imagick::KERNEL_OCTAGON, "3");
$canvas->morphology(\Imagick::MORPHOLOGY_DILATE, 4, $kernel);
header("Content-Type: image/png");
echo $canvas->getImageBlob();
?>
示例 #6 Dilate intensity <span class="function">Imagick::morphology
<?php
$canvas = $this->getCharacter();
$kernel = \ImagickKernel::fromBuiltIn(\Imagick::KERNEL_OCTAGON, "1");
$canvas->morphology(\Imagick::MORPHOLOGY_DILATE_INTENSITY, 4, $kernel);
header("Content-Type: image/png");
echo $canvas->getImageBlob();
?>
示例 #7 Distance with Chebyshev kernel <span class="function">Imagick::morphology
<?php
$canvas = $this->getCharacterOutline();
$kernel = \ImagickKernel::fromBuiltIn(\Imagick::KERNEL_CHEBYSHEV, "3");
$canvas->morphology(\Imagick::MORPHOLOGY_DISTANCE, 3, $kernel);
$canvas->autoLevelImage();
header("Content-Type: image/png");
echo $canvas->getImageBlob();
?>
示例 #8 Distance with Manhattan kernel <span class="function">Imagick::morphology
<?php
$canvas = $this->getCharacterOutline();
$kernel = \ImagickKernel::fromBuiltIn(\Imagick::KERNEL_MANHATTAN, "5");
$canvas->morphology(\Imagick::MORPHOLOGY_DISTANCE, 3, $kernel);
$canvas->autoLevelImage();
header("Content-Type: image/png");
echo $canvas->getImageBlob();
?>
示例 #9 Distance with ocatagonal kernel <span class="function">Imagick::morphology
<?php
$canvas = $this->getCharacterOutline();
$kernel = \ImagickKernel::fromBuiltIn(\Imagick::KERNEL_OCTAGONAL, "5");
$canvas->morphology(\Imagick::MORPHOLOGY_DISTANCE, 3, $kernel);
$canvas->autoLevelImage();
header("Content-Type: image/png");
echo $canvas->getImageBlob();
?>
示例 #10 Distance with Euclidean kernel <span class="function">Imagick::morphology
<?php
$canvas = $this->getCharacterOutline();
$kernel = \ImagickKernel::fromBuiltIn(\Imagick::KERNEL_EUCLIDEAN, "4");
$canvas->morphology(\Imagick::MORPHOLOGY_DISTANCE, 3, $kernel);
$canvas->autoLevelImage();
header("Content-Type: image/png");
echo $canvas->getImageBlob();
?>
示例 #11 Edge Imagick::morphology
<?php
$canvas = $this->getCharacterOutline();
$kernel = \ImagickKernel::fromBuiltIn(\Imagick::KERNEL_OCTAGON, "3");
$canvas->morphology(\Imagick::MORPHOLOGY_EDGE, 1, $kernel);
header("Content-Type: image/png");
echo $canvas->getImageBlob();
?>
示例 #12 Open Imagick::morphology
<?php
// As a result you will see that 'Open' smoothed the outline, by rounding off any sharp points, and remove any parts that is smaller than the shape used. It will also disconnect or 'open' any thin bridges.
$canvas = $this->getCharacterOutline();
$kernel = \ImagickKernel::fromBuiltIn(\Imagick::KERNEL_DISK, "6");
$canvas->morphology(\Imagick::MORPHOLOGY_OPEN, 1, $kernel);
header("Content-Type: image/png");
echo $canvas->getImageBlob();
?>
示例 #13 Open intensity <span class="function">Imagick::morphology
<?php
// As a result you will see that 'Open' smoothed the outline, by rounding off any sharp points, and remove any parts that is smaller than the shape used. It will also disconnect or 'open' any thin bridges.
$canvas = $this->getCharacter();
$kernel = \ImagickKernel::fromBuiltIn(\Imagick::KERNEL_DISK, "6");
$canvas->morphology(\Imagick::MORPHOLOGY_OPEN_INTENSITY, 1, $kernel);
header("Content-Type: image/png");
echo $canvas->getImageBlob();
?>
示例 #14 Close Imagick::morphology
<?php
//The basic use of the 'Close' method is to reduce or remove any 'holes' or 'gaps' about the size of the kernel 'Structure Element'. That is 'close' parts of the background that are about that size.
$canvas = $this->getCharacterOutline();
$kernel = \ImagickKernel::fromBuiltIn(\Imagick::KERNEL_DISK, "6");
$canvas->morphology(\Imagick::MORPHOLOGY_CLOSE, 1, $kernel);
header("Content-Type: image/png");
echo $canvas->getImageBlob();
?>
示例 #15 Close Intensity <span class="function">Imagick::morphology
<?php
//The basic use of the 'Close' method is to reduce or remove any 'holes' or 'gaps' about the size of the kernel 'Structure Element'. That is 'close' parts of the background that are about that size.
$canvas = $this->getCharacter();
$kernel = \ImagickKernel::fromBuiltIn(\Imagick::KERNEL_DISK, "6");
$canvas->morphology(\Imagick::MORPHOLOGY_CLOSE_INTENSITY, 1, $kernel);
header("Content-Type: image/png");
echo $canvas->getImageBlob();
?>
示例 #16 Smooth Imagick::morphology
<?php
$canvas = $this->getCharacterOutline();
$kernel = \ImagickKernel::fromBuiltIn(\Imagick::KERNEL_OCTAGON, "3");
$canvas->morphology(\Imagick::MORPHOLOGY_SMOOTH, 1, $kernel);
header("Content-Type: image/png");
echo $canvas->getImageBlob();
?>
示例 #17 Edge in Imagick::morphology
<?php
$canvas = $this->getCharacterOutline();
$kernel = \ImagickKernel::fromBuiltIn(\Imagick::KERNEL_OCTAGON, "3");
$canvas->morphology(\Imagick::MORPHOLOGY_EDGE_IN, 1, $kernel);
header("Content-Type: image/png");
echo $canvas->getImageBlob();
?>
示例 #18 Edge out Imagick::morphology
<?php
$canvas = $this->getCharacterOutline();
$kernel = \ImagickKernel::fromBuiltIn(\Imagick::KERNEL_OCTAGON, "3");
$canvas->morphology(\Imagick::MORPHOLOGY_EDGE_OUT, 1, $kernel);
header("Content-Type: image/png");
echo $canvas->getImageBlob();
?>
示例 #19 The 'TopHat' method, or more specifically 'White Top Hat', returns the pixels that were removed by a Opening of the shape, that is the pixels that were removed to round off the points, and the connecting bridged between shapes. <span class="function">Imagick::morphology
<?php
$canvas = $this->getCharacterOutline();
$kernel = \ImagickKernel::fromBuiltIn(\Imagick::KERNEL_DISK, "5");
$canvas->morphology(\Imagick::MORPHOLOGY_TOP_HAT, 1, $kernel);
header("Content-Type: image/png");
echo $canvas->getImageBlob();
?>
示例 #20 The 'BottomHat' method, also known as 'Black TopHat' is the pixels that a Closing of the shape adds to the image. That is the pixels that were used to fill in the 'holes', 'gaps', and 'bridges'. <span class="function">Imagick::morphology
<?php
$canvas = $this->getCharacterOutline();
$kernel = \ImagickKernel::fromBuiltIn(\Imagick::KERNEL_DISK, "5");
$canvas->morphology(\Imagick::MORPHOLOGY_BOTTOM_HAT, 1, $kernel);
header("Content-Type: image/png");
echo $canvas->getImageBlob();
?>
示例 #21 Hit and Miss <span class="function">Imagick::morphology
<?php
$canvas = $this->getCharacterOutline();
//This finds all the pixels with 3 pixels of the right edge
$matrix = [[1, false, false, 0]];
$kernel = \ImagickKernel::fromMatrix(
$matrix,
[0, 0]
);
$canvas->morphology(\Imagick::MORPHOLOGY_HIT_AND_MISS, 1, $kernel);
header("Content-Type: image/png");
echo $canvas->getImageBlob();
?>
示例 #22 Thinning Imagick::morphology
<?php
$canvas = $this->getCharacterOutline();
$leftEdgeKernel = \ImagickKernel::fromMatrix([[0, 1]], [1, 0]);
$rightEdgeKernel = \ImagickKernel::fromMatrix([[1, 0]], [0, 0]);
$leftEdgeKernel->addKernel($rightEdgeKernel);
$canvas->morphology(\Imagick::MORPHOLOGY_THINNING, 3, $leftEdgeKernel);
header("Content-Type: image/png");
echo $canvas->getImageBlob();
?>
示例 #23 Thicken Imagick::morphology
<?php
$canvas = $this->getCharacterOutline();
$leftEdgeKernel = \ImagickKernel::fromMatrix([[0, 1]], [1, 0]);
$rightEdgeKernel = \ImagickKernel::fromMatrix([[1, 0]], [0, 0]);
$leftEdgeKernel->addKernel($rightEdgeKernel);
$canvas->morphology(\Imagick::MORPHOLOGY_THICKEN, 3, $leftEdgeKernel);
header("Content-Type: image/png");
echo $canvas->getImageBlob();
?>
示例 #24 Thick to generate a convex hull <span class="function">Imagick::morphology
<?php
$canvas = $this->getCharacterOutline();
$diamondKernel = \ImagickKernel::fromBuiltIn(\Imagick::KERNEL_DIAMOND, "1");
$convexKernel = \ImagickKernel::fromBuiltIn(\Imagick::KERNEL_CONVEX_HULL, "");
// The thicken morphology doesn't handle small gaps. We close them
// with the close morphology.
$canvas->morphology(\Imagick::MORPHOLOGY_CLOSE, 1, $diamondKernel);
$canvas->morphology(\Imagick::MORPHOLOGY_THICKEN, -1, $convexKernel);
$canvas->morphology(\Imagick::MORPHOLOGY_CLOSE, 1, $diamondKernel);
header("Content-Type: image/png");
echo $canvas->getImageBlob();
?>
示例 #25 Iterative morphology <span class="function">Imagick::morphology
<?php
$canvas = $this->getCharacterOutline();
$kernel = \ImagickKernel::fromBuiltIn(\Imagick::KERNEL_DISK, "2");
$canvas->morphology(\Imagick::MORPHOLOGY_ITERATIVE, 3, $kernel);
$canvas->autoLevelImage();
header("Content-Type: image/png");
echo $canvas->getImageBlob();
?>
示例 #26 Helper functon to get an image silhouette <span class="function">Imagick::morphology
<?php
private function getCharacterOutline() {
$imagick = new \Imagick(realpath("./images/character.png"));
$character = new \Imagick();
$character->newPseudoImage(
$imagick->getImageWidth(),
$imagick->getImageHeight(),
"canvas:white"
);
$canvas = new \Imagick();
$canvas->newPseudoImage(
$imagick->getImageWidth(),
$imagick->getImageHeight(),
"canvas:black"
);
$character->compositeimage(
$imagick,
\Imagick::COMPOSITE_COPYOPACITY,
0, 0
);
$canvas->compositeimage(
$character,
\Imagick::COMPOSITE_ATOP,
0, 0
);
$canvas->setFormat('png');
return $canvas;
}
?>
Imagick::mosaicImages
Forms a mosaic from images
Warning
此函数在 Imagick 3.4.4 中被 废弃,强烈建议不要应用此函数。
说明
public Imagick Imagick::mosaicImages ( <span class="methodparam">void )
Inlays an image sequence to form a single coherent picture. It returns a wand with each image in the sequence composited at the location defined by the page offset of the image.
返回值
成功时返回 true
。
Imagick::motionBlurImage
Simulates motion blur
说明
public bool
Imagick::motionBlurImage ( <span
class="methodparam">float $radius
,
float
$sigma
, <span
class="type">float $angle
[, <span
class="methodparam">int $channel
<span
class="initializer"> = Imagick::CHANNEL_DEFAULT ] )
Simulates motion blur. We convolve the image with a Gaussian operator of the given radius and standard deviation (sigma). For reasonable results, radius should be larger than sigma. Use a radius of 0 and MotionBlurImage() selects a suitable radius for you. Angle gives the angle of the blurring motion.
参数
radius
The radius of the Gaussian, in pixels, not counting the center pixel.
sigma
The standard deviation of the Gaussian, in pixels.
angle
Apply the effect along this angle.
channel
Provide any channel constant that is valid for your channel mode. To
apply to more than one channel, combine channeltype constants using
bitwise operators. Refer to this list of
channel constants.
The channel argument affects only if Imagick is compiled against
ImageMagick version 6.4.4 or greater.
返回值
成功时返回 true
。
范例
示例 #1 Imagick::motionBlurImage
<?php
function motionBlurImage($imagePath, $radius, $sigma, $angle, $channel) {
$imagick = new \Imagick(realpath($imagePath));
$imagick->motionBlurImage($radius, $sigma, $angle, $channel);
header("Content-Type: image/jpg");
echo $imagick->getImageBlob();
}
?>
Imagick::negateImage
Negates the colors in the reference image
说明
public bool
Imagick::negateImage ( <span
class="methodparam">bool $gray
[,
int $channel
<span
class="initializer"> = Imagick::CHANNEL_DEFAULT ] )
Negates the colors in the reference image. The Grayscale option means that only grayscale values within the image are negated.
参数
gray
Whether to only negate grayscale pixels within the image.
channel
Provide any channel constant that is valid for your channel mode. To
apply to more than one channel, combine channeltype constants using
bitwise operators. Refer to this list of
channel constants.
返回值
成功时返回 true
。
错误/异常
错误时抛出 ImagickException。
范例
示例 #1 Imagick::negateImage
<?php
function negateImage($imagePath, $grayOnly, $channel) {
$imagick = new \Imagick(realpath($imagePath));
$imagick->negateImage($grayOnly, $channel);
header("Content-Type: image/jpg");
echo $imagick->getImageBlob();
}
?>
Imagick::newImage
创建一张图片
说明
bool <span
class="methodname">Imagick::newImage ( <span
class="methodparam">int $cols
, <span
class="methodparam">int $rows
, <span
class="methodparam">mixed $background
[, string
$format
] )
创建一个 Imagick 图片对象,同时可以附带设置一个 ImagickPixel 值作为其背景色。
参数
cols
新建图片对象列的值(宽多少像素)
rows
新建图片对象行的值(高多少像素)
background
新建图片独享的背景色
format
图片格式。这个参数是在 Imagick 2.0.1 版本添加的。
返回值
成功时返回 true
。
错误/异常
错误时抛出 ImagickException。
更新日志
版本 | 说明 |
---|---|
2.1.0 | 现在可以似乎用了一个字符串作为颜色传入第三个参数。在此之前的版本只允许以一个 ImagickPixel 对象的形式传入。 |
范例
示例 #1 Using Imagick::newImage:
Create a new image and display it.
<?php
$image = new Imagick();
$image->newImage(100, 100, new ImagickPixel('red'));
$image->setImageFormat('png');
header('Content-type: image/png');
echo $image;
?>
Imagick::newPseudoImage
Creates a new image
说明
public bool
Imagick::newPseudoImage ( <span
class="methodparam">int $columns
,
int $rows
,
string
$pseudoString
)
Creates a new image using ImageMagick pseudo-formats.
参数
columns
columns in the new image
rows
rows in the new image
pseudoString
string containing pseudo image definition.
返回值
成功时返回 true
。
错误/异常
错误时抛出 ImagickException。
范例
示例 #1 Imagick::newPseudoImage
<?php
function newPseudoImage($canvasType) {
$imagick = new \Imagick();
$imagick->newPseudoImage(300, 300, $canvasType);
$imagick->setImageFormat("png");
header("Content-Type: image/png");
echo $imagick->getImageBlob();
}
//newPseudoImage('gradient:red-rgba(64, 255, 255, 0.5)');
//newPseudoImage("radial-gradient:red-blue");
newPseudoImage("plasma:fractal");
?>
Imagick::nextImage
Moves to the next image
说明
public bool Imagick::nextImage ( <span class="methodparam">void )
Associates the next image in the image list with an Imagick object.
返回值
成功时返回 true
。
Imagick::normalizeImage
Enhances the contrast of a color image
说明
public bool
Imagick::normalizeImage ([ <span
class="methodparam">int $channel
<span
class="initializer"> = Imagick::CHANNEL_DEFAULT ] )
Enhances the contrast of a color image by adjusting the pixels color to span the entire range of colors available.
参数
channel
Provide any channel constant that is valid for your channel mode. To
apply to more than one channel, combine channeltype constants using
bitwise operators. Refer to this list of
channel constants.
返回值
成功时返回 true
。
范例
示例 #1 Imagick::normalizeImage
<?php
function normalizeImage($imagePath, $channel) {
$imagick = new \Imagick(realpath($imagePath));
$original = clone $imagick;
$original->cropimage($original->getImageWidth() / 2, $original->getImageHeight(), 0, 0);
$imagick->normalizeImage($channel);
$imagick->compositeimage($original, \Imagick::COMPOSITE_ATOP, 0, 0);
header("Content-Type: image/jpg");
echo $imagick->getImageBlob();
}
?>
Imagick::oilPaintImage
Simulates an oil painting
说明
public bool
Imagick::oilPaintImage ( <span
class="methodparam">float $radius
)
Applies a special effect filter that simulates an oil painting. Each pixel is replaced by the most frequent color occurring in a circular region defined by radius.
参数
radius
The radius of the circular neighborhood.
返回值
成功时返回 true
。
范例
示例 #1 Imagick::oilPaintImage
<?php
function oilPaintImage($imagePath, $radius) {
$imagick = new \Imagick(realpath($imagePath));
$imagick->oilPaintImage($radius);
header("Content-Type: image/jpg");
echo $imagick->getImageBlob();
}
?>
Imagick::opaquePaintImage
Changes the color value of any pixel that matches target
说明
public bool
Imagick::opaquePaintImage ( <span
class="methodparam">mixed $target
,
mixed $fill
, float
$fuzz
, <span
class="type">bool $invert
[, <span
class="methodparam">int $channel
<span
class="initializer"> = Imagick::CHANNEL_DEFAULT ] )
Changes any pixel that matches color with the color defined by fill. 此方法在Imagick基于ImageMagick 6.3.8以上版本编译时可用。
参数
target
ImagickPixel object or a string containing the color to change
fill
The replacement color
fuzz
The amount of fuzz. For example, set fuzz to 10 and the color red at
intensities of 100 and 102 respectively are now interpreted as the same
color.
invert
If true
paints any pixel that does not match the target color.
channel
Provide any channel constant that is valid for your channel mode. To
apply to more than one channel, combine
channel constants
using bitwise operators. 缺省为Imagick::CHANNEL_DEFAULT
. 参考此
通道常数列表
返回值
成功时返回 true
。
Imagick::optimizeImageLayers
Removes repeated portions of images to optimize
说明
public bool Imagick::optimizeImageLayers ( <span class="methodparam">void )
Compares each image the GIF disposed forms of the previous image in the sequence. From this it attempts to select the smallest cropped image to replace each frame, while preserving the results of the animation. 此方法在Imagick基于ImageMagick 6.2.9以上版本编译时可用。
返回值
成功时返回 true
。
错误/异常
错误时抛出 ImagickException。
范例
示例 #1 Using <span class="function">Imagick::optimizeImageLayers
Reading, optimizing and writing a GIF image
<?php
/* create new imagick object */
$im = new Imagick("test.gif");
/* optimize the image layers */
$im->optimizeImageLayers();
/* write the image back */
$im->writeImages("test_optimized.gif", true);
?>
参见
- Imagick::compareImageLayers
- Imagick::writeImages
- Imagick::writeImage
Imagick::orderedPosterizeImage
Performs an ordered dither
Warning
此函数在 Imagick 3.4.4 中被 废弃,强烈建议不要应用此函数。
说明
public bool
Imagick::orderedPosterizeImage ( <span
class="methodparam">string
$threshold_map
[, <span
class="type">int $channel
=
Imagick::CHANNEL_DEFAULT ] )
Performs an ordered dither based on a number of pre-defined dithering threshold maps, but over multiple intensity levels, which can be different for different channels, according to the input arguments. 此方法在Imagick基于ImageMagick 6.3.1以上版本编译时可用。
参数
threshold_map
A string containing the name of the threshold dither map to use
channel
Provide any channel constant that is valid for your channel mode. To
apply to more than one channel, combine channeltype constants using
bitwise operators. Refer to this list of
channel constants.
返回值
成功时返回 true
。
错误/异常
错误时抛出 ImagickException。
范例
示例 #1 <span class="function">Imagick::orderedPosterizeImage
<?php
function orderedPosterizeImage($imagePath, $orderedPosterizeType) {
$imagick = new \Imagick(realpath($imagePath));
$imagick->orderedPosterizeImage($orderedPosterizeType);
$imagick->setImageFormat('png');
header("Content-Type: image/png");
echo $imagick->getImageBlob();
}
//orderedPosterizeImage($imagePath, 'o4x4,3,3');
//orderedPosterizeImage($imagePath, 'o8x8,6,6');
orderedPosterizeImage($imagePath, 'h8x8a');
?>
Imagick::paintFloodfillImage
Changes the color value of any pixel that matches target
Warning
此函数在 Imagick 3.4.4 中被 废弃,强烈建议不要应用此函数。
说明
public bool
Imagick::paintFloodfillImage ( <span
class="methodparam">mixed $fill
,
float $fuzz
, mixed
$bordercolor
, <span
class="type">int $x
, <span
class="type">int $y
[, <span
class="type">int $channel
=
Imagick::CHANNEL_DEFAULT ] )
Changes the color value of any pixel that matches target and is an immediate neighbor. As of ImageMagick 6.3.8 this method has been deprecated and <span class="function">Imagick::floodfillPaintImage should be used instead.
参数
fill
ImagickPixel object or a string containing the fill color
fuzz
The amount of fuzz. For example, set fuzz to 10 and the color red at
intensities of 100 and 102 respectively are now interpreted as the same
color for the purposes of the floodfill.
bordercolor
ImagickPixel object or a string containing the border color
x
X start position of the floodfill
y
Y start position of the floodfill
channel
Provide any channel constant that is valid for your channel mode. To
apply to more than one channel, combine
channel constants
using bitwise operators. 缺省为Imagick::CHANNEL_DEFAULT
. 参考此
通道常数列表
返回值
成功时返回 true
。
Imagick::paintOpaqueImage
Change any pixel that matches color
Warning
此函数在 Imagick 3.4.4 中被 废弃,强烈建议不要应用此函数。
说明
public bool
Imagick::paintOpaqueImage ( <span
class="methodparam">mixed $target
,
mixed $fill
, float
$fuzz
[, <span
class="type">int $channel
=
Imagick::CHANNEL_DEFAULT ] )
Changes any pixel that matches color with the color defined by fill.
参数
target
Change this target color to the fill color within the image. An
ImagickPixel object or a string representing the target color.
fill
An ImagickPixel object or a string representing the fill color.
fuzz
The fuzz member of image defines how much tolerance is acceptable to
consider two colors as the same.
channel
Provide any channel constant that is valid for your channel mode. To
apply to more than one channel, combine channeltype constants using
bitwise operators. Refer to this list of
channel constants.
返回值
成功时返回 true
。
错误/异常
错误时抛出 ImagickException。
更新日志
版本 | 说明 |
---|---|
PECL imagick 2.1.0 | Now allows a string representing the color as first and second parameter. Previous versions allow only an ImagickPixel object. |
Imagick::paintTransparentImage
Changes any pixel that matches color with the color defined by fill
Warning
此函数在 Imagick 3.4.4 中被 废弃,强烈建议不要应用此函数。
说明
public bool
Imagick::paintTransparentImage ( <span
class="methodparam">mixed $target
,
float
$alpha
, <span
class="type">float $fuzz
)
Changes any pixel that matches color with the color defined by fill.
参数
target
Change this target color to specified opacity value within the image.
alpha
The level of transparency: 1.0 is fully opaque and 0.0 is fully
transparent.
fuzz
The fuzz member of image defines how much tolerance is acceptable to
consider two colors as the same.
返回值
成功时返回 true
。
错误/异常
错误时抛出 ImagickException。
更新日志
版本 | 说明 |
---|---|
PECL imagick 2.1.0 | Now allows a string representing the color as the first parameter. Previous versions allow only an ImagickPixel object. |
Imagick::pingImage
Fetch basic attributes about the image
说明
public bool
Imagick::pingImage ( <span
class="methodparam">string $filename
)
This method can be used to query image width, height, size, and format without reading the whole image in to memory.
参数
filename
The filename to read the information from.
返回值
成功时返回 true
。
Imagick::pingImageBlob
Quickly fetch attributes
说明
public bool
Imagick::pingImageBlob ( <span
class="methodparam">string $image
)
This method can be used to query image width, height, size, and format without reading the whole image to memory. 此方法在Imagick基于ImageMagick 6.2.9以上版本编译时可用。
参数
image
A string containing the image.
返回值
成功时返回 true
。
范例
示例 #1 Using Imagick::pingImageBlob
Pinging an image from a string
<?php
/* read image contents */
$image = file_get_contents("test.jpg");
/* create new imagick object */
$im = new Imagick();
/* pass the string to the imagick object */
$im->pingImageBlob($image);
/* output image width and height */
echo $im->getImageWidth() . 'x' . $im->getImageHeight();
?>
参见
- Imagick::pingImage
- Imagick::pingImageFile
- Imagick::readImage
- Imagick::readImageBlob
- Imagick::readImageFile
Imagick::pingImageFile
Get basic image attributes in a lightweight manner
说明
public bool
Imagick::pingImageFile ( <span
class="methodparam">resource
$filehandle
[, <span
class="type">string $fileName
] )
This method can be used to query image width, height, size, and format without reading the whole image to memory. 此方法在Imagick基于ImageMagick 6.2.9以上版本编译时可用。
参数
filehandle
An open filehandle to the image.
fileName
Optional filename for this image.
返回值
成功时返回 true
。
范例
示例 #1 Using Imagick::pingImageFile
Opening a remote location
<?php
/* fopen a remote location */
$fp = fopen("http://example.com/test.jpg");
/* create new imagick object */
$im = new Imagick();
/* pass the handle to imagick */
$im->pingImageFile($fp);
?>
参见
- Imagick::pingImage
- Imagick::pingImageBlob
- Imagick::readImage
- Imagick::readImageBlob
- Imagick::readImageFile
Imagick::polaroidImage
Simulates a Polaroid picture
说明
public bool
Imagick::polaroidImage ( <span
class="methodparam">ImagickDraw
$properties
, <span
class="type">float $angle
)
Simulates a Polaroid picture. 此方法在Imagick基于ImageMagick 6.3.2以上版本编译时可用。
参数
properties
The polaroid properties
angle
The polaroid angle
返回值
成功时返回 true
。
范例
示例 #1 A Imagick::polaroidImage example
An example of using Imagick::polaroidImage()
<?php
/* Create the object */
$image = new Imagick('source.png');
/* Set the opacity */
$image->polaroidImage(new ImagickDraw(), 25);
/* output the image */
header('Content-type: image/png');
echo $image;
?>
Imagick::posterizeImage
Reduces the image to a limited number of color level
说明
public bool
Imagick::posterizeImage ( <span
class="methodparam">int $levels
,
bool
$dither
)
Reduces the image to a limited number of color level.
参数
levels
dither
返回值
成功时返回 true
。
范例
示例 #1 Imagick::posterizeImage
<?php
function posterizeImage($imagePath, $posterizeType, $numberLevels) {
$imagick = new \Imagick(realpath($imagePath));
$imagick->posterizeImage($numberLevels, $posterizeType);
$imagick->setImageFormat('png');
header("Content-Type: image/png");
echo $imagick->getImageBlob();
}
posterizeImage($imagePath, \Imagick::DITHERMETHOD_RIEMERSMA, 8);
?>
Imagick::previewImages
Quickly pin-point appropriate parameters for image processing
说明
public bool
Imagick::previewImages ( <span
class="methodparam">int $preview
)
Tiles 9 thumbnails of the specified image with an image processing operation applied at varying strengths. This is helpful to quickly pin-point an appropriate parameter for an image processing operation.
参数
preview
Preview type. See
Preview type constants
返回值
成功时返回 true
。
错误/异常
错误时抛出 ImagickException。
Imagick::previousImage
Move to the previous image in the object
说明
public bool Imagick::previousImage ( <span class="methodparam">void )
Assocates the previous image in an image list with the Imagick object.
返回值
成功时返回 true
。
Imagick::profileImage
Adds or removes a profile from an image
说明
public bool
Imagick::profileImage ( <span
class="methodparam">string $name
,
string
$profile
)
Adds or removes a ICC, IPTC, or generic profile from an image. If the profile is NULL, it is removed from the image otherwise added. Use a name of '*' and a profile of NULL to remove all profiles from the image.
参数
name
profile
返回值
成功时返回 true
。
错误/异常
错误时抛出 ImagickException。
Imagick::quantizeImage
Analyzes the colors within a reference image
说明
public bool
Imagick::quantizeImage ( <span
class="methodparam">int $numberColors
, int
$colorspace
, <span
class="type">int $treedepth
, <span
class="methodparam">bool $dither
,
bool
$measureError
)
参数
numberColors
colorspace
treedepth
dither
measureError
返回值
成功时返回 true
。
错误/异常
错误时抛出 ImagickException。
范例
示例 #1 Imagick::quantizeImage
<?php
function quantizeImage($imagePath, $numberColors, $colorSpace, $treeDepth, $dither) {
$imagick = new \Imagick(realpath($imagePath));
$imagick->quantizeImage($numberColors, $colorSpace, $treeDepth, $dither, false);
$imagick->setImageFormat('png');
header("Content-Type: image/png");
echo $imagick->getImageBlob();
}
?>
Imagick::quantizeImages
Analyzes the colors within a sequence of images
说明
public bool
Imagick::quantizeImages ( <span
class="methodparam">int $numberColors
, int
$colorspace
, <span
class="type">int $treedepth
, <span
class="methodparam">bool $dither
,
bool
$measureError
)
参数
numberColors
colorspace
treedepth
dither
measureError
返回值
成功时返回 true
。
错误/异常
错误时抛出 ImagickException。
Imagick::queryFontMetrics
Returns an array representing the font metrics
说明
public array
Imagick::queryFontMetrics ( <span
class="methodparam">ImagickDraw
$properties
, <span
class="type">string $text
[, <span
class="methodparam">bool $multiline
] )
Returns a multi-dimensional array representing the font metrics.
参数
properties
ImagickDraw object containing font properties
text
The text
multiline
Multiline parameter. If left empty it is autodetected
返回值
Returns a multi-dimensional array representing the font metrics.
错误/异常
错误时抛出 ImagickException。
范例
示例 #1 Using <span class="function">Imagick::queryFontMetrics:
Query the metrics for the text and dump the results on the screen.
<?php
/* Create a new Imagick object */
$im = new Imagick();
/* Create an ImagickDraw object */
$draw = new ImagickDraw();
/* Set the font */
$draw->setFont('/path/to/font.ttf');
/* Dump the font metrics, autodetect multiline */
var_dump($im->queryFontMetrics($draw, "Hello World!"));
?>
Imagick::queryFonts
Returns the configured fonts
说明
public <span
class="modifier">static array <span
class="methodname">Imagick::queryFonts ([ <span
class="methodparam">string $pattern
<span
class="initializer"> = "*" ] )
Returns the configured fonts.
参数
pattern
The query pattern
返回值
Returns an array containing the configured fonts.
错误/异常
错误时抛出 ImagickException。
范例
示例 #1 Imagick::queryFonts
<?php
$output = '';
$output .= "Fonts that match 'Helvetica*' are:<br/>";
$fontList = \Imagick::queryFonts("Helvetica*");
foreach ($fontList as $fontName) {
$output .= '<li>'. $fontName."</li>";
}
return $output;
?>
Imagick::queryFormats
Returns formats supported by Imagick
说明
public <span
class="modifier">static array <span
class="methodname">Imagick::queryFormats ([ <span
class="methodparam">string $pattern
<span
class="initializer"> = "*" ] )
Returns formats supported by Imagick.
参数
pattern
返回值
Returns an array containing the formats supported by Imagick.
错误/异常
错误时抛出 ImagickException。
范例
示例 #1 Imagick::queryFormats
<?php
function render() {
$output = "";
$input = \Imagick::queryformats();
$columns = 6;
$output .= "<table border='2'>";
for ($i=0; $i < count($input); $i += $columns) {
$output .= "<tr>";
for ($c=0; $c<$columns; $c++) {
$output .= "<td>";
if (($i + $c) < count($input)) {
$output .= $input[$i + $c];
}
$output .= "</td>";
}
$output .= "</tr>";
}
$output .= "</table>";
return $output;
}
?>
Imagick::radialBlurImage
Radial blurs an image
Warning
此函数在 Imagick 3.4.4 中被 废弃,强烈建议不要应用此函数。
说明
public bool
Imagick::radialBlurImage ( <span
class="methodparam">float $angle
[,
int $channel
<span
class="initializer"> = Imagick::CHANNEL_DEFAULT ] )
Radial blurs an image.
参数
angle
channel
返回值
成功时返回 true
。
范例
示例 #1 Imagick::radialBlurImage
<?php
function radialBlurImage($imagePath) {
$imagick = new \Imagick(realpath($imagePath));
//Blur 3 times with different radii
$imagick->radialBlurImage(3);
$imagick->radialBlurImage(5);
$imagick->radialBlurImage(7);
header("Content-Type: image/jpg");
echo $imagick->getImageBlob();
}
?>
Imagick::raiseImage
Creates a simulated 3d button-like effect
说明
public bool
Imagick::raiseImage ( <span
class="methodparam">int $width
,
int $height
, int $x
,
int $y
,
bool $raise
)
Creates a simulated three-dimensional button-like effect by lightening and darkening the edges of the image. Members width and height of raise_info define the width of the vertical and horizontal edge of the effect.
参数
width
height
x
y
raise
返回值
成功时返回 true
。
范例
示例 #1 Imagick::raiseImage
<?php
function raiseImage($imagePath, $width, $height, $x, $y, $raise) {
$imagick = new \Imagick(realpath($imagePath));
//x and y do nothing?
$imagick->raiseImage($width, $height, $x, $y, $raise);
header("Content-Type: image/jpg");
echo $imagick->getImageBlob();
}
?>
Imagick::randomThresholdImage
Creates a high-contrast, two-color image
说明
public bool
Imagick::randomThresholdImage ( <span
class="methodparam">float $low
,
float $high
[, int
$channel
=
Imagick::CHANNEL_DEFAULT ] )
Changes the value of individual pixels based on the intensity of each pixel compared to threshold. The result is a high-contrast, two color image. 此方法在Imagick基于ImageMagick 6.2.9以上版本编译时可用。
参数
low
The low point
high
The high point
channel
Provide any channel constant that is valid for your channel mode. To
apply to more than one channel, combine channeltype constants using
bitwise operators. Refer to this list of
channel constants.
返回值
成功时返回 true
。
范例
示例 #1 Imagick::randomThresholdImage
<?php
function randomThresholdimage($imagePath, $lowThreshold, $highThreshold, $channel) {
$imagick = new \Imagick(realpath($imagePath));
$imagick->randomThresholdimage(
$lowThreshold * \Imagick::getQuantum(),
$highThreshold * \Imagick::getQuantum(),
$channel
);
header("Content-Type: image/jpg");
echo $imagick->getImageBlob();
}
?>
Imagick::readImage
Reads image from filename
说明
public bool
Imagick::readImage ( <span
class="methodparam">string $filename
)
Reads image from filename
参数
filename
返回值
成功时返回 true
。
Imagick::readImageBlob
从二进制字符串里读取图片
说明
bool <span
class="methodname">Imagick::readImageBlob ( <span
class="methodparam">string $image
[,
string
$filename
] )
从二进制字符串里读取图片
参数
image
返回值
成功时返回 true
。
错误/异常
错误时抛出 ImagickException。
范例
示例 #1 Imagick::readImageBlob
<?php
function readImageBlob() {
$base64 = "iVBORw0KGgoAAAANSUhEUgAAAM0AAAD
NCAMAAAAsYgRbAAAAGXRFWHRTb2Z0d2FyZQBBZG9iZSBJbWFnZVJlYWR5c
cllPAAAABJQTFRF3NSmzMewPxIG//ncJEJsldTou1jHgAAAARBJREFUeNrs2EEK
gCAQBVDLuv+V20dENbMY831wKz4Y/VHb/5RGQ0NDQ0NDQ0NDQ0NDQ0NDQ
0NDQ0NDQ0NDQ0NDQ0NDQ0NDQ0PzMWtyaGhoaGhoaGhoaGhoaGhoxtb0QGho
aGhoaGhoaGhoaGhoaMbRLEvv50VTQ9OTQ5OpyZ01GpM2g0bfmDQaL7S+ofFC6x
v3ZpxJiywakzbvd9r3RWPS9I2+MWk0+kbf0Hih9Y17U0nTHibrDDQ0NDQ0NDQ0
NDQ0NDQ0NTXbRSL/AK72o6GhoaGhoRlL8951vwsNDQ0NDQ1NDc0WyHtDTEhD
Q0NDQ0NTS5MdGhoaGhoaGhoaGhoaGhoaGhoaGhoaGposzSHAAErMwwQ2HwRQ
AAAAAElFTkSuQmCC";
$imageBlob = base64_decode($base64);
$imagick = new Imagick();
$imagick->readImageBlob($imageBlob);
header("Content-Type: image/png");
echo $imageBlob;
}
?>
Imagick::readImageFile
Reads image from open filehandle
说明
public bool
Imagick::readImageFile ( <span
class="methodparam">resource
$filehandle
[, <span
class="type">string $fileName
=
null
] )
Reads image from open filehandle
参数
filehandle
fileName
返回值
成功时返回 true
。
错误/异常
错误时抛出 ImagickException。
Imagick::readimages
Description
说明
public bool
Imagick::readImages ( <span
class="methodparam">array $filenames
)
Reads image from an array of filenames. All the images are held in a single Imagick object.
参数
filenames
返回值
成功时返回 true
。
Imagick::recolorImage
Recolors image
Warning
此函数在 Imagick 3.4.4 中被 废弃,强烈建议不要应用此函数。
说明
public bool
Imagick::recolorImage ( <span
class="methodparam">array $matrix
)
Translate, scale, shear, or rotate image colors. This method supports variable sized matrices but normally 5x5 matrix is used for RGBA and 6x6 is used for CMYK. The last row should contain the normalized values. 此方法在Imagick基于ImageMagick 6.3.6以上版本编译时可用。
参数
matrix
The matrix containing the color values
返回值
成功时返回 true
。
参见
- Imagick::displayImage
范例
示例 #1 Imagick::recolorImage
<?php
function recolorImage($imagePath) {
$imagick = new \Imagick(realpath($imagePath));
$remapColor = [ 1, 0, 0,
0, 0, 1,
0, 1, 0,];
//$remapColor = [
// 1.438, -0.122, -0.016, 0, 0, -0.03,
// -0.062, 1.378, -0.016, 0, 0, 0.05,
// -0.062, -0.122, 1.483, 0, 0, -0.02,
//];
@$imagick->recolorImage($remapColor);
header("Content-Type: image/jpg");
echo $imagick->getImageBlob();
}
?>
Imagick::reduceNoiseImage
Smooths the contours of an image
Warning
此函数在 Imagick 3.4.4 中被 废弃,强烈建议不要应用此函数。
说明
public bool
Imagick::reduceNoiseImage ( <span
class="methodparam">float $radius
)
Smooths the contours of an image while still preserving edge information. The algorithm works by replacing each pixel with its neighbor closest in value. A neighbor is defined by radius. Use a radius of 0 and Imagick::reduceNoiseImage() selects a suitable radius for you.
参数
radius
返回值
成功时返回 true
。
错误/异常
错误时抛出 ImagickException。
范例
示例 #1 Imagick::reduceNoiseImage
<?php
function reduceNoiseImage($imagePath, $reduceNoise) {
$imagick = new \Imagick(realpath($imagePath));
@$imagick->reduceNoiseImage($reduceNoise);
header("Content-Type: image/jpg");
echo $imagick->getImageBlob();
}
?>
Imagick::remapImage
Remaps image colors
说明
public bool
Imagick::remapImage ( <span
class="methodparam">Imagick
$replacement
, <span
class="type">int $DITHER
)
Replaces colors an image with those defined by replacement
. The colors
are replaced with the closest possible color.
此方法在Imagick基于ImageMagick 6.4.5以上版本编译时可用。
参数
replacement
An Imagick object containing the replacement colors
DITHER
Refer to this list of
dither method constants
返回值
成功时返回 true
。
错误/异常
错误时抛出 ImagickException。
Imagick::removeImage
Removes an image from the image list
说明
public bool Imagick::removeImage ( <span class="methodparam">void )
Removes an image from the image list.
返回值
成功时返回 true
。
错误/异常
错误时抛出 ImagickException。
Imagick::removeImageProfile
Removes the named image profile and returns it
说明
public string
Imagick::removeImageProfile ( <span
class="methodparam">string $name
)
Removes the named image profile and returns it.
参数
name
返回值
Returns a string containing the profile of the image.
错误/异常
错误时抛出 ImagickException。
Imagick::render
Renders all preceding drawing commands
说明
public bool Imagick::render ( <span class="methodparam">void )
Renders all preceding drawing commands.
返回值
成功时返回 true
。
Imagick::resampleImage
Resample image to desired resolution
说明
public bool
Imagick::resampleImage ( <span
class="methodparam">float
$x_resolution
, <span
class="type">float $y_resolution
, <span
class="methodparam">int $filter
,
float $blur
)
Resample image to desired resolution.
参数
x_resolution
y_resolution
filter
blur
返回值
成功时返回 true
。
范例
示例 #1 Imagick::resampleImage
<?php
function resampleImage($imagePath) {
$imagick = new \Imagick(realpath($imagePath));
$imagick->resampleImage(200, 200, \Imagick::FILTER_LANCZOS, 1);
header("Content-Type: image/jpg");
echo $imagick->getImageBlob();
}
?>
Imagick::resetImagePage
Reset image page
说明
public bool
Imagick::resetImagePage ( <span
class="methodparam">string $page
)
The page definition as a string. The string is in format WxH+x+y. 此方法在Imagick基于ImageMagick 6.3.6以上版本编译时可用。
参数
page
The page definition. For example 7168x5147+0+0
返回值
成功时返回 true
。
Imagick::resizeImage
Scales an image
说明
public bool
Imagick::resizeImage ( <span
class="methodparam">int $columns
,
int $rows
,
int $filter
, float
$blur
[, <span
class="type">bool $bestfit
=
false
[, <span
class="type">bool $legacy
=
false
]] )
Scales an image to the desired dimensions with a filter.
Note: 参数
bestfit
的特性在 Imagick 3.0.0 中已改变。在此版本以前,当目标尺寸设为 400x400 时,原尺寸为 200x150 的图像将不会被改变。自 Imagick 3.0.0 起,源图像将会被放大到 400x300 因为这将更好的适合目标尺寸。当使用参数bestfit
时,必须同时给出宽度和高度。
参数
columns
Width of the image
rows
Height of the image
filter
Refer to the list of
filter constants.
blur
The blur factor where > 1 is blurry, \< 1 is sharp.
bestfit
Optional fit parameter.
返回值
成功时返回 true
。
更新日志
版本 | 说明 |
---|---|
PECL imagick 2.1.0 | Added optional fit parameter. This method now supports proportional scaling. Pass zero as either parameter for proportional scaling. |
范例
示例 #1 Imagick::resizeImage
<?php
function resizeImage($imagePath, $width, $height, $filterType, $blur, $bestFit, $cropZoom) {
//The blur factor where > 1 is blurry, < 1 is sharp.
$imagick = new \Imagick(realpath($imagePath));
$imagick->resizeImage($width, $height, $filterType, $blur, $bestFit);
$cropWidth = $imagick->getImageWidth();
$cropHeight = $imagick->getImageHeight();
if ($cropZoom) {
$newWidth = $cropWidth / 2;
$newHeight = $cropHeight / 2;
$imagick->cropimage(
$newWidth,
$newHeight,
($cropWidth - $newWidth) / 2,
($cropHeight - $newHeight) / 2
);
$imagick->scaleimage(
$imagick->getImageWidth() * 4,
$imagick->getImageHeight() * 4
);
}
header("Content-Type: image/jpg");
echo $imagick->getImageBlob();
}
?>
Imagick::rollImage
Offsets an image
说明
public bool
Imagick::rollImage ( <span
class="methodparam">int $x
, <span
class="methodparam">int $y
)
Offsets an image as defined by x and y.
参数
x
The X offset.
y
The Y offset.
返回值
成功时返回 true
。
范例
示例 #1 Imagick::rollImage
<?php
function rollImage($imagePath, $rollX, $rollY) {
$imagick = new \Imagick(realpath($imagePath));
$imagick->rollimage($rollX, $rollY);
header("Content-Type: image/jpg");
echo $imagick->getImageBlob();
}
?>
Imagick::rotateImage
Rotates an image
说明
public bool
Imagick::rotateImage ( <span
class="methodparam">mixed $background
, float
$degrees
)
Rotates an image the specified number of degrees. Empty triangles left over from rotating the image are filled with the background color.
参数
background
The background color
degrees
Rotation angle, in degrees. The rotation angle is interpreted as the
number of degrees to rotate the image clockwise.
返回值
成功时返回 true
。
更新日志
版本 | 说明 |
---|---|
PECL imagick 2.1.0 | Now allows a string representing the color as the first parameter. Previous versions allow only an ImagickPixel object. |
范例
示例 #1 Imagick::rotateImage
<?php
function rotateImage($imagePath, $angle, $color) {
$imagick = new \Imagick(realpath($imagePath));
$imagick->rotateimage($color, $angle);
header("Content-Type: image/jpg");
echo $imagick->getImageBlob();
}
?>
Imagick::rotationalBlurImage
Description
说明
public bool
Imagick::rotationalBlurImage ( <span
class="methodparam">float $angle
[,
int $channel
<span
class="initializer"> = Imagick::CHANNEL_DEFAULT ] )
Rotational blurs an image.
参数
angle
The angle to apply the blur over.
channel
Provide any channel constant that is valid for your channel mode. To
apply to more than one channel, combine
channel constants
using bitwise operators. 缺省为Imagick::CHANNEL_DEFAULT
. 参考此
通道常数列表
返回值
成功时返回 true
。
范例
示例 #1 Imagick::rotationalBlurImage
<?php
function rotationalBlurImage($imagePath) {
$imagick = new \Imagick(realpath($imagePath));
$imagick->rotationalBlurImage(3);
$imagick->rotationalBlurImage(5);
$imagick->rotationalBlurImage(7);
header("Content-Type: image/jpg");
echo $imagick->getImageBlob();
}
?>
Imagick::roundCorners
Rounds image corners
Warning
此函数在 Imagick 3.4.4 中被 废弃,强烈建议不要应用此函数。
说明
public bool
Imagick::roundCorners ( <span
class="methodparam">float $x_rounding
, float
$y_rounding
[, <span
class="type">float $stroke_width
=
10 [, <span
class="type">float $displace
=
5 [, <span
class="type">float $size_correction
=
-6 ]]] )
Rounds image corners. The first two parameters control the amount of rounding and the three last parameters can be used to fine-tune the rounding process. 此方法在Imagick基于ImageMagick 6.2.9以上版本编译时可用。
参数
x_rounding
x rounding
y_rounding
y rounding
stroke_width
stroke width
displace
image displace
size_correction
size correction
范例
示例 #1 Using Imagick::roundCorners:
Rounds the image corners
<?php
$image = new Imagick();
$image->newPseudoImage(100, 100, "magick:rose");
$image->setImageFormat("png");
$image->roundCorners(5,3);
$image->writeImage("rounded.png");
?>
返回值
成功时返回 true
。
Imagick::sampleImage
Scales an image with pixel sampling
说明
public bool
Imagick::sampleImage ( <span
class="methodparam">int $columns
,
int $rows
)
Scales an image to the desired dimensions with pixel sampling. Unlike other scaling methods, this method does not introduce any additional color into the scaled image.
参数
columns
rows
返回值
成功时返回 true
。
Imagick::scaleImage
Scales the size of an image
说明
public bool
Imagick::scaleImage ( <span
class="methodparam">int $cols
, <span
class="methodparam">int $rows
[,
bool $bestfit
<span
class="initializer"> = false
[, <span
class="methodparam">bool $legacy
<span
class="initializer"> = false
]] )
Scales the size of an image to the given dimensions. The other parameter will be calculated if 0 is passed as either param.
Note: 参数
bestfit
的特性在 Imagick 3.0.0 中已改变。在此版本以前,当目标尺寸设为 400x400 时,原尺寸为 200x150 的图像将不会被改变。自 Imagick 3.0.0 起,源图像将会被放大到 400x300 因为这将更好的适合目标尺寸。当使用参数bestfit
时,必须同时给出宽度和高度。
参数
cols
rows
bestfit
返回值
成功时返回 true
。
错误/异常
错误时抛出 ImagickException。
更新日志
版本 | 说明 |
---|---|
PECL imagick 2.1.0 | Added optional fit parameter. This method now supports proportional scaling. Pass zero as either parameter for proportional scaling. |
范例
示例 #1 Imagick::scaleImage
<?php
function scaleImage($imagePath) {
$imagick = new \Imagick(realpath($imagePath));
$imagick->scaleImage(150, 150, true);
header("Content-Type: image/jpg");
echo $imagick->getImageBlob();
}
?>
Imagick::segmentImage
Segments an image
说明
public bool
Imagick::segmentImage ( <span
class="methodparam">int $COLORSPACE
,
float
$cluster_threshold
, <span
class="type">float $smooth_threshold
[, <span
class="methodparam">bool $verbose
<span
class="initializer"> = false
] )
Analyses the image and identifies units that are similar. 此方法在Imagick基于ImageMagick 6.4.5以上版本编译时可用。
参数
COLORSPACE
One of the
COLORSPACE constants.
cluster_threshold
A percentage describing minimum number of pixels contained in hexedra
before it is considered valid.
smooth_threshold
Eliminates noise from the histogram.
verbose
Whether to output detailed information about recognised classes.
返回值
范例
示例 #1 Imagick::segmentImage
<?php
function segmentImage($imagePath, $colorSpace, $clusterThreshold, $smoothThreshold) {
$imagick = new \Imagick(realpath($imagePath));
$imagick->segmentImage($colorSpace, $clusterThreshold, $smoothThreshold);
header("Content-Type: image/jpg");
echo $imagick->getImageBlob();
}
segmentImage($imagePath, \Imagick::COLORSPACE_RGB, 5, 5);
?>
Imagick::selectiveBlurImage
Description
说明
public bool
Imagick::selectiveBlurImage ( <span
class="methodparam">float $radius
,
float
$sigma
, <span
class="type">float $threshold
[, <span
class="methodparam">int $channel
<span
class="initializer"> = Imagick::CHANNEL_DEFAULT ] )
Selectively blur an image within a contrast threshold. It is similar to the unsharpen mask that sharpens everything with contrast above a certain threshold.
参数
radius
sigma
threshold
channel
Provide any channel constant that is valid for your channel mode. To
apply to more than one channel, combine
channel constants
using bitwise operators. 缺省为Imagick::CHANNEL_DEFAULT
. 参考此
通道常数列表
返回值
成功时返回 true
。
范例
示例 #1 Imagick::selectiveBlurImage
<?php
function selectiveBlurImage($imagePath, $radius, $sigma, $threshold, $channel) {
$imagick = new \Imagick(realpath($imagePath));
$imagick->selectiveBlurImage($radius, $sigma, $threshold, $channel);
header("Content-Type: image/jpg");
echo $imagick->getImageBlob();
}
?>
Imagick::separateImageChannel
Separates a channel from the image
说明
public bool
Imagick::separateImageChannel ( <span
class="methodparam">int $channel
)
Separates a channel from the image and returns a grayscale image. A channel is a particular color component of each pixel in the image.
参数
channel
Which 'channel' to return. For colorspaces other than RGB, you can still
use the CHANNEL_RED, CHANNEL_GREEN, CHANNEL_BLUE constants to
indicate the 1st, 2nd and 3rd channels.
返回值
成功时返回 true
。
错误/异常
错误时抛出 ImagickException。
范例
示例 #1 Imagick::separateImageChannel
<?php
function separateImageChannel($imagePath, $channel) {
$imagick = new \Imagick(realpath($imagePath));
$imagick->separateimagechannel($channel);
header("Content-Type: image/jpg");
echo $imagick->getImageBlob();
}
separateImageChannel($imagePath, \Imagick::CHANNEL_GREEN);
?>
Imagick::sepiaToneImage
Sepia tones an image
说明
public bool
Imagick::sepiaToneImage ( <span
class="methodparam">float $threshold
)
Applies a special effect to the image, similar to the effect achieved in a photo darkroom by sepia toning. Threshold ranges from 0 to QuantumRange and is a measure of the extent of the sepia toning. A threshold of 80 is a good starting point for a reasonable tone.
参数
threshold
返回值
成功时返回 true
。
错误/异常
错误时抛出 ImagickException。
范例
示例 #1 Imagick::sepiaToneImage
<?php
function sepiaToneImage($imagePath, $sepia) {
$imagick = new \Imagick(realpath($imagePath));
$imagick->sepiaToneImage($sepia);
header("Content-Type: image/jpg");
echo $imagick->getImageBlob();
}
?>
Imagick::setBackgroundColor
Sets the object's default background color
说明
public bool
Imagick::setBackgroundColor ( <span
class="methodparam">mixed $background
)
Sets the object's default background color.
参数
background
返回值
成功时返回 true
。
更新日志
版本 | 说明 |
---|---|
PECL imagick 2.1.0 | Now allows a string representing the color as a parameter. Previous versions allow only an ImagickPixel object. |
Imagick::setColorspace
Set colorspace
说明
public bool
Imagick::setColorspace ( <span
class="methodparam">int $COLORSPACE
)
Sets the global colorspace value for the object. 此方法在Imagick基于ImageMagick 6.5.7以上版本编译时可用。
参数
COLORSPACE
One of the
COLORSPACE constants
返回值
成功时返回 true
。
错误/异常
错误时抛出 ImagickException。
Imagick::setCompression
Sets the object's default compression type
说明
public bool
Imagick::setCompression ( <span
class="methodparam">int $compression
)
Sets the object's default compression type
参数
compression
The compression type. See the
Imagick::COMPRESSION_*
constants.
返回值
成功时返回 true
。
Imagick::setCompressionQuality
Sets the object's default compression quality
说明
public bool
Imagick::setCompressionQuality ( <span
class="methodparam">int $quality
)
Sets the object's default compression quality.
Caution
This method only works for new images e.g. those created through Imagick::newPseudoImage. For existing images you should use <span class="methodname">Imagick::setImageCompressionQuality.
参数
quality
An int between 1 and 100, 1 = high
compression, 100 low compression.
返回值
成功时返回 true
。
范例
示例 #1 <span class="function">Imagick::setCompressionQuality
<?php
function setCompressionQuality($imagePath, $quality) {
$backgroundImagick = new \Imagick(realpath($imagePath));
$imagick = new \Imagick();
$imagick->setCompressionQuality($quality);
$imagick->newPseudoImage(
$backgroundImagick->getImageWidth(),
$backgroundImagick->getImageHeight(),
'canvas:white'
);
$imagick->compositeImage(
$backgroundImagick,
\Imagick::COMPOSITE_ATOP,
0,
0
);
$imagick->setFormat("jpg");
header("Content-Type: image/jpg");
echo $imagick->getImageBlob();
}
?>
Imagick::setFilename
Sets the filename before you read or write the image
说明
public bool
Imagick::setFilename ( <span
class="methodparam">string $filename
)
Sets the filename before you read or write an image file.
参数
filename
返回值
成功时返回 true
。
Imagick::setFirstIterator
Sets the Imagick iterator to the first image
说明
public bool Imagick::setFirstIterator ( <span class="methodparam">void )
Sets the Imagick iterator to the first image.
返回值
成功时返回 true
。
Imagick::setFont
Sets font
说明
public bool
Imagick::setFont ( <span
class="methodparam">string $font
)
Sets object's font property. This method can be used for example to set
font for caption: pseudo-format. The font needs to be configured in
ImageMagick configuration or a file by the name of font
must exist.
This method should not be confused with <span
class="function">ImagickDraw::setFont which sets the font for a
specific ImagickDraw object. 此方法在Imagick基于ImageMagick
6.3.7以上版本编译时可用。
参数
font
Font name or a filename
返回值
成功时返回 true
。
参见
- Imagick::getFont
- ImagickDraw::setFont
- ImagickDraw::getFont
范例
示例 #1 A Imagick::setFont example
Example of using Imagick::setFont
<?php
/* Create new imagick object */
$im = new Imagick();
/* Set the font for the object */
$im->setFont("example.ttf");
/* Create new caption */
$im->newPseudoImage(100, 100, "caption:Hello");
/* Do something with the image */
?>
Imagick::setFormat
Sets the format of the Imagick object
说明
public bool
Imagick::setFormat ( <span
class="methodparam">string $format
)
Sets the format of the Imagick object.
参数
format
返回值
成功时返回 true
。
Imagick::setGravity
Sets the gravity
说明
public bool
Imagick::setGravity ( <span
class="methodparam">int $gravity
)
Sets the global gravity property for the Imagick object. 此方法在Imagick基于ImageMagick 6.4.0以上版本编译时可用。
参数
gravity
The gravity property. Refer to the list of
gravity constants.
返回值
没有返回值。
Imagick::setImage
Replaces image in the object
说明
public bool
Imagick::setImage ( <span
class="methodparam">Imagick $replace
)
Replaces the current image sequence with the image from replace object.
参数
replace
The replace Imagick object
返回值
成功时返回 true
。
错误/异常
错误时抛出 ImagickException。
范例
示例 #1 A Imagick::setImage example
An example of using Imagick::setImage()
<?php
/* Create the objects */
$image = new Imagick('source.jpg');
$replace = new Imagick('replace.jpg');
/* source.jpg is replaced with replace.jpg */
$image->setImage($replace);
/* output the image */
header('Content-type: image/jpeg');
echo $image;
?>
Imagick::setImageAlphaChannel
Sets image alpha channel
说明
public bool
Imagick::setImageAlphaChannel ( <span
class="methodparam">int $mode
)
Activate or deactivate image alpha channel. The mode
is one of the
*`Imagick::ALPHACHANNEL_`** constants. 此方法在Imagick基于ImageMagick
6.3.8以上版本编译时可用。
参数
mode
One of the *`Imagick::ALPHACHANNEL_`** constants
返回值
成功时返回 true
。
错误/异常
错误时抛出 ImagickException。
参见
- Imagick::setImageMatte
- Imagick Alpha Channel Constants
Imagick::setImageArtifact
Set image artifact
说明
public bool
Imagick::setImageArtifact ( <span
class="methodparam">string $artifact
, string
$value
)
Associates an artifact with the image. The difference between image properties and image artifacts is that properties are public and artifacts are private. 此方法在Imagick基于ImageMagick 6.5.7以上版本编译时可用。
参数
artifact
The name of the artifact
value
The value of the artifact
返回值
成功时返回 true
。
错误/异常
错误时抛出 ImagickException。
参见
- Imagick::getImageArtifact
- Imagick::deleteImageArtifact
范例
示例 #1 Imagick::setImageArtifact
<?php
function setImageArtifact() {
$src1 = new \Imagick(realpath("./images/artifact/source1.png"));
$src2 = new \Imagick(realpath("./images/artifact/source2.png"));
$src2->setImageVirtualPixelMethod(\Imagick::VIRTUALPIXELMETHOD_TRANSPARENT);
$src2->setImageArtifact('compose:args', "1,0,-0.5,0.5");
$src1->compositeImage($src2, Imagick::COMPOSITE_MATHEMATICS, 0, 0);
$src1->setImageFormat('png');
header("Content-Type: image/png");
echo $src1->getImagesBlob();
}
?>
Imagick::setImageAttribute
Description
Warning
此函数在 Imagick 3.4.4 中被 废弃,强烈建议不要应用此函数。
说明
public bool
Imagick::setImageAttribute ( <span
class="methodparam">string $key
,
string
$value
)
Warning
本函数还未编写文档,仅有参数列表。
参数
key
value
返回值
成功时返回 true
。
Imagick::setImageBackgroundColor
Sets the image background color
说明
public bool
Imagick::setImageBackgroundColor ( <span
class="methodparam">mixed $background
)
Sets the image background color.
参数
background
返回值
成功时返回 true
。
错误/异常
错误时抛出 ImagickException。
更新日志
版本 | 说明 |
---|---|
PECL imagick 2.1.0 | Now allows a string representing the color as the parameter. Previous versions allow only an ImagickPixel object. |
Imagick::setImageBias
Sets the image bias for any method that convolves an image
Warning
此函数在 Imagick 3.4.4 中被 废弃,强烈建议不要应用此函数。
说明
public bool
Imagick::setImageBias ( <span
class="methodparam">float $bias
)
Sets the image bias for any method that convolves an image (e.g. Imagick::ConvolveImage()).
参数
bias
返回值
成功时返回 true
。
错误/异常
错误时抛出 ImagickException。
范例
示例 #1 Imagick::setImageBias
<?php
//requires ImageMagick version 6.9.0-1 to have an effect on convolveImage
function setImageBias($bias) {
$imagick = new \Imagick(realpath("images/stack.jpg"));
$xKernel = array(
-0.70, 0, 0.70,
-0.70, 0, 0.70,
-0.70, 0, 0.70
);
$imagick->setImageBias($bias * \Imagick::getQuantum());
$imagick->convolveImage($xKernel, \Imagick::CHANNEL_ALL);
$imagick->setImageFormat('png');
header('Content-type: image/png');
echo $imagick->getImageBlob();
}
?>
Imagick::setImageBiasQuantum
Description
Warning
此函数在 Imagick 3.4.4 中被 废弃,强烈建议不要应用此函数。
说明
public void
Imagick::setImageBiasQuantum ( <span
class="methodparam">string $bias
)
Warning
本函数还未编写文档,仅有参数列表。
参数
bias
返回值
Imagick::setImageBluePrimary
Sets the image chromaticity blue primary point
说明
public bool
Imagick::setImageBluePrimary ( <span
class="methodparam">float $x
, <span
class="methodparam">float $y
)
Sets the image chromaticity blue primary point.
参数
x
y
返回值
成功时返回 true
。
错误/异常
错误时抛出 ImagickException。
Imagick::setImageBorderColor
Sets the image border color
说明
public bool
Imagick::setImageBorderColor ( <span
class="methodparam">mixed $border
)
Sets the image border color.
参数
border
The border color
返回值
成功时返回 true
。
错误/异常
错误时抛出 ImagickException。
更新日志
版本 | 说明 |
---|---|
PECL imagick 2.1.0 | Now allows a string representing the color as a parameter. Previous versions allow only an ImagickPixel object. |
Imagick::setImageChannelDepth
Sets the depth of a particular image channel
说明
public bool
Imagick::setImageChannelDepth ( <span
class="methodparam">int $channel
,
int $depth
)
Sets the depth of a particular image channel.
参数
channel
depth
返回值
成功时返回 true
。
错误/异常
错误时抛出 ImagickException。
Imagick::setImageClipMask
Sets image clip mask
Warning
此函数在 Imagick 3.4.4 中被 废弃,强烈建议不要应用此函数。
说明
public bool
Imagick::setImageClipMask ( <span
class="methodparam">Imagick
$clip_mask
)
Sets image clip mask from another Imagick object. 此方法在Imagick基于ImageMagick 6.3.6以上版本编译时可用。
参数
clip_mask
The Imagick object containing the clip mask
返回值
成功时返回 true
。
错误/异常
错误时抛出 ImagickException。
范例
示例 #1 Imagick::setImageClipMask
<?php
function setImageClipMask($imagePath) {
$imagick = new \Imagick();
$imagick->readImage(realpath($imagePath));
$width = $imagick->getImageWidth();
$height = $imagick->getImageHeight();
$clipMask = new \Imagick();
$clipMask->newPseudoImage(
$width,
$height,
"canvas:transparent"
);
$draw = new \ImagickDraw();
$draw->setFillColor('white');
$draw->circle(
$width / 2,
$height / 2,
($width / 2) + ($width / 4),
$height / 2
);
$clipMask->drawImage($draw);
$imagick->setImageClipMask($clipMask);
$imagick->negateImage(false);
$imagick->setFormat("png");
header("Content-Type: image/png");
echo $imagick->getImagesBlob();
}
?>
Imagick::setImageColormapColor
Sets the color of the specified colormap index
说明
public bool
Imagick::setImageColormapColor ( <span
class="methodparam">int $index
,
ImagickPixel
$color
)
Sets the color of the specified colormap index.
参数
index
color
返回值
成功时返回 true
。
错误/异常
错误时抛出 ImagickException。
Imagick::setImageColorspace
Sets the image colorspace
说明
public bool
Imagick::setImageColorspace ( <span
class="methodparam">int $colorspace
)
Sets the image colorspace. This method should be used when creating new images. To change the colorspace of an existing image, you should use Imagick::transformImageColorspace.
参数
colorspace
One of the
COLORSPACE constants
返回值
成功时返回 true
。
错误/异常
错误时抛出 ImagickException。
Imagick::setImageCompose
Sets the image composite operator
说明
public bool
Imagick::setImageCompose ( <span
class="methodparam">int $compose
)
Sets the image composite operator, useful for specifying how to composite the image thumbnail when using the Imagick::montageImage() method.
参数
compose
返回值
成功时返回 true
。
错误/异常
错误时抛出 ImagickException。
Imagick::setImageCompression
设置图片压缩的类型
说明
bool <span
class="methodname">Imagick::setImageCompression ( <span
class="methodparam">int $compression
)
参数
compression
COMPRESSION
常量里的一种
返回值
成功时返回 true
。
错误/异常
错误时抛出 ImagickException。
Imagick::setImageCompressionQuality
设置图片压缩的质量
说明
bool <span
class="methodname">Imagick::setImageCompressionQuality ( <span
class="methodparam">int $quality
)
设置图片压缩的质量
参数
quality
配置压缩质量的整数
返回值
成功时返回 true
。
错误/异常
错误时抛出 ImagickException。
Imagick::setImageDelay
Sets the image delay
说明
public bool
Imagick::setImageDelay ( <span
class="methodparam">int $delay
)
Sets the image delay. For an animated image this is the amount of time that this frame of the image should be displayed for, before displaying the next frame.
The delay can be set individually for each frame in an image.
参数
delay
The amount of time expressed in 'ticks' that the image should be
displayed for. For animated GIFs there are 100 ticks per second, so a
value of 20 would be 20/100 of a second aka 1/5th of a second.
返回值
成功时返回 true
。
错误/异常
错误时抛出 ImagickException。
范例
示例 #1 Modify animated Gif with <span class="function">Imagick::setImageDelay
<?php
// Modify an animated Gif so that it's frames are played at a variable speed,
// varying between being shown for 50ms down to 0ms, which will cause the frame
// to be skipped in most browsers.
$imagick = new Imagick(realpath("Test.gif"));
$imagick = $imagick->coalesceImages();
$frameCount = 0;
foreach ($imagick as $frame) {
$imagick->setImageDelay((($frameCount % 11) * 5));
$frameCount++;
}
$imagick = $imagick->deconstructImages();
$imagick->writeImages("/path/to/save/output.gif", true);
?>
Imagick::setImageDepth
Sets the image depth
说明
public bool
Imagick::setImageDepth ( <span
class="methodparam">int $depth
)
Sets the image depth.
参数
depth
返回值
成功时返回 true
。
错误/异常
错误时抛出 ImagickException。
Imagick::setImageDispose
Sets the image disposal method
说明
public bool
Imagick::setImageDispose ( <span
class="methodparam">int $dispose
)
Sets the image disposal method.
参数
dispose
返回值
成功时返回 true
。
错误/异常
错误时抛出 ImagickException。
Imagick::setImageExtent
Sets the image size
说明
public bool
Imagick::setImageExtent ( <span
class="methodparam">int $columns
,
int $rows
)
Sets the image size (i.e. columns & rows).
参数
columns
rows
返回值
成功时返回 true
。
错误/异常
错误时抛出 ImagickException。
Imagick::setImageFilename
Sets the filename of a particular image
说明
public bool
Imagick::setImageFilename ( <span
class="methodparam">string $filename
)
Sets the filename of a particular image in a sequence.
参数
filename
返回值
成功时返回 true
。
错误/异常
错误时抛出 ImagickException。
Imagick::setImageFormat
为图片设置指定的格式
说明
bool <span
class="methodname">Imagick::setImageFormat ( <span
class="methodparam">string $format
)
为图片设置指定的格式
参数
format
表示图片格式的一个字符串。支持的格式依赖于 ImageMagick 的安装。
返回值
成功时返回 true
。
Imagick::setImageGamma
Sets the image gamma
说明
public bool
Imagick::setImageGamma ( <span
class="methodparam">float $gamma
)
Sets the image gamma.
参数
gamma
返回值
成功时返回 true
。
错误/异常
错误时抛出 ImagickException。
Imagick::setImageGravity
Sets the image gravity
说明
public bool
Imagick::setImageGravity ( <span
class="methodparam">int $gravity
)
Sets the gravity property for the current image. This method can be used to set the gravity property for a single image sequence. 此方法在Imagick基于ImageMagick 6.4.4以上版本编译时可用。
参数
gravity
The gravity property. Refer to the list of
gravity constants.
返回值
没有返回值。
Imagick::setImageGreenPrimary
Sets the image chromaticity green primary point
说明
public bool
Imagick::setImageGreenPrimary ( <span
class="methodparam">float $x
, <span
class="methodparam">float $y
)
Sets the image chromaticity green primary point.
参数
x
y
返回值
成功时返回 true
。
错误/异常
错误时抛出 ImagickException。
Imagick::setImageIndex
Set the iterator position
Warning
此函数在 Imagick 3.4.4 中被 废弃,强烈建议不要应用此函数。
说明
public bool
Imagick::setImageIndex ( <span
class="methodparam">int $index
)
Set the iterator to the position in the image list specified with the index parameter.
This method has been deprecated. See <span class="function">Imagick::setIteratorIndex.
参数
index
The position to set the iterator to
返回值
成功时返回 true
。
错误/异常
错误时抛出 ImagickException。
Imagick::setImageInterlaceScheme
Sets the image compression
说明
public bool
Imagick::setImageInterlaceScheme ( <span
class="methodparam">int
$interlace_scheme
)
Sets the image compression.
参数
interlace_scheme
返回值
成功时返回 true
。
错误/异常
错误时抛出 ImagickException。
Imagick::setImageInterpolateMethod
Sets the image interpolate pixel method
说明
public bool
Imagick::setImageInterpolateMethod (
int $method
)
Sets the image interpolate pixel method.
参数
method
The method is one of the *`Imagick::INTERPOLATE_`** constants
返回值
成功时返回 true
。
Imagick::setImageIterations
Sets the image iterations
说明
public bool
Imagick::setImageIterations ( <span
class="methodparam">int $iterations
)
Sets the number of iterations an animated image is repeated.
参数
iterations
The number of iterations the image should loop over. Set to '0' to loop
continuously.
返回值
成功时返回 true
。
错误/异常
错误时抛出 ImagickException。
范例
示例 #1 Basic <span class="function">Imagick::setImageIterations usage
<?php
$imagick = new Imagick(realpath("Test.gif"));
$imagick = $imagick->coalesceImages();
$imagick->setImageIterations(1);
$imagick = $imagick->deconstructImages();
$imagick->writeImages('/path/to/save/OnceOnly.gif', true);
?>
Imagick::setImageMatte
Sets the image matte channel
说明
public bool
Imagick::setImageMatte ( <span
class="methodparam">bool $matte
)
Sets the image matte channel. 此方法在Imagick基于ImageMagick 6.2.9以上版本编译时可用。
参数
matte
True activates the matte channel and false disables it.
返回值
成功时返回 true
。
Imagick::setImageMatteColor
Sets the image matte color
Warning
此函数在 Imagick 3.4.4 中被 废弃,强烈建议不要应用此函数。
说明
public bool
Imagick::setImageMatteColor ( <span
class="methodparam">mixed $matte
)
Sets the image matte color.
参数
matte
返回值
成功时返回 true
。
错误/异常
错误时抛出 ImagickException。
更新日志
版本 | 说明 |
---|---|
PECL imagick 2.1.0 | Now allows a string representing the color as the parameter. Previous versions allow only an ImagickPixel object. |
Imagick::setImageOpacity
Sets the image opacity level
Warning
此函数在 Imagick 3.4.4 中被 废弃,强烈建议不要应用此函数。
说明
public bool
Imagick::setImageOpacity ( <span
class="methodparam">float $opacity
)
Sets the image to the specified opacity level. 此方法在Imagick基于ImageMagick 6.3.1以上版本编译时可用。 This method operates on all channels, which means that for example opacity value of 0.5 will set all transparent areas to partially opaque. To add transparency to areas that are not already transparent use Imagick::evaluateImage()
参数
opacity
The level of transparency: 1.0 is fully opaque and 0.0 is fully
transparent.
返回值
成功时返回 true
。
范例
示例 #1 A Imagick::setImageOpacity example
An example of using Imagick::setImageOpacity()
<?php
/* Create the object */
$image = new Imagick('source.png');
/* Set the opacity */
$image->setImageOpacity(0.7);
/* output the image */
header('Content-type: image/png');
echo $image;
?>
Imagick::setImageOrientation
Sets the image orientation
说明
public bool
Imagick::setImageOrientation ( <span
class="methodparam">int $orientation
)
Sets the image orientation.
参数
orientation
One of the
orientation constants
返回值
成功时返回 true
。
范例
示例 #1 Imagick::setImageOrientation
<?php
//Doesn't appear to do anything
function setImageOrientation($imagePath, $orientationType) {
$imagick = new \Imagick(realpath($imagePath));
$imagick->setImageOrientation($orientationType);
header("Content-Type: image/jpg");
echo $imagick->getImageBlob();
}
?>
Imagick::setImagePage
Sets the page geometry of the image
说明
public bool
Imagick::setImagePage ( <span
class="methodparam">int $width
,
int $height
, int $x
,
int $y
)
Sets the page geometry of the image.
参数
width
height
x
y
返回值
成功时返回 true
。
错误/异常
错误时抛出 ImagickException。
Imagick::setImageProfile
Adds a named profile to the Imagick object
说明
public bool
Imagick::setImageProfile ( <span
class="methodparam">string $name
,
string
$profile
)
Adds a named profile to the Imagick object. If a profile with the same name already exists, it is replaced. This method differs from the Imagick::ProfileImage() method in that it does not apply any CMS color profiles.
参数
name
profile
返回值
成功时返回 true
。
错误/异常
错误时抛出 ImagickException。
Imagick::setImageProperty
Sets an image property
说明
public bool
Imagick::setImageProperty ( <span
class="methodparam">string $name
,
string
$value
)
Sets a named property to the image. 此方法在Imagick基于ImageMagick 6.3.2以上版本编译时可用。
参数
name
value
范例
示例 #1 Using <span class="function">Imagick::setImageProperty:
Setting and getting image properties
<?php
$image = new Imagick();
$image->newImage(300, 200, "black");
$image->setImageProperty('Exif:Make', 'Imagick');
echo $image->getImageProperty('Exif:Make');
?>
参见
- Imagick::getImageProperty
返回值
成功时返回 true
。
Imagick::setImageRedPrimary
Sets the image chromaticity red primary point
说明
public bool
Imagick::setImageRedPrimary ( <span
class="methodparam">float $x
, <span
class="methodparam">float $y
)
Sets the image chromaticity red primary point.
参数
x
y
返回值
成功时返回 true
。
错误/异常
错误时抛出 ImagickException。
Imagick::setImageRenderingIntent
Sets the image rendering intent
说明
public bool
Imagick::setImageRenderingIntent ( <span
class="methodparam">int
$rendering_intent
)
Sets the image rendering intent.
参数
rendering_intent
返回值
成功时返回 true
。
错误/异常
错误时抛出 ImagickException。
Imagick::setImageResolution
Sets the image resolution
说明
public bool
Imagick::setImageResolution ( <span
class="methodparam">float
$x_resolution
, <span
class="type">float $y_resolution
)
Sets the image resolution.
参数
x_resolution
y_resolution
返回值
成功时返回 true
。
错误/异常
错误时抛出 ImagickException。
范例
示例 #1 Imagick::setImageResolution
<?php
function setImageResolution($imagePath) {
$imagick = new \Imagick(realpath($imagePath));
$imagick->setImageResolution(50, 50);
header("Content-Type: image/jpg");
echo $imagick->getImageBlob();
}
?>
Imagick::setImageScene
Sets the image scene
说明
public bool
Imagick::setImageScene ( <span
class="methodparam">int $scene
)
Sets the image scene.
参数
scene
返回值
成功时返回 true
。
错误/异常
错误时抛出 ImagickException。
Imagick::setImageTicksPerSecond
Sets the image ticks-per-second
说明
public bool
Imagick::setImageTicksPerSecond ( <span
class="methodparam">int
$ticks_per_second
)
Adjust the amount of time that a frame of an animated image is displayed for.
Note:
For animated GIFs, this function does not change the number of 'image ticks' per second, which is always defined as 100. Instead it adjusts the amount of time that the frame is displayed for to simulate the change in 'ticks per second'.
For example, for an animated GIF where each frame is displayed for 20 ticks (1/5 of a second) when this method is called on each frame of that image with an argument of 50 the frames are adjusted to be displayed for 40 ticks (2/5 of a second) and the animation will play at half the original speed.
参数
ticks_per_second
The duration for which an image should be displayed expressed in ticks
per second.
返回值
成功时返回 true
。
范例
示例 #1 Modify animated Gif with <span class="function">Imagick::setImageTicksPerSecond
<?php
// Modify an animated gif so the first half of the gif is played at half the
// speed it currently is, and the second half to be played at double the speed
// it currently is
$imagick = new Imagick(realpath("Test.gif"));
$imagick = $imagick->coalesceImages();
$totalFrames = $imagick->getNumberImages();
$frameCount = 0;
foreach ($imagick as $frame) {
$imagick->setImageTicksPerSecond(50);
if ($frameCount < ($totalFrames / 2)) {
// Modify the frame to be displayed for twice as long as it currently is
$imagick->setImageTicksPerSecond(50);
} else {
// Modify the frame to be displayed for half as long as it currently is
$imagick->setImageTicksPerSecond(200);
}
$frameCount++;
}
$imagick = $imagick->deconstructImages();
$imagick->writeImages("/path/to/save/output.gif", true);
?>
Imagick::setImageType
Sets the image type
说明
public bool
Imagick::setImageType ( <span
class="methodparam">int $image_type
)
Sets the image type.
参数
image_type
返回值
成功时返回 true
。
Imagick::setImageUnits
Sets the image units of resolution
说明
public bool
Imagick::setImageUnits ( <span
class="methodparam">int $units
)
Sets the image units of resolution.
参数
units
返回值
成功时返回 true
。
Imagick::setImageVirtualPixelMethod
Sets the image virtual pixel method
说明
public bool
Imagick::setImageVirtualPixelMethod (
int $method
)
Sets the image virtual pixel method.
参数
method
返回值
成功时返回 true
。
Imagick::setImageWhitePoint
Sets the image chromaticity white point
说明
public bool
Imagick::setImageWhitePoint ( <span
class="methodparam">float $x
, <span
class="methodparam">float $y
)
Sets the image chromaticity white point.
参数
x
y
返回值
成功时返回 true
。
错误/异常
错误时抛出 ImagickException。
Imagick::setInterlaceScheme
Sets the image compression
说明
public bool
Imagick::setInterlaceScheme ( <span
class="methodparam">int
$interlace_scheme
)
Sets the image compression.
参数
interlace_scheme
返回值
成功时返回 true
。
Imagick::setIteratorIndex
Set the iterator position
说明
public bool
Imagick::setIteratorIndex ( <span
class="methodparam">int $index
)
Set the iterator to the position in the image list specified with the index parameter. 此方法在Imagick基于ImageMagick 6.2.9以上版本编译时可用。
参数
index
The position to set the iterator to
返回值
成功时返回 true
。
范例
示例 #1 Using <span class="function">Imagick::setIteratorIndex:
Create images, set and get the iterator index
<?php
$im = new Imagick();
$im->newImage(100, 100, new ImagickPixel("red"));
$im->newImage(100, 100, new ImagickPixel("green"));
$im->newImage(100, 100, new ImagickPixel("blue"));
$im->setIteratorIndex(1);
echo $im->getIteratorIndex();
?>
参见
- Imagick::getIteratorIndex
- Imagick::getImageIndex
- Imagick::setImageIndex
Imagick::setLastIterator
Sets the Imagick iterator to the last image
说明
public bool Imagick::setLastIterator ( <span class="methodparam">void )
Sets the Imagick iterator to the last image.
返回值
成功时返回 true
。
Imagick::setOption
Set an option
说明
public bool
Imagick::setOption ( <span
class="methodparam">string $key
,
string
$value
)
Associates one or more options with the wand.
参数
key
value
返回值
成功时返回 true
。
范例
示例 #1 Attempt to reach '$extent' size<span class="function">Imagick::setOption
<?php
function renderJPG($extent) {
$imagePath = $this->control->getImagePath();
$imagick = new \Imagick(realpath($imagePath));
$imagick->setImageFormat('jpg');
$imagick->setOption('jpeg:extent', $extent);
header("Content-Type: image/jpg");
echo $imagick->getImageBlob();
}
?>
示例 #2 Imagick::setOption
<?php
function renderPNG($imagePath, $format) {
$imagick = new \Imagick(realpath($imagePath));
$imagick->setImageFormat('png');
$imagick->setOption('png:format', $format);
header("Content-Type: image/png");
echo $imagick->getImageBlob();
}
//Save as 64bit PNG.
renderPNG($imagePath, 'png64');
?>
示例 #3 Imagick::setOption
<?php
function renderCustomBitDepthPNG() {
$imagePath = $this->control->getImagePath();
$imagick = new \Imagick(realpath($imagePath));
$imagick->setImageFormat('png');
$imagick->setOption('png:bit-depth', '16');
$imagick->setOption('png:color-type', 6);
header("Content-Type: image/png");
$crash = true;
if ($crash) {
echo $imagick->getImageBlob();
}
else {
$tempFilename = tempnam('./', 'imagick');
$imagick->writeimage(realpath($tempFilename));
echo file_get_contents($tempFilename);
}
}
?>
Imagick::setPage
Sets the page geometry of the Imagick object
说明
public bool
Imagick::setPage ( <span
class="methodparam">int $width
,
int $height
, int $x
,
int $y
)
Sets the page geometry of the Imagick object.
参数
width
height
x
y
返回值
成功时返回 true
。
Imagick::setPointSize
Sets point size
说明
public bool
Imagick::setPointSize ( <span
class="methodparam">float $point_size
)
Sets object's point size property. This method can be used for example to set font size for caption: pseudo-format. 此方法在Imagick基于ImageMagick 6.3.7以上版本编译时可用。
参数
point_size
Point size
返回值
成功时返回 true
。
参见
- Imagick::getPointSize
范例
示例 #1 A Imagick::setPointSize example
Example of using Imagick::setPointSize
<?php
/* Create new imagick object */
$im = new Imagick();
/* Set the font for the object */
$im->setFont("example.ttf");
/* Set the point size */
$im->setPointSize(12);
/* Create new caption */
$im->newPseudoImage(100, 100, "caption:Hello");
/* Do something with the image */
?>
Imagick::setProgressMonitor
Description
说明
public bool
Imagick::setProgressMonitor ( <span
class="methodparam">callable
$callback
)
Set a callback that will be called during the processing of the Imagick image.
参数
callback
The progress function to call. It should return true if image processing
should continue, or false if it should be cancelled. The offset
parameter indicates the progress and the span parameter indicates the
total amount of work needed to be done.
bool <span
class="replaceable">callback (
mixed $offset
, <span
class="methodparam"> mixed $span
)
Caution The values passed to the callback function are not consistent. In particular the span parameter can increase during image processing. Because of this calculating the percentage complete of an image operation is not trivial.
返回值
成功时返回 true
。
范例
示例 #1 Imagick::setProgressMonitor
<?php
$abortReason = null;
try {
$imagick = new \Imagick(realpath($this->control->getImagePath()));
$startTime = time();
$callback = function ($offset, $span) use ($startTime, &$abortReason) {
if (((100 * $offset) / $span) > 20) {
$abortReason = "Processing reached 20%";
return false;
}
$nowTime = time();
if ($nowTime - $startTime > 5) {
$abortReason = "Image processing took more than 5 seconds";
return false;
}
if (($offset % 5) == 0) {
echo "Progress: $offset / $span <br/>";
}
return true;
};
$imagick->setProgressMonitor($callback);
$imagick->waveImage(2, 15);
echo "Data len is: ".strlen($imagick->getImageBlob());
}
catch(\ImagickException $e) {
if ($abortReason != null) {
echo "Image processing was aborted: ".$abortReason."<br/>";
}
else {
echo "ImagickException caught: ".$e->getMessage()." Exception type is ".get_class($e);
}
}
?>
Imagick::setRegistry
Description
说明
public <span
class="modifier">static bool <span
class="methodname">Imagick::setRegistry ( <span
class="methodparam">string $key
,
string
$value
)
Sets the ImageMagick registry entry named key to value. This is most useful for setting "temporary-path" which controls where ImageMagick creates temporary images e.g. while processing PDFs.
参数
key
value
返回值
成功时返回 true
。
Imagick::setResolution
Sets the image resolution
说明
public bool
Imagick::setResolution ( <span
class="methodparam">float
$x_resolution
, <span
class="type">float $y_resolution
)
Sets the image resolution.
参数
x_resolution
The horizontal resolution.
y_resolution
The vertical resolution.
返回值
成功时返回 true
。
注释
Imagick::setResolution must be called before loading or creating an image.
参见
- Imagick::setImageResolution
- Imagick::getImageResolution
Imagick::setResourceLimit
Sets the limit for a particular resource
说明
public <span
class="modifier">static bool <span
class="methodname">Imagick::setResourceLimit ( <span
class="methodparam">int $type
, <span
class="methodparam">int $limit
)
This method is used to modify the resource limits of the underlying ImageMagick library.
参数
type
Refer to the list of
resourcetype constants.
limit
One of the
resourcetype constants.
The unit depends on the type of the resource being limited.
返回值
成功时返回 true
。
参见
- Imagick::getResourceLimit
Imagick::setSamplingFactors
Sets the image sampling factors
说明
public bool
Imagick::setSamplingFactors ( <span
class="methodparam">array $factors
)
Sets the image sampling factors.
参数
factors
返回值
成功时返回 true
。
范例
示例 #1 Imagick::setSamplingFactors
<?php
function setSamplingFactors($imagePath) {
$imagePath = "../imagick/images/FineDetail.png";
$imagick = new \Imagick(realpath($imagePath));
$imagick->setImageFormat('jpg');
$imagick->setSamplingFactors(array('2x2', '1x1', '1x1'));
$compressed = $imagick->getImageBlob();
$reopen = new \Imagick();
$reopen->readImageBlob($compressed);
$reopen->resizeImage(
$reopen->getImageWidth() * 4,
$reopen->getImageHeight() * 4,
\Imagick::FILTER_POINT,
1
);
header("Content-Type: image/jpg");
echo $reopen->getImageBlob();
}
?>
Imagick::setSize
Sets the size of the Imagick object
说明
public bool
Imagick::setSize ( <span
class="methodparam">int $columns
,
int $rows
)
Sets the size of the Imagick object. Set it before you read a raw image format such as RGB, GRAY, or CMYK.
参数
columns
rows
返回值
成功时返回 true
。
Imagick::setSizeOffset
Sets the size and offset of the Imagick object
说明
public bool
Imagick::setSizeOffset ( <span
class="methodparam">int $columns
,
int $rows
,
int $offset
)
Sets the size and offset of the Imagick object. Set it before you read a raw image format such as RGB, GRAY, or CMYK. 此方法在Imagick基于ImageMagick 6.2.9以上版本编译时可用。
参数
columns
The width in pixels.
rows
The height in pixels.
offset
The image offset.
返回值
成功时返回 true
。
Imagick::setType
Sets the image type attribute
说明
public bool
Imagick::setType ( <span
class="methodparam">int $image_type
)
Sets the image type attribute.
参数
image_type
返回值
成功时返回 true
。
Imagick::shadeImage
Creates a 3D effect
说明
public bool
Imagick::shadeImage ( <span
class="methodparam">bool $gray
,
float
$azimuth
, <span
class="type">float $elevation
)
Shines a distant light on an image to create a three-dimensional effect. You control the positioning of the light with azimuth and elevation; azimuth is measured in degrees off the x axis and elevation is measured in pixels above the Z axis. 此方法在Imagick基于ImageMagick 6.2.9以上版本编译时可用。
参数
gray
A value other than zero shades the intensity of each pixel.
azimuth
Defines the light source direction.
elevation
Defines the light source direction.
返回值
成功时返回 true
。
错误/异常
Throws ImagickException on failure.
范例
示例 #1 Imagick::shadeImage
<?php
function shadeImage($imagePath) {
$imagick = new \Imagick(realpath($imagePath));
$imagick->shadeImage(true, 45, 20);
header("Content-Type: image/jpg");
echo $imagick->getImageBlob();
}
?>
Imagick::shadowImage
Simulates an image shadow
说明
public bool
Imagick::shadowImage ( <span
class="methodparam">float $opacity
,
float
$sigma
, <span
class="type">int $x
, <span
class="type">int $y
)
Simulates an image shadow.
参数
opacity
sigma
x
y
返回值
成功时返回 true
。
范例
示例 #1 Imagick::shadowImage
<?php
function shadowImage($imagePath) {
$imagick = new \Imagick(realpath($imagePath));
$imagick->shadowImage(0.4, 10, 50, 5);
header("Content-Type: image/jpg");
echo $imagick->getImageBlob();
}
?>
Imagick::sharpenImage
Sharpens an image
说明
public bool
Imagick::sharpenImage ( <span
class="methodparam">float $radius
,
float
$sigma
[, <span
class="type">int $channel
=
Imagick::CHANNEL_DEFAULT ] )
Sharpens an image. We convolve the image with a Gaussian operator of the given radius and standard deviation (sigma). For reasonable results, the radius should be larger than sigma. Use a radius of 0 and <span class="function">Imagick::sharpenImage selects a suitable radius for you.
参数
radius
sigma
channel
返回值
成功时返回 true
。
范例
示例 #1 Imagick::sharpenImage
<?php
function sharpenImage($imagePath, $radius, $sigma, $channel) {
$imagick = new \Imagick(realpath($imagePath));
$imagick->sharpenimage($radius, $sigma, $channel);
header("Content-Type: image/jpg");
echo $imagick->getImageBlob();
}
?>
Imagick::shaveImage
Shaves pixels from the image edges
说明
public bool
Imagick::shaveImage ( <span
class="methodparam">int $columns
,
int $rows
)
Shaves pixels from the image edges. It allocates the memory necessary for the new Image structure and returns a pointer to the new image.
参数
columns
rows
返回值
成功时返回 true
。
范例
示例 #1 Imagick::shaveImage
<?php
function shaveImage($imagePath) {
$imagick = new \Imagick(realpath($imagePath));
$imagick->shaveImage(100, 50);
header("Content-Type: image/jpg");
echo $imagick->getImageBlob();
}
?>
Imagick::shearImage
Creating a parallelogram
说明
public bool
Imagick::shearImage ( <span
class="methodparam">mixed $background
, float
$x_shear
, <span
class="type">float $y_shear
)
Slides one edge of an image along the X or Y axis, creating a parallelogram. An X direction shear slides an edge along the X axis, while a Y direction shear slides an edge along the Y axis. The amount of the shear is controlled by a shear angle. For X direction shears, x_shear is measured relative to the Y axis, and similarly, for Y direction shears y_shear is measured relative to the X axis. Empty triangles left over from shearing the image are filled with the background color.
参数
background
The background color
x_shear
The number of degrees to shear on the x axis
y_shear
The number of degrees to shear on the y axis
返回值
成功时返回 true
。
更新日志
版本 | 说明 |
---|---|
PECL imagick 2.1.0 | Now allows a string representing the color as the first parameter. Previous versions allow only an ImagickPixel object. |
范例
示例 #1 Imagick::shearImage
<?php
function shearImage($imagePath, $color, $shearX, $shearY) {
$imagick = new \Imagick(realpath($imagePath));
$imagick->shearimage($color, $shearX, $shearY);
header("Content-Type: image/jpg");
echo $imagick->getImageBlob();
}
?>
Imagick::sigmoidalContrastImage
Adjusts the contrast of an image
说明
public bool
Imagick::sigmoidalContrastImage ( <span
class="methodparam">bool $sharpen
,
float
$alpha
, <span
class="type">float $beta
[, <span
class="methodparam">int $channel
<span
class="initializer"> = Imagick::CHANNEL_DEFAULT ] )
Adjusts the contrast of an image with a non-linear sigmoidal contrast
algorithm. Increase the contrast of the image using a sigmoidal transfer
function without saturating highlights or shadows. Contrast indicates
how much to increase the contrast (0 is none; 3 is typical; 20 is
pushing it); mid-point indicates where midtones fall in the resultant
image (0 is white; 50 is middle-gray; 100 is black). Set sharpen to
true
to increase the image contrast otherwise the contrast is
reduced.
See also » ImageMagick v6 Examples - Image Transformations — Sigmoidal Non-linearity Contrast
参数
sharpen
If true increase the contrast, if false decrease the contrast.
alpha
The amount of contrast to apply. 1 is very little, 5 is a significant
amount, 20 is extreme.
beta
Where the midpoint of the gradient will be. This value should be in the
range 0 to 1 - mutliplied by the quantum value for ImageMagick.
channel
Which color channels the contrast will be applied to.
返回值
成功时返回 true
。
范例
示例 #1 Create a gradient image using <span class="function">Imagick::sigmoidalContrastImage suitable for blending two images together smoothly, with the blending defined by $contrast and $the midpoint
<?php
function generateBlendImage($width, $height, $contrast = 10, $midpoint = 0.5) {
$imagick = new Imagick();
$imagick->newPseudoImage($width, $height, 'gradient:black-white');
$quanta = $imagick->getQuantumRange();
$imagick->sigmoidalContrastImage(true, $contrast, $midpoint * $quanta["quantumRangeLong"]);
return $imagick;
}
?>
错误/异常
错误时抛出 ImagickException。
Imagick::sketchImage
Simulates a pencil sketch
说明
public bool
Imagick::sketchImage ( <span
class="methodparam">float $radius
,
float
$sigma
, <span
class="type">float $angle
)
Simulates a pencil sketch. We convolve the image with a Gaussian operator of the given radius and standard deviation (sigma). For reasonable results, radius should be larger than sigma. Use a radius of 0 and Imagick::sketchImage() selects a suitable radius for you. Angle gives the angle of the blurring motion. 此方法在Imagick基于ImageMagick 6.2.9以上版本编译时可用。
参数
radius
The radius of the Gaussian, in pixels, not counting the center pixel
sigma
The standard deviation of the Gaussian, in pixels.
angle
Apply the effect along this angle.
返回值
成功时返回 true
。
范例
示例 #1 Imagick::sketchImage
<?php
function sketchImage($imagePath, $radius, $sigma, $angle) {
$imagick = new \Imagick(realpath($imagePath));
$imagick->sketchimage($radius, $sigma, $angle);
header("Content-Type: image/jpg");
echo $imagick->getImageBlob();
}
?>
Imagick::smushImages
Description
说明
public Imagick
Imagick::smushImages ( <span
class="methodparam">bool $stack
,
int $offset
)
Takes all images from the current image pointer to the end of the image list and smushs them to each other top-to-bottom if the stack parameter is true, otherwise left-to-right.
参数
stack
offset
返回值
The new smushed image.
范例
示例 #1 Imagick::smushImages
<?php
function smushImages($imagePath, $imagePath2) {
$imagick = new \Imagick(realpath($imagePath));
$imagick2 = new \Imagick(realpath($imagePath2));
$imagick->addimage($imagick2);
$smushed = $imagick->smushImages(false, 50);
$smushed->setImageFormat('jpg');
header("Content-Type: image/jpg");
echo $smushed->getImageBlob();
}
?>
Imagick::solarizeImage
Applies a solarizing effect to the image
说明
public bool
Imagick::solarizeImage ( <span
class="methodparam">int $threshold
)
Applies a special effect to the image, similar to the effect achieved in a photo darkroom by selectively exposing areas of photo sensitive paper to light. Threshold ranges from 0 to QuantumRange and is a measure of the extent of the solarization.
参数
threshold
返回值
成功时返回 true
。
范例
示例 #1 Imagick::solarizeImage
<?php
function solarizeImage($imagePath, $solarizeThreshold) {
$imagick = new \Imagick(realpath($imagePath));
$imagick->solarizeImage($solarizeThreshold * \Imagick::getQuantum());
header("Content-Type: image/jpg");
echo $imagick->getImageBlob();
}
?>
Imagick::sparseColorImage
Interpolates colors
说明
public bool
Imagick::sparseColorImage ( <span
class="methodparam">int
$SPARSE_METHOD
, <span
class="type">array $arguments
[, <span
class="methodparam">int $channel
<span
class="initializer"> = Imagick::CHANNEL_DEFAULT ] )
Given the arguments array containing numeric values this method
interpolates the colors found at those coordinates across the whole
image using sparse_method
. 此方法在Imagick基于ImageMagick
6.4.5以上版本编译时可用。
参数
SPARSE_METHOD
Refer to this list of
sparse method constants
arguments
An array containing the coordinates. The array is in format array(1,1,
2,45)
channel
Provide any channel constant that is valid for your channel mode. To
apply to more than one channel, combine
channel constants
using bitwise operators. 缺省为Imagick::CHANNEL_DEFAULT
. 参考此
通道常数列表
返回值
成功时返回 true
。
错误/异常
错误时抛出 ImagickException。
范例
示例 #1 SPARSECOLORMETHOD_BARYCENTRIC <span class="function">Imagick::sparseColorImage
<?php
function renderImageBarycentric2() {
$points = [
[0.30, 0.10, 'red'],
[0.10, 0.80, 'blue'],
[0.70, 0.60, 'lime'],
[0.80, 0.20, 'yellow'],
];
$imagick = createGradientImage(
400, 400,
$points,
\Imagick::SPARSECOLORMETHOD_BARYCENTRIC
);
header("Content-Type: image/png");
echo $imagick->getImageBlob();
}
?>
示例 #2 SPARSECOLORMETHOD_BILINEAR <span class="function">Imagick::sparseColorImage
<?php
function renderImageBilinear() {
$points = [[0.30, 0.10, 'red'], [0.10, 0.80, 'blue'], [0.70, 0.60, 'lime'], [0.80, 0.20, 'yellow'],];
$imagick = createGradientImage(500, 500, $points, \Imagick::SPARSECOLORMETHOD_BILINEAR);
header("Content-Type: image/png");
echo $imagick->getImageBlob();
}
?>
示例 #3 SPARSECOLORMETHOD_SPEPARDS <span class="function">Imagick::sparseColorImage
<?php
function renderImageShepards() {
$points = [
[0.30, 0.10, 'red'],
[0.10, 0.80, 'blue'],
[0.70, 0.60, 'lime'],
[0.80, 0.20, 'yellow'],
];
$imagick = createGradientImage(600, 600, $points, \Imagick::SPARSECOLORMETHOD_SPEPARDS);
header("Content-Type: image/png");
echo $imagick->getImageBlob();
}
?>
示例 #4 SPARSECOLORMETHOD_VORONOI <span class="function">Imagick::sparseColorImage
<?php
function renderImageVoronoi() {
$points = [
[0.30, 0.10, 'red'],
[0.10, 0.80, 'blue'],
[0.70, 0.60, 'lime'],
[0.80, 0.20, 'yellow'],
];
$imagick = createGradientImage(500, 500, $points, \Imagick::SPARSECOLORMETHOD_VORONOI);
header("Content-Type: image/png");
echo $imagick->getImageBlob();
}
?>
示例 #5 SPARSECOLORMETHOD_BARYCENTRIC <span class="function">Imagick::sparseColorImage
<?php
function renderImageBarycentric() {
$points = [
[0, 0, 'skyblue'],
[-1, 1, 'skyblue'],
[1, 1, 'black'],
];
$imagick = createGradientImage(600, 200, $points, \Imagick::SPARSECOLORMETHOD_BARYCENTRIC);
header("Content-Type: image/png");
echo $imagick->getImageBlob();
}
?>
示例 #6 createGradientImage is used by other examples. <span class="function">Imagick::sparseColorImage
<?php
function createGradientImage($width, $height, $colorPoints, $sparseMethod, $absolute = false) {
$imagick = new \Imagick();
$imagick->newImage($width, $height, "white");
$imagick->setImageFormat("png");
$barycentricPoints = array();
foreach ($colorPoints as $colorPoint) {
if ($absolute == true) {
$barycentricPoints[] = $colorPoint[0];
$barycentricPoints[] = $colorPoint[1];
}
else {
$barycentricPoints[] = $colorPoint[0] * $width;
$barycentricPoints[] = $colorPoint[1] * $height;
}
if (is_string($colorPoint[2])) {
$imagickPixel = new \ImagickPixel($colorPoint[2]);
}
else if ($colorPoint[2] instanceof \ImagickPixel) {
$imagickPixel = $colorPoint[2];
}
else{
$errorMessage = sprintf(
"Value %s is neither a string nor an ImagickPixel class. Cannot use as a color.",
$colorPoint[2]
);
throw new \InvalidArgumentException(
$errorMessage
);
}
$red = $imagickPixel->getColorValue(\Imagick::COLOR_RED);
$green = $imagickPixel->getColorValue(\Imagick::COLOR_GREEN);
$blue = $imagickPixel->getColorValue(\Imagick::COLOR_BLUE);
$alpha = $imagickPixel->getColorValue(\Imagick::COLOR_ALPHA);
$barycentricPoints[] = $red;
$barycentricPoints[] = $green;
$barycentricPoints[] = $blue;
$barycentricPoints[] = $alpha;
}
$imagick->sparseColorImage($sparseMethod, $barycentricPoints);
return $imagick;
}
?>
Imagick::spliceImage
Splices a solid color into the image
说明
public bool
Imagick::spliceImage ( <span
class="methodparam">int $width
,
int $height
, int $x
,
int $y
)
Splices a solid color into the image.
参数
width
height
x
y
返回值
成功时返回 true
。
范例
示例 #1 Imagick::spliceImage
<?php
function spliceImage($imagePath, $startX, $startY, $width, $height) {
$imagick = new \Imagick(realpath($imagePath));
$imagick->spliceImage($width, $height, $startX, $startY);
header("Content-Type: image/jpg");
echo $imagick->getImageBlob();
}
?>
Imagick::spreadImage
Randomly displaces each pixel in a block
说明
public bool
Imagick::spreadImage ( <span
class="methodparam">float $radius
)
Special effects method that randomly displaces each pixel in a block defined by the radius parameter.
参数
radius
返回值
成功时返回 true
。
错误/异常
错误时抛出 ImagickException。
范例
示例 #1 Imagick::spreadImage
<?php
function spreadImage($imagePath, $radius) {
$imagick = new \Imagick(realpath($imagePath));
$imagick->spreadImage($radius);
header("Content-Type: image/jpg");
echo $imagick->getImageBlob();
}
?>
Imagick::statisticImage
Description
说明
public bool
Imagick::statisticImage ( <span
class="methodparam">int $type
, <span
class="methodparam">int $width
,
int $height
[, int
$channel
=
Imagick::CHANNEL_DEFAULT ] )
Replace each pixel with corresponding statistic from the neighborhood of the specified width and height.
参数
type
width
height
channel
返回值
成功时返回 true
。
范例
示例 #1 Imagick::statisticImage
<?php
function statisticImage($imagePath, $statisticType, $width, $height, $channel) {
$imagick = new \Imagick(realpath($imagePath));
$imagick->statisticImage(
$statisticType,
$width,
$height,
$channel
);
header("Content-Type: image/jpg");
echo $imagick->getImageBlob();
}
statisticImage($imagePath, \Imagick::STATISTIC_MEDIAN, 5, 5, \Imagick::CHANNEL_DEFAULT);
?>
Imagick::steganoImage
Hides a digital watermark within the image
说明
public Imagick
Imagick::steganoImage ( <span
class="methodparam">Imagick
$watermark_wand
, <span
class="type">int $offset
)
Hides a digital watermark within the image. Recover the hidden watermark later to prove that the authenticity of an image. Offset defines the start position within the image to hide the watermark.
参数
watermark_wand
offset
返回值
成功时返回 true
。
Imagick::stereoImage
Composites two images
说明
public bool
Imagick::stereoImage ( <span
class="methodparam">Imagick
$offset_wand
)
Composites two images and produces a single image that is the composite of a left and right image of a stereo pair.
参数
offset_wand
返回值
成功时返回 true
。
错误/异常
错误时抛出 ImagickException。
Imagick::stripImage
去掉图片的所有配置和设置
说明
bool <span class="methodname">Imagick::stripImage ( <span class="methodparam">void )
去掉图片的所有配置和设置
返回值
成功时返回 true
。
错误/异常
错误时抛出 ImagickException。
Imagick::subImageMatch
Description
说明
public Imagick
Imagick::subImageMatch ( <span
class="methodparam">Imagick $Imagick
[, array
&$offset
[, <span
class="type">float &$similarity
]] )
Searches for a subimage in the current image and returns a similarity image such that an exact match location is completely white and if none of the pixels match, black, otherwise some gray level in-between. You can also pass in the optional parameters bestMatch and similarity. After calling the function similarity will be set to the 'score' of the similarity between the subimage and the matching position in the larger image, bestMatch will contain an associative array with elements x, y, width, height that describe the matching region.
参数
Imagick
offset
similarity
A new image that displays the amount of similarity at each pixel.
返回值
范例
示例 #1 Imagick::subImageMatch
<?php
function subImageMatch($imagePath) {
$imagick = new \Imagick(realpath($imagePath));
$imagick2 = clone $imagick;
$imagick2->cropimage(40, 40, 250, 110);
$imagick2->vignetteimage(0, 1, 3, 3);
$similarity = null;
$bestMatch = null;
$comparison = $imagick->subImageMatch($imagick2, $bestMatch, $similarity);
$comparison->setImageFormat('png');
header("Content-Type: image/png");
echo $imagick->getImageBlob();
}
?>
Imagick::swirlImage
Swirls the pixels about the center of the image
说明
bool <span
class="methodname">Imagick::swirlImage ( <span
class="methodparam">float $degrees
)
Swirls the pixels about the center of the image, where degrees indicates the sweep of the arc through which each pixel is moved. You get a more dramatic effect as the degrees move from 1 to 360.
参数
degrees
返回值
成功时返回 true
。
错误/异常
错误时抛出 ImagickException。
范例
示例 #1 Imagick::swirlImage
<?php
function swirlImage($imagePath, $swirl) {
$imagick = new \Imagick(realpath($imagePath));
$imagick->swirlImage($swirl);
header("Content-Type: image/jpg");
echo $imagick->getImageBlob();
}
?>
Imagick::textureImage
Repeatedly tiles the texture image
说明
Imagick <span
class="methodname">Imagick::textureImage ( <span
class="methodparam">Imagick
$texture_wand
)
Repeatedly tiles the texture image across and down the image canvas.
参数
texture_wand
Imagick object to use as texture image
返回值
Returns a new Imagick object that has the repeated texture applied.
错误/异常
错误时抛出 ImagickException。
范例
示例 #1 Imagick::textureImage
<?php
function textureImage($imagePath) {
$image = new \Imagick();
$image->newImage(640, 480, new \ImagickPixel('pink'));
$image->setImageFormat("jpg");
$texture = new \Imagick(realpath($imagePath));
$texture->scaleimage($image->getimagewidth() / 4, $image->getimageheight() / 4);
$image = $image->textureImage($texture);
header("Content-Type: image/jpg");
echo $image;
}
?>
Imagick::thresholdImage
Changes the value of individual pixels based on a threshold
说明
public bool
Imagick::thresholdImage ( <span
class="methodparam">float $threshold
[, int
$channel
=
Imagick::CHANNEL_DEFAULT ] )
Changes the value of individual pixels based on the intensity of each pixel compared to threshold. The result is a high-contrast, two color image.
参数
threshold
channel
返回值
成功时返回 true
。
范例
示例 #1 Imagick::thresholdImage
<?php
function thresholdimage($imagePath, $threshold, $channel) {
$imagick = new \Imagick(realpath($imagePath));
$imagick->thresholdimage($threshold * \Imagick::getQuantum(), $channel);
header("Content-Type: image/jpg");
echo $imagick->getImageBlob();
}
?>
Imagick::thumbnailImage
Changes the size of an image
说明
public bool
Imagick::thumbnailImage ( <span
class="methodparam">int $columns
,
int $rows
[, bool
$bestfit
= false
[,
bool $fill
<span
class="initializer"> = false
[, <span
class="methodparam">bool $legacy
<span
class="initializer"> = false
]]] )
Changes the size of an image to the given dimensions and removes any
associated profiles. The goal is to produce small, low cost thumbnail
images suited for display on the Web. If true
is given as a third
parameter then columns and rows parameters are used as maximums for each
side. Both sides will be scaled down until they match or are smaller
than the parameter given for the side.
Note: 参数
bestfit
的特性在 Imagick 3.0.0 中已改变。在此版本以前,当目标尺寸设为 400x400 时,原尺寸为 200x150 的图像将不会被改变。自 Imagick 3.0.0 起,源图像将会被放大到 400x300 因为这将更好的适合目标尺寸。当使用参数bestfit
时,必须同时给出宽度和高度。
参数
columns
Image width
rows
Image height
bestfit
Whether to force maximum values
返回值
成功时返回 true
。
错误/异常
错误时抛出 ImagickException。
范例
示例 #1 Imagick::thumbnailImage
<?php
function thumbnailImage($imagePath) {
$imagick = new \Imagick(realpath($imagePath));
$imagick->setbackgroundcolor('rgb(64, 64, 64)');
$imagick->thumbnailImage(100, 100, true, true);
header("Content-Type: image/jpg");
echo $imagick->getImageBlob();
}
?>
Imagick::tintImage
Applies a color vector to each pixel in the image
说明
public bool
Imagick::tintImage ( <span
class="methodparam">mixed $tint
,
mixed
$opacity
[, <span
class="type">bool $legacy
=
false
] )
Applies a color vector to each pixel in the image. The length of the vector is 0 for black and white and at its maximum for the midtones. The vector weighing function is f(x)=(1-(4.0*((x-0.5)*(x-0.5)))).
参数
tint
opacity
返回值
成功时返回 true
。
错误/异常
错误时抛出 ImagickException。
更新日志
版本 | 说明 |
---|---|
PECL imagick 2.1.0 | Now allows a string representing the color as the first parameter and a float representing the opacity value as the second parameter. Previous versions allow only an ImagickPixel objects. |
范例
示例 #1 Imagick::tintImage
<?php
function tintImage($r, $g, $b, $a) {
$a = $a / 100;
$imagick = new \Imagick();
$imagick->newPseudoImage(400, 400, 'gradient:black-white');
$tint = new \ImagickPixel("rgb($r, $g, $b)");
$opacity = new \ImagickPixel("rgb(128, 128, 128, $a)");
$imagick->tintImage($tint, $opacity);
$imagick->setImageFormat('png');
header("Content-Type: image/png");
echo $imagick->getImageBlob();
}
?>
Imagick::__toString
Returns the image as a string
说明
public string Imagick::__toString ( <span class="methodparam">void )
Returns the current image as string. This will only return a single image; it should not be used for Imagick objects that contain multiple images e.g. an animated GIF or PDF with multiple pages.
参数
此函数没有参数。
返回值
Returns the string content on success or an empty string on failure.
参见
- Imagick::getImageBlob
- Imagick::getImagesBlob
Imagick::transformImage
Convenience method for setting crop size and the image geometry
Warning
此函数在 Imagick 3.4.4 中被 废弃,强烈建议不要应用此函数。
说明
public Imagick
Imagick::transformImage ( <span
class="methodparam">string $crop
,
string
$geometry
)
A convenience method for setting crop size and the image geometry from strings. 此方法在Imagick基于ImageMagick 6.2.9以上版本编译时可用。
参数
crop
A crop geometry string. This geometry defines a subregion of the image
to crop.
geometry
An image geometry string. This geometry defines the final size of the
image.
返回值
Returns an Imagick object containing the transformed image.
范例
示例 #1 Using <span class="function">Imagick::transformImage:
The example creates a 100x100 black image.
<?php
$image = new Imagick();
$image->newImage(300, 200, "black");
$new_image = $image->transformImage("100x100", "100x100");
$new_image->writeImage('test_out.jpg');
?>
参见
- Imagick::cropImage
- Imagick::resizeImage
- Imagick::thumbnailImage
Imagick::transformImageColorspace
Transforms an image to a new colorspace
说明
public bool
Imagick::transformImageColorspace (
int
$colorspace
)
Transforms an image to a new colorspace.
参数
colorspace
The colorspace the image should be transformed to, one of the
COLORSPACE constants
e.g. Imagick::COLORSPACE_CMYK.
返回值
成功时返回 true
。
范例
示例 #1 <span class="methodname">Imagick::transformImageColorspace example
Transforms an image to a new colorspace, and then extracts a single channel so that the individual channel values can be viewed.
<?php
function transformImageColorspace($imagePath, $colorSpace, $channel) {
$imagick = new \Imagick(realpath($imagePath));
$imagick->transformimagecolorspace($colorSpace);
//channel should be one of the channel constants e.g. \Imagick::CHANNEL_BLUE
$imagick->separateImageChannel($channel);
header("Content-Type: image/jpg");
echo $imagick->getImageBlob();
}
?>
参见
- Imagick::setColorSpace
范例
示例 #2 <span class="function">Imagick::transformImageColorspace
<?php
function transformImageColorspace($imagePath, $colorSpace, $channel) {
$imagick = new \Imagick(realpath($imagePath));
$imagick->transformimagecolorspace($colorSpace);
$imagick->separateImageChannel($channel);
header("Content-Type: image/jpg");
echo $imagick->getImageBlob();
}
?>
Imagick::transparentPaintImage
Paints pixels transparent
说明
public bool
Imagick::transparentPaintImage ( <span
class="methodparam">mixed $target
,
float
$alpha
, <span
class="type">float $fuzz
, <span
class="methodparam">bool $invert
)
Paints pixels matching the target color transparent. 此方法在Imagick基于ImageMagick 6.3.8以上版本编译时可用。
参数
target
The target color to paint
alpha
透明级别:1.0 是完全不透明,0.0 是完全透明。
fuzz
The amount of fuzz. For example, set fuzz to 10 and the color red at
intensities of 100 and 102 respectively are now interpreted as the same
color.
invert
If true
paints any pixel that does not match the target color.
返回值
成功时返回 true
。
范例
示例 #1 <span class="function">Imagick::transparentPaintImage
<?php
function transparentPaintImage($color, $alpha, $fuzz) {
$imagick = new \Imagick(realpath("images/BlueScreen.jpg"));
//Need to be in a format that supports transparency
$imagick->setimageformat('png');
$imagick->transparentPaintImage(
$color, $alpha, $fuzz * \Imagick::getQuantum(), false
);
//Not required, but helps tidy up left over pixels
$imagick->despeckleimage();
header("Content-Type: image/png");
echo $imagick->getImageBlob();
}
?>
Imagick::transposeImage
Creates a vertical mirror image
说明
public bool Imagick::transposeImage ( <span class="methodparam">void )
Creates a vertical mirror image by reflecting the pixels around the central x-axis while rotating them 90-degrees. 此方法在Imagick基于ImageMagick 6.2.9以上版本编译时可用。
返回值
成功时返回 true
。
参见
- Imagick::transverseImage
范例
示例 #1 Imagick::transposeImage
<?php
function transposeImage($imagePath) {
$imagick = new \Imagick(realpath($imagePath));
$imagick->transposeImage();
header("Content-Type: image/jpg");
echo $imagick->getImageBlob();
}
?>
Imagick::transverseImage
Creates a horizontal mirror image
说明
public bool Imagick::transverseImage ( <span class="methodparam">void )
Creates a horizontal mirror image by reflecting the pixels around the central y-axis while rotating them 270-degrees. 此方法在Imagick基于ImageMagick 6.2.9以上版本编译时可用。
返回值
成功时返回 true
。
参见
- Imagick::transposeImage
范例
示例 #1 Imagick::transverseImage
<?php
function transverseImage($imagePath) {
$imagick = new \Imagick(realpath($imagePath));
$imagick->transverseImage();
header("Content-Type: image/jpg");
echo $imagick->getImageBlob();
}
?>
Imagick::trimImage
Remove edges from the image
说明
public bool
Imagick::trimImage ( <span
class="methodparam">float $fuzz
)
Remove edges that are the background color from the image. 此方法在Imagick基于ImageMagick 6.2.9以上版本编译时可用。
参数
fuzz
By default target must match a particular pixel color exactly. However,
in many cases two colors may differ by a small amount. The fuzz member
of image defines how much tolerance is acceptable to consider two colors
as the same. This parameter represents the variation on the quantum
range.
返回值
成功时返回 true
。
错误/异常
错误时抛出 ImagickException。
范例
示例 #1 Using Imagick::trimImage:
Trim an image, then display to the browser.
<?php
/* Create the object and read the image in */
$im = new Imagick("image.jpg");
/* Trim the image. */
$im->trimImage(0);
/* Ouput the image */
header("Content-Type: image/" . $im->getImageFormat());
echo $im;
?>
参见
- Imagick::getQuantumDepth
- Imagick::getQuantumRange
- imagecropauto
Imagick::uniqueImageColors
Discards all but one of any pixel color
说明
public bool Imagick::uniqueImageColors ( <span class="methodparam">void )
Discards all but one of any pixel color. 此方法在Imagick基于ImageMagick 6.2.9以上版本编译时可用。
返回值
成功时返回 true
。
范例
示例 #1 Imagick::uniqueImageColors
<?php
function uniqueImageColors($imagePath) {
$imagick = new \Imagick(realpath($imagePath));
//Reduce the image to 256 colours nicely.
$imagick->quantizeImage(256, \Imagick::COLORSPACE_YIQ, 0, false, false);
$imagick->uniqueImageColors();
$imagick->scaleimage($imagick->getImageWidth(), $imagick->getImageHeight() * 20);
header("Content-Type: image/png");
echo $imagick->getImageBlob();
}
?>
Imagick::unsharpMaskImage
Sharpens an image
说明
public bool
Imagick::unsharpMaskImage ( <span
class="methodparam">float $radius
,
float
$sigma
, <span
class="type">float $amount
, <span
class="methodparam">float $threshold
[, int
$channel
=
Imagick::CHANNEL_DEFAULT ] )
Sharpens an image. We convolve the image with a Gaussian operator of the given radius and standard deviation (sigma). For reasonable results, radius should be larger than sigma. Use a radius of 0 and Imagick::UnsharpMaskImage() selects a suitable radius for you.
参数
radius
sigma
amount
threshold
channel
返回值
成功时返回 true
。
错误/异常
错误时抛出 ImagickException。
范例
示例 #1 Imagick::unsharpMaskImage
<?php
function unsharpMaskImage($imagePath, $radius, $sigma, $amount, $unsharpThreshold) {
$imagick = new \Imagick(realpath($imagePath));
$imagick->unsharpMaskImage($radius, $sigma, $amount, $unsharpThreshold);
header("Content-Type: image/jpg");
echo $imagick->getImageBlob();
}
?>
Imagick::valid
Checks if the current item is valid
说明
public bool Imagick::valid ( <span class="methodparam">void )
Checks if the current item is valid.
返回值
成功时返回 true
。
Imagick::vignetteImage
Adds vignette filter to the image
说明
public bool
Imagick::vignetteImage ( <span
class="methodparam">float $blackPoint
, float
$whitePoint
, <span
class="type">int $x
, <span
class="type">int $y
)
Softens the edges of the image in vignette style. 此方法在Imagick基于ImageMagick 6.2.9以上版本编译时可用。
参数
blackPoint
The black point.
whitePoint
The white point
x
X offset of the ellipse
y
Y offset of the ellipse
返回值
成功时返回 true
。
参见
- Imagick::waveImage
- Imagick::swirlImage
范例
示例 #1 Imagick::vignetteImage
<?php
function vignetteImage($imagePath, $blackPoint, $whitePoint, $x, $y) {
$imagick = new \Imagick(realpath($imagePath));
$imagick->vignetteImage($blackPoint, $whitePoint, $x, $y);
header("Content-Type: image/jpg");
echo $imagick->getImageBlob();
}
?>
Imagick::waveImage
Applies wave filter to the image
说明
public bool
Imagick::waveImage ( <span
class="methodparam">float $amplitude
, float
$length
)
Applies a wave filter to the image. 此方法在Imagick基于ImageMagick 6.2.9以上版本编译时可用。
参数
amplitude
The amplitude of the wave.
length
The length of the wave.
返回值
成功时返回 true
。
错误/异常
错误时抛出 ImagickException。
参见
- Imagick::solarizeImage
- Imagick::oilpaintImage
- Imagick::embossImage
- Imagick::addNoiseImage
- Imagick::swirlImage
范例
示例 #1 WaveImage can be quite slow <span class="function">Imagick::waveImage
<?php
function waveImage($imagePath, $amplitude, $length) {
$imagick = new \Imagick(realpath($imagePath));
$imagick->waveImage($amplitude, $length);
header("Content-Type: image/jpg");
echo $imagick->getImageBlob();
}
?>
Imagick::whiteThresholdImage
Force all pixels above the threshold into white
说明
public bool
Imagick::whiteThresholdImage ( <span
class="methodparam">mixed $threshold
)
Is like Imagick::ThresholdImage() but force all pixels above the threshold into white while leaving all pixels below the threshold unchanged.
参数
threshold
返回值
成功时返回 true
。
更新日志
版本 | 说明 |
---|---|
PECL imagick 2.1.0 | Now allows a string representing the color as a parameter. Previous versions allow only an ImagickPixel object. |
范例
示例 #1 Imagick::whiteThresholdImage
<?php
function whiteThresholdImage($imagePath, $color) {
$imagick = new \Imagick(realpath($imagePath));
$imagick->whiteThresholdImage($color);
header("Content-Type: image/jpg");
echo $imagick->getImageBlob();
}
?>
Imagick::writeImage
把图片写入指定的文件
说明
bool <span
class="methodname">Imagick::writeImage ([ <span
class="methodparam">string $filename
<span
class="initializer"> = NULL ] )
把图片写入指定的文件。如果指定文件参数的值是 NULL ,图片将会写入通过 Imagick::readImage() 或者 Imagick::setImageFilename() 设定的文件。
参数
filename
图片将被写入的文件名。文件的后缀指定了文件的类型。
可以强制指定图片的格式而不管文件的后缀名。在文件名前面加上一个前缀,例如
“jpg:test.png”。
返回值
成功时返回 true
。
Imagick::writeImageFile
Writes an image to a filehandle
说明
public bool
Imagick::writeImageFile ( <span
class="methodparam">resource
$filehandle
[, <span
class="type">string $format
] )
Writes the image sequence to an open filehandle. The handle must be opened with for example fopen. 此方法在Imagick基于ImageMagick 6.3.6以上版本编译时可用。
参数
filehandle
Filehandle where to write the image
返回值
成功时返回 true
。
Imagick::writeImages
Writes an image or image sequence
说明
public bool
Imagick::writeImages ( <span
class="methodparam">string $filename
, bool
$adjoin
)
Writes an image or image sequence.
参数
filename
adjoin
返回值
成功时返回 true
。
Imagick::writeImagesFile
Writes frames to a filehandle
说明
public bool
Imagick::writeImagesFile ( <span
class="methodparam">resource
$filehandle
[, <span
class="type">string $format
] )
Writes all image frames into an open filehandle. This method can be used to write animated gifs or other multiframe images into open filehandle. 此方法在Imagick基于ImageMagick 6.3.6以上版本编译时可用。
参数
filehandle
Filehandle where to write the images
返回值
成功时返回 true
。
类摘要
ImagickDraw
class ImagickDraw {
public bool
affine ( <span
class="type">array $affine
)
public bool
annotation ( <span
class="methodparam">float $x
, <span
class="methodparam">float $y
, <span
class="methodparam">string $text
)
public bool
arc ( <span
class="type">float $sx
, <span
class="type">float $sy
, <span
class="type">float $ex
, <span
class="type">float $ey
, <span
class="type">float $sd
, <span
class="type">float $ed
)
public bool
bezier ( <span
class="type">array $coordinates
)
public bool
circle ( <span
class="type">float $ox
, <span
class="type">float $oy
, <span
class="type">float $px
, <span
class="type">float $py
)
public bool clear ( <span class="methodparam">void )
public <span class="type">ImagickDraw clone ( void )
public bool
color ( <span
class="type">float $x
, <span
class="type">float $y
, <span
class="type">int $paintMethod
)
public bool
comment ( <span
class="methodparam">string $comment
)
public bool
composite ( <span
class="methodparam">int $compose
,
float $x
,
float $y
,
float
$width
, <span
class="type">float $height
, <span
class="methodparam">Imagick
$compositeWand
)
public <span class="methodname">__construct ( <span class="methodparam">void )
public bool destroy ( <span class="methodparam">void )
public bool
ellipse ( <span
class="methodparam">float $ox
, <span
class="methodparam">float $oy
, <span
class="methodparam">float $rx
, <span
class="methodparam">float $ry
, <span
class="methodparam">float $start
,
float $end
)
public string getClipPath ( <span class="methodparam">void )
public int <span class="methodname">getClipRule ( <span class="methodparam">void )
public int <span class="methodname">getClipUnits ( <span class="methodparam">void )
public <span class="type">ImagickPixel <span class="methodname">getFillColor ( <span class="methodparam">void )
public float getFillOpacity ( <span class="methodparam">void )
public int <span class="methodname">getFillRule ( <span class="methodparam">void )
public string getFont ( <span class="methodparam">void )
public string getFontFamily ( <span class="methodparam">void )
public float getFontSize ( <span class="methodparam">void )
public int <span class="methodname">getFontStretch ( <span class="methodparam">void )
public int <span class="methodname">getFontStyle ( <span class="methodparam">void )
public int <span class="methodname">getFontWeight ( <span class="methodparam">void )
public int <span class="methodname">getGravity ( <span class="methodparam">void )
public bool getStrokeAntialias ( <span class="methodparam">void )
public <span class="type">ImagickPixel <span class="methodname">getStrokeColor ( <span class="methodparam">void )
public array getStrokeDashArray ( <span class="methodparam">void )
public float getStrokeDashOffset ( <span class="methodparam">void )
public int <span class="methodname">getStrokeLineCap ( <span class="methodparam">void )
public int <span class="methodname">getStrokeLineJoin ( <span class="methodparam">void )
public int <span class="methodname">getStrokeMiterLimit ( <span class="methodparam">void )
public float getStrokeOpacity ( <span class="methodparam">void )
public float getStrokeWidth ( <span class="methodparam">void )
public int <span class="methodname">getTextAlignment ( <span class="methodparam">void )
public bool getTextAntialias ( <span class="methodparam">void )
public int <span class="methodname">getTextDecoration ( <span class="methodparam">void )
public string getTextEncoding ( <span class="methodparam">void )
public float getTextInterlineSpacing ( <span class="methodparam">void )
public float getTextInterwordSpacing ( <span class="methodparam">void )
public float getTextKerning ( <span class="methodparam">void )
public <span class="type">ImagickPixel <span class="methodname">getTextUnderColor ( <span class="methodparam">void )
public string getVectorGraphics ( <span class="methodparam">void )
public bool
line ( <span
class="type">float $sx
, <span
class="type">float $sy
, <span
class="type">float $ex
, <span
class="type">float $ey
)
public bool
matte ( <span
class="type">float $x
, <span
class="type">float $y
, <span
class="type">int $paintMethod
)
public bool pathClose ( <span class="methodparam">void )
public bool
pathCurveToAbsolute ( <span
class="methodparam">float $x1
, <span
class="methodparam">float $y1
, <span
class="methodparam">float $x2
, <span
class="methodparam">float $y2
, <span
class="methodparam">float $x
, <span
class="methodparam">float $y
)
public bool
pathCurveToQuadraticBezierAbsolute (
float $x1
,
float $y1
,
float $x
,
float $y
)
public bool
pathCurveToQuadraticBezierRelative (
float $x1
,
float $y1
,
float $x
,
float $y
)
public bool
pathCurveToQuadraticBezierSmoothAbsolute
( float $x
, float $y
)
public bool
pathCurveToQuadraticBezierSmoothRelative
( float $x
, float $y
)
public bool
pathCurveToRelative ( <span
class="methodparam">float $x1
, <span
class="methodparam">float $y1
, <span
class="methodparam">float $x2
, <span
class="methodparam">float $y2
, <span
class="methodparam">float $x
, <span
class="methodparam">float $y
)
public bool
pathCurveToSmoothAbsolute ( <span
class="methodparam">float $x2
, <span
class="methodparam">float $y2
, <span
class="methodparam">float $x
, <span
class="methodparam">float $y
)
public bool
pathCurveToSmoothRelative ( <span
class="methodparam">float $x2
, <span
class="methodparam">float $y2
, <span
class="methodparam">float $x
, <span
class="methodparam">float $y
)
public bool
pathEllipticArcAbsolute ( <span
class="methodparam">float $rx
, <span
class="methodparam">float $ry
, <span
class="methodparam">float
$x_axis_rotation
, <span
class="type">bool $large_arc_flag
, <span
class="methodparam">bool $sweep_flag
, float $x
, float $y
)
public bool
pathEllipticArcRelative ( <span
class="methodparam">float $rx
, <span
class="methodparam">float $ry
, <span
class="methodparam">float
$x_axis_rotation
, <span
class="type">bool $large_arc_flag
, <span
class="methodparam">bool $sweep_flag
, float $x
, float $y
)
public bool pathFinish ( <span class="methodparam">void )
public bool
pathLineToAbsolute ( <span
class="methodparam">float $x
, <span
class="methodparam">float $y
)
public bool
pathLineToHorizontalAbsolute ( <span
class="methodparam">float $x
)
public bool
pathLineToHorizontalRelative ( <span
class="methodparam">float $x
)
public bool
pathLineToRelative ( <span
class="methodparam">float $x
, <span
class="methodparam">float $y
)
public bool
pathLineToVerticalAbsolute ( <span
class="methodparam">float $y
)
public bool
pathLineToVerticalRelative ( <span
class="methodparam">float $y
)
public bool
pathMoveToAbsolute ( <span
class="methodparam">float $x
, <span
class="methodparam">float $y
)
public bool
pathMoveToRelative ( <span
class="methodparam">float $x
, <span
class="methodparam">float $y
)
public bool pathStart ( <span class="methodparam">void )
public bool
point ( <span
class="type">float $x
, <span
class="type">float $y
)
public bool
polygon ( <span
class="methodparam">array
$coordinates
)
public bool
polyline ( <span
class="methodparam">array
$coordinates
)
public bool pop ( <span class="methodparam">void )
public bool popClipPath ( <span class="methodparam">void )
public bool popDefs ( <span class="methodparam">void )
public bool popPattern ( <span class="methodparam">void )
public bool push ( <span class="methodparam">void )
public bool
pushClipPath ( <span
class="methodparam">string
$clip_mask_id
)
public bool pushDefs ( <span class="methodparam">void )
public bool
pushPattern ( <span
class="methodparam">string
$pattern_id
, <span
class="type">float $x
, <span
class="type">float $y
, <span
class="type">float $width
, <span
class="methodparam">float $height
)
public bool
rectangle ( <span
class="methodparam">float $x1
, <span
class="methodparam">float $y1
, <span
class="methodparam">float $x2
, <span
class="methodparam">float $y2
)
public bool render ( <span class="methodparam">void )
public bool resetVectorGraphics ( <span class="methodparam">void )
public bool
rotate ( <span
class="type">float $degrees
)
public bool
roundRectangle ( <span
class="methodparam">float $x1
, <span
class="methodparam">float $y1
, <span
class="methodparam">float $x2
, <span
class="methodparam">float $y2
, <span
class="methodparam">float $rx
, <span
class="methodparam">float $ry
)
public bool
scale ( <span
class="type">float $x
, <span
class="type">float $y
)
public bool
setClipPath ( <span
class="methodparam">string $clip_mask
)
public bool
setClipRule ( <span
class="methodparam">int $fill_rule
)
public bool
setClipUnits ( <span
class="methodparam">int $clip_units
)
public bool
setFillAlpha ( <span
class="methodparam">float $opacity
)
public bool
setFillColor ( <span
class="methodparam">ImagickPixel
$fill_pixel
)
public bool
setFillOpacity ( <span
class="methodparam">float
$fillOpacity
)
public bool
setFillPatternURL ( <span
class="methodparam">string $fill_url
)
public bool
setFillRule ( <span
class="methodparam">int $fill_rule
)
public bool
setFont ( <span
class="methodparam">string $font_name
)
public bool
setFontFamily ( <span
class="methodparam">string
$font_family
)
public bool
setFontSize ( <span
class="methodparam">float $pointsize
)
public bool
setFontStretch ( <span
class="methodparam">int $fontStretch
)
public bool
setFontStyle ( <span
class="methodparam">int $style
)
public bool
setFontWeight ( <span
class="methodparam">int $font_weight
)
public bool
setGravity ( <span
class="methodparam">int $gravity
)
public bool
setResolution ( <span
class="methodparam">float
$x_resolution
, <span
class="type">float $y_resolution
)
public bool
setStrokeAlpha ( <span
class="methodparam">float $opacity
)
public bool
setStrokeAntialias ( <span
class="methodparam">bool
$stroke_antialias
)
public bool
setStrokeColor ( <span
class="methodparam">ImagickPixel
$stroke_pixel
)
public bool
setStrokeDashArray ( <span
class="methodparam">array $dashArray
)
public bool
setStrokeDashOffset ( <span
class="methodparam">float
$dash_offset
)
public bool
setStrokeLineCap ( <span
class="methodparam">int $linecap
)
public bool
setStrokeLineJoin ( <span
class="methodparam">int $linejoin
)
public bool
setStrokeMiterLimit ( <span
class="methodparam">int $miterlimit
)
public bool
setStrokeOpacity ( <span
class="methodparam">float
$stroke_opacity
)
public bool
setStrokePatternURL ( <span
class="methodparam">string
$stroke_url
)
public bool
setStrokeWidth ( <span
class="methodparam">float
$stroke_width
)
public bool
setTextAlignment ( <span
class="methodparam">int $alignment
)
public bool
setTextAntialias ( <span
class="methodparam">bool $antiAlias
)
public bool
setTextDecoration ( <span
class="methodparam">int $decoration
)
public bool
setTextEncoding ( <span
class="methodparam">string $encoding
)
public bool
setTextInterlineSpacing ( <span
class="methodparam">float $spacing
)
public bool
setTextInterwordSpacing ( <span
class="methodparam">float $spacing
)
public bool
setTextKerning ( <span
class="methodparam">float $kerning
)
public bool
setTextUnderColor ( <span
class="methodparam">ImagickPixel
$under_color
)
public bool
setVectorGraphics ( <span
class="methodparam">string $xml
)
public bool
setViewbox ( <span
class="methodparam">int $x1
, <span
class="methodparam">int $y1
, <span
class="methodparam">int $x2
, <span
class="methodparam">int $y2
)
public bool
skewX ( <span
class="type">float $degrees
)
public bool
skewY ( <span
class="type">float $degrees
)
public bool
translate ( <span
class="methodparam">float $x
, <span
class="methodparam">float $y
)
}
ImagickDraw::affine
Adjusts the current affine transformation matrix
说明
public bool
ImagickDraw::affine ( <span
class="methodparam">array $affine
)
Warning
本函数还未编写文档,仅有参数列表。
Adjusts the current affine transformation matrix with the specified affine transformation matrix.
参数
affine
Affine matrix parameters
返回值
没有返回值。
范例
示例 #1 ImagickDraw::affine
<?php
function affine($strokeColor, $fillColor, $backgroundColor) {
$draw = new \ImagickDraw();
$draw->setStrokeWidth(1);
$draw->setStrokeOpacity(1);
$draw->setStrokeColor($strokeColor);
$draw->setFillColor($fillColor);
$draw->setStrokeWidth(2);
$PI = 3.141592653589794;
$angle = 60 * $PI / 360;
//Scale the drawing co-ordinates.
$affineScale = array("sx" => 1.75, "sy" => 1.75, "rx" => 0, "ry" => 0, "tx" => 0, "ty" => 0);
//Shear the drawing co-ordinates.
$affineShear = array("sx" => 1, "sy" => 1, "rx" => sin($angle), "ry" => -sin($angle), "tx" => 0, "ty" => 0);
//Rotate the drawing co-ordinates. The shear affine matrix
//produces incorrectly scaled drawings.
$affineRotate = array("sx" => cos($angle), "sy" => cos($angle), "rx" => sin($angle), "ry" => -sin($angle), "tx" => 0, "ty" => 0,);
//Translate (offset) the drawing
$affineTranslate = array("sx" => 1, "sy" => 1, "rx" => 0, "ry" => 0, "tx" => 30, "ty" => 30);
//The identiy affine matrix
$affineIdentity = array("sx" => 1, "sy" => 1, "rx" => 0, "ry" => 0, "tx" => 0, "ty" => 0);
$examples = [$affineScale, $affineShear, $affineRotate, $affineTranslate, $affineIdentity,];
$count = 0;
foreach ($examples as $example) {
$draw->push();
$draw->translate(($count % 2) * 250, intval($count / 2) * 250);
$draw->translate(100, 100);
$draw->affine($example);
$draw->rectangle(-50, -50, 50, 50);
$draw->pop();
$count++;
}
//Create an image object which the draw commands can be rendered into
$image = new \Imagick();
$image->newImage(500, 750, $backgroundColor);
$image->setImageFormat("png");
//Render the draw commands in the ImagickDraw object
//into the image.
$image->drawImage($draw);
//Send the image to the browser
header("Content-Type: image/png");
echo $image->getImageBlob();
}
?>
ImagickDraw::annotation
Draws text on the image
说明
public bool
ImagickDraw::annotation ( <span
class="methodparam">float $x
, <span
class="methodparam">float $y
, <span
class="methodparam">string $text
)
Warning
本函数还未编写文档,仅有参数列表。
Draws text on the image.
参数
x
The x coordinate where text is drawn
y
The y coordinate where text is drawn
text
The text to draw on the image
返回值
没有返回值。
ImagickDraw::arc
Draws an arc
说明
public bool
ImagickDraw::arc ( <span
class="methodparam">float $sx
, <span
class="methodparam">float $sy
, <span
class="methodparam">float $ex
, <span
class="methodparam">float $ey
, <span
class="methodparam">float $sd
, <span
class="methodparam">float $ed
)
Warning
本函数还未编写文档,仅有参数列表。
Draws an arc falling within a specified bounding rectangle on the image.
参数
sx
Starting x ordinate of bounding rectangle
sy
starting y ordinate of bounding rectangle
ex
ending x ordinate of bounding rectangle
ey
ending y ordinate of bounding rectangle
sd
starting degrees of rotation
ed
ending degrees of rotation
返回值
没有返回值。
范例
示例 #1 ImagickDraw::arc
<?php
function arc($strokeColor, $fillColor, $backgroundColor, $startX, $startY, $endX, $endY, $startAngle, $endAngle) {
//Create a ImagickDraw object to draw into.
$draw = new \ImagickDraw();
$draw->setStrokeWidth(1);
$draw->setStrokeColor($strokeColor);
$draw->setFillColor($fillColor);
$draw->setStrokeWidth(2);
$draw->arc($startX, $startY, $endX, $endY, $startAngle, $endAngle);
//Create an image object which the draw commands can be rendered into
$image = new \Imagick();
$image->newImage(IMAGE_WIDTH, IMAGE_HEIGHT, $backgroundColor);
$image->setImageFormat("png");
//Render the draw commands in the ImagickDraw object
//into the image.
$image->drawImage($draw);
//Send the image to the browser
header("Content-Type: image/png");
echo $image->getImageBlob();
}
?>
ImagickDraw::bezier
Draws a bezier curve
说明
public bool
ImagickDraw::bezier ( <span
class="methodparam">array
$coordinates
)
Warning
本函数还未编写文档,仅有参数列表。
Draws a bezier curve through a set of points on the image.
参数
coordinates
Multidimensional array like array( array( 'x' => 1, 'y' => 2 ), array(
'x' => 3, 'y' => 4 ) )
返回值
没有返回值。
范例
示例 #1 ImagickDraw::bezier
<?php
function bezier($strokeColor, $fillColor, $backgroundColor) {
$draw = new \ImagickDraw();
$strokeColor = new \ImagickPixel($strokeColor);
$fillColor = new \ImagickPixel($fillColor);
$draw->setStrokeOpacity(1);
$draw->setStrokeColor($strokeColor);
$draw->setFillColor($fillColor);
$draw->setStrokeWidth(2);
$smoothPointsSet = [
[
['x' => 10.0 * 5, 'y' => 10.0 * 5],
['x' => 30.0 * 5, 'y' => 90.0 * 5],
['x' => 25.0 * 5, 'y' => 10.0 * 5],
['x' => 50.0 * 5, 'y' => 50.0 * 5],
],
[
['x' => 50.0 * 5, 'y' => 50.0 * 5],
['x' => 75.0 * 5, 'y' => 90.0 * 5],
['x' => 70.0 * 5, 'y' => 10.0 * 5],
['x' => 90.0 * 5, 'y' => 40.0 * 5],
],
];
foreach ($smoothPointsSet as $points) {
$draw->bezier($points);
}
$disjointPoints = [
[
['x' => 10 * 5, 'y' => 10 * 5],
['x' => 30 * 5, 'y' => 90 * 5],
['x' => 25 * 5, 'y' => 10 * 5],
['x' => 50 * 5, 'y' => 50 * 5],
],
[
['x' => 50 * 5, 'y' => 50 * 5],
['x' => 80 * 5, 'y' => 50 * 5],
['x' => 70 * 5, 'y' => 10 * 5],
['x' => 90 * 5, 'y' => 40 * 5],
]
];
$draw->translate(0, 200);
foreach ($disjointPoints as $points) {
$draw->bezier($points);
}
//Create an image object which the draw commands can be rendered into
$imagick = new \Imagick();
$imagick->newImage(500, 500, $backgroundColor);
$imagick->setImageFormat("png");
//Render the draw commands in the ImagickDraw object
//into the image.
$imagick->drawImage($draw);
//Send the image to the browser
header("Content-Type: image/png");
echo $imagick->getImageBlob();
}
?>
ImagickDraw::circle
Draws a circle
说明
public bool
ImagickDraw::circle ( <span
class="methodparam">float $ox
, <span
class="methodparam">float $oy
, <span
class="methodparam">float $px
, <span
class="methodparam">float $py
)
Warning
本函数还未编写文档,仅有参数列表。
Draws a circle on the image.
参数
ox
origin x coordinate
oy
origin y coordinate
px
perimeter x coordinate
py
perimeter y coordinate
返回值
没有返回值。
范例
示例 #1 ImagickDraw::circle
<?php
function circle($strokeColor, $fillColor, $backgroundColor, $originX, $originY, $endX, $endY) {
//Create a ImagickDraw object to draw into.
$draw = new \ImagickDraw();
$strokeColor = new \ImagickPixel($strokeColor);
$fillColor = new \ImagickPixel($fillColor);
$draw->setStrokeOpacity(1);
$draw->setStrokeColor($strokeColor);
$draw->setFillColor($fillColor);
$draw->setStrokeWidth(2);
$draw->setFontSize(72);
$draw->circle($originX, $originY, $endX, $endY);
$imagick = new \Imagick();
$imagick->newImage(500, 500, $backgroundColor);
$imagick->setImageFormat("png");
$imagick->drawImage($draw);
header("Content-Type: image/png");
echo $imagick->getImageBlob();
}
?>
ImagickDraw::clear
Clears the ImagickDraw
说明
public bool ImagickDraw::clear ( <span class="methodparam">void )
Warning
本函数还未编写文档,仅有参数列表。
Clears the ImagickDraw object of any accumulated commands, and resets the settings it contains to their defaults.
返回值
Returns an ImagickDraw object.
ImagickDraw::clone
Makes an exact copy of the specified ImagickDraw object
说明
public <span class="type">ImagickDraw <span class="methodname">ImagickDraw::clone ( <span class="methodparam">void )
Warning
本函数还未编写文档,仅有参数列表。
Makes an exact copy of the specified ImagickDraw object.
返回值
What the function returns, first on success, then on failure. See also the &return.success; entity
ImagickDraw::color
Draws color on image
说明
public bool
ImagickDraw::color ( <span
class="methodparam">float $x
, <span
class="methodparam">float $y
, <span
class="methodparam">int $paintMethod
)
Warning
本函数还未编写文档,仅有参数列表。
Draws color on image using the current fill color, starting at specified position, and using specified paint method.
参数
x
x coordinate of the paint
y
y coordinate of the paint
paintMethod
one of the PAINT_ constants
返回值
没有返回值。
ImagickDraw::comment
Adds a comment
说明
public bool
ImagickDraw::comment ( <span
class="methodparam">string $comment
)
Warning
本函数还未编写文档,仅有参数列表。
Adds a comment to a vector output stream.
参数
comment
The comment string to add to vector output stream
返回值
没有返回值。
ImagickDraw::composite
Composites an image onto the current image
说明
public bool
ImagickDraw::composite ( <span
class="methodparam">int $compose
,
float $x
,
float $y
,
float
$width
, <span
class="type">float $height
, <span
class="methodparam">Imagick
$compositeWand
)
Warning
本函数还未编写文档,仅有参数列表。
Composites an image onto the current image, using the specified composition operator, specified position, and at the specified size.
参数
compose
composition operator. One of COMPOSITE_ constants
x
x coordinate of the top left corner
y
y coordinate of the top left corner
width
width of the composition image
height
height of the composition image
compositeWand
the Imagick object where composition image is taken from
返回值
成功时返回 true
。
范例
示例 #1 ImagickDraw::composite
<?php
function composite($strokeColor, $fillColor, $backgroundColor) {
$draw = new \ImagickDraw();
$draw->setStrokeColor($strokeColor);
$draw->setFillColor($fillColor);
$draw->setFillOpacity(1);
$draw->setStrokeWidth(2);
$draw->setFontSize(72);
$draw->setStrokeOpacity(1);
$draw->setStrokeColor($strokeColor);
$draw->setStrokeWidth(2);
$draw->setFont("../fonts/CANDY.TTF");
$draw->setFontSize(140);
$draw->rectangle(0, 0, 1000, 300);
$draw->setFillColor('white');
$draw->setfillopacity(1);
$draw->annotation(50, 180, "Lorem Ipsum!");
//Create an image object which the draw commands can be rendered into
$imagick = new \Imagick();
$imagick->newImage(1000, 302, $backgroundColor);
$imagick->setImageFormat("png");
//Render the draw commands in the ImagickDraw object
//into the image.
$imagick->drawImage($draw);
//Send the image to the browser
header("Content-Type: image/png");
echo $imagick->getImageBlob();
}
?>
ImagickDraw::__construct
The ImagickDraw constructor
说明
public <span class="methodname">ImagickDraw::__construct ( <span class="methodparam">void )
Warning
本函数还未编写文档,仅有参数列表。
The ImagickDraw constructor
返回值
没有返回值。
ImagickDraw::destroy
Frees all associated resources
说明
public bool ImagickDraw::destroy ( <span class="methodparam">void )
Warning
本函数还未编写文档,仅有参数列表。
Frees all resources associated with the ImagickDraw object.
返回值
没有返回值。
ImagickDraw::ellipse
Draws an ellipse on the image
说明
public bool
ImagickDraw::ellipse ( <span
class="methodparam">float $ox
, <span
class="methodparam">float $oy
, <span
class="methodparam">float $rx
, <span
class="methodparam">float $ry
, <span
class="methodparam">float $start
,
float $end
)
Warning
本函数还未编写文档,仅有参数列表。
Draws an ellipse on the image.
参数
ox
oy
rx
ry
start
end
返回值
没有返回值。
范例
示例 #1 ImagickDraw::ellipse
<?php
function ellipse($strokeColor, $fillColor, $backgroundColor) {
$draw = new \ImagickDraw();
$draw->setStrokeColor($strokeColor);
$draw->setFillColor($fillColor);
$draw->setStrokeWidth(2);
$draw->setFontSize(72);
$draw->ellipse(125, 70, 100, 50, 0, 360);
$draw->ellipse(350, 70, 100, 50, 0, 315);
$draw->push();
$draw->translate(125, 250);
$draw->rotate(30);
$draw->ellipse(0, 0, 100, 50, 0, 360);
$draw->pop();
$draw->push();
$draw->translate(350, 250);
$draw->rotate(30);
$draw->ellipse(0, 0, 100, 50, 0, 315);
$draw->pop();
$imagick = new \Imagick();
$imagick->newImage(500, 500, $backgroundColor);
$imagick->setImageFormat("png");
$imagick->drawImage($draw);
header("Content-Type: image/png");
echo $imagick->getImageBlob();
}
?>
ImagickDraw::getClipPath
Obtains the current clipping path ID
说明
public string ImagickDraw::getClipPath ( <span class="methodparam">void )
Warning
本函数还未编写文档,仅有参数列表。
Obtains the current clipping path ID.
返回值
Returns a string containing the clip path ID or false if no clip path exists.
ImagickDraw::getClipRule
Returns the current polygon fill rule
说明
public int <span class="methodname">ImagickDraw::getClipRule ( <span class="methodparam">void )
Warning
本函数还未编写文档,仅有参数列表。
Returns the current polygon fill rule to be used by the clipping path.
返回值
Returns one of the FILLRULE_ constants.
ImagickDraw::getClipUnits
Returns the interpretation of clip path units
说明
public int <span class="methodname">ImagickDraw::getClipUnits ( <span class="methodparam">void )
Warning
本函数还未编写文档,仅有参数列表。
Returns the interpretation of clip path units.
返回值
Returns an int on success.
ImagickDraw::getFillColor
Returns the fill color
说明
public <span class="type">ImagickPixel <span class="methodname">ImagickDraw::getFillColor ( <span class="methodparam">void )
Warning
本函数还未编写文档,仅有参数列表。
Returns the fill color used for drawing filled objects.
返回值
Returns an ImagickPixel object.
ImagickDraw::getFillOpacity
Returns the opacity used when drawing
说明
public float ImagickDraw::getFillOpacity ( <span class="methodparam">void )
Warning
本函数还未编写文档,仅有参数列表。
Returns the opacity used when drawing using the fill color or fill texture. Fully opaque is 1.0.
返回值
The opacity.
ImagickDraw::getFillRule
Returns the fill rule
说明
public int <span class="methodname">ImagickDraw::getFillRule ( <span class="methodparam">void )
Warning
本函数还未编写文档,仅有参数列表。
Returns the fill rule used while drawing polygons.
返回值
Returns a FILLRULE_ constant
ImagickDraw::getFont
Returns the font
说明
public string ImagickDraw::getFont ( <span class="methodparam">void )
Warning
本函数还未编写文档,仅有参数列表。
Returns a string specifying the font used when annotating with text.
返回值
Returns a string on success and false if no font is set.
ImagickDraw::getFontFamily
Returns the font family
说明
public string ImagickDraw::getFontFamily ( <span class="methodparam">void )
Warning
本函数还未编写文档,仅有参数列表。
Returns the font family to use when annotating with text.
返回值
Returns the font family currently selected or false if font family is not set.
ImagickDraw::getFontSize
Returns the font pointsize
说明
public float ImagickDraw::getFontSize ( <span class="methodparam">void )
Warning
本函数还未编写文档,仅有参数列表。
Returns the font pointsize used when annotating with text.
返回值
Returns the font size associated with the current ImagickDraw object.
ImagickDraw::getFontStretch
Description
说明
public int <span class="methodname">ImagickDraw::getFontStretch ( <span class="methodparam">void )
Gets the font stretch to use when annotating with text. Returns a StretchType.
参数
此函数没有参数。
返回值
ImagickDraw::getFontStyle
Returns the font style
说明
public int <span class="methodname">ImagickDraw::getFontStyle ( <span class="methodparam">void )
Warning
本函数还未编写文档,仅有参数列表。
Returns the font style used when annotating with text.
返回值
Returns the font style constant (STYLE_) associated with the ImagickDraw object or 0 if no style is set.
ImagickDraw::getFontWeight
Returns the font weight
说明
public int <span class="methodname">ImagickDraw::getFontWeight ( <span class="methodparam">void )
Warning
本函数还未编写文档,仅有参数列表。
Returns the font weight used when annotating with text.
返回值
Returns an int on success and 0 if no weight is set.
ImagickDraw::getGravity
Returns the text placement gravity
说明
public int <span class="methodname">ImagickDraw::getGravity ( <span class="methodparam">void )
Warning
本函数还未编写文档,仅有参数列表。
Returns the text placement gravity used when annotating with text.
返回值
Returns a GRAVITY_ constant on success and 0 if no gravity is set.
ImagickDraw::getStrokeAntialias
Returns the current stroke antialias setting
说明
public bool ImagickDraw::getStrokeAntialias ( <span class="methodparam">void )
Warning
本函数还未编写文档,仅有参数列表。
Returns the current stroke antialias setting. Stroked outlines are antialiased by default. When antialiasing is disabled stroked pixels are thresholded to determine if the stroke color or underlying canvas color should be used.
返回值
Returns true
if antialiasing is on and false if it is off.
ImagickDraw::getStrokeColor
Returns the color used for stroking object outlines
说明
public <span class="type">ImagickPixel <span class="methodname">ImagickDraw::getStrokeColor ( <span class="methodparam">void )
Warning
本函数还未编写文档,仅有参数列表。
Returns the color used for stroking object outlines.
参数
stroke_color
返回值
Returns an ImagickPixel object which describes the color.
ImagickDraw::getStrokeDashArray
Returns an array representing the pattern of dashes and gaps used to stroke paths
说明
public array ImagickDraw::getStrokeDashArray ( <span class="methodparam">void )
Warning
本函数还未编写文档,仅有参数列表。
Returns an array representing the pattern of dashes and gaps used to stroke paths.
返回值
Returns an array on success and empty array if not set.
ImagickDraw::getStrokeDashOffset
Returns the offset into the dash pattern to start the dash
说明
public float ImagickDraw::getStrokeDashOffset ( <span class="methodparam">void )
Warning
本函数还未编写文档,仅有参数列表。
Returns the offset into the dash pattern to start the dash.
返回值
Returns a float representing the offset and 0 if it's not set.
ImagickDraw::getStrokeLineCap
Returns the shape to be used at the end of open subpaths when they are stroked
说明
public int <span class="methodname">ImagickDraw::getStrokeLineCap ( <span class="methodparam">void )
Warning
本函数还未编写文档,仅有参数列表。
Returns the shape to be used at the end of open subpaths when they are stroked.
返回值
Returns one of the LINECAP_ constants or 0 if stroke linecap is not set.
ImagickDraw::getStrokeLineJoin
Returns the shape to be used at the corners of paths when they are stroked
说明
public int <span class="methodname">ImagickDraw::getStrokeLineJoin ( <span class="methodparam">void )
Warning
本函数还未编写文档,仅有参数列表。
Returns the shape to be used at the corners of paths (or other vector shapes) when they are stroked.
返回值
Returns one of the LINEJOIN_ constants or 0 if stroke line join is not set.
ImagickDraw::getStrokeMiterLimit
Returns the stroke miter limit
说明
public int <span class="methodname">ImagickDraw::getStrokeMiterLimit ( <span class="methodparam">void )
Warning
本函数还未编写文档,仅有参数列表。
Returns the miter limit. When two line segments meet at a sharp angle and miter joins have been specified for 'lineJoin', it is possible for the miter to extend far beyond the thickness of the line stroking the path. The 'miterLimit' imposes a limit on the ratio of the miter length to the 'lineWidth'.
返回值
Returns an int describing the miter limit and 0 if no miter limit is set.
ImagickDraw::getStrokeOpacity
Returns the opacity of stroked object outlines
说明
public float ImagickDraw::getStrokeOpacity ( <span class="methodparam">void )
Warning
本函数还未编写文档,仅有参数列表。
Returns the opacity of stroked object outlines.
返回值
Returns a double describing the opacity.
ImagickDraw::getStrokeWidth
Returns the width of the stroke used to draw object outlines
说明
public float ImagickDraw::getStrokeWidth ( <span class="methodparam">void )
Warning
本函数还未编写文档,仅有参数列表。
Returns the width of the stroke used to draw object outlines.
返回值
Returns a double describing the stroke width.
ImagickDraw::getTextAlignment
Returns the text alignment
说明
public int <span class="methodname">ImagickDraw::getTextAlignment ( <span class="methodparam">void )
Warning
本函数还未编写文档,仅有参数列表。
Returns the alignment applied when annotating with text.
返回值
Returns one of the ALIGN_ constants and 0 if no align is set.
ImagickDraw::getTextAntialias
Returns the current text antialias setting
说明
public bool ImagickDraw::getTextAntialias ( <span class="methodparam">void )
Warning
本函数还未编写文档,仅有参数列表。
Returns the current text antialias setting, which determines whether text is antialiased. Text is antialiased by default.
返回值
Returns true
if text is antialiased and false if not.
ImagickDraw::getTextDecoration
Returns the text decoration
说明
public int <span class="methodname">ImagickDraw::getTextDecoration ( <span class="methodparam">void )
Warning
本函数还未编写文档,仅有参数列表。
Returns the decoration applied when annotating with text.
返回值
Returns one of the DECORATION_ constants and 0 if no decoration is set.
ImagickDraw::getTextEncoding
Returns the code set used for text annotations
说明
public string ImagickDraw::getTextEncoding ( <span class="methodparam">void )
Warning
本函数还未编写文档,仅有参数列表。
Returns a string which specifies the code set used for text annotations.
返回值
Returns a string specifying the code set or false if text encoding is not set.
ImagickDraw::getTextInterlineSpacing
Description
说明
public float ImagickDraw::getTextInterlineSpacing ( void )
Gets the text interword spacing.
参数
此函数没有参数。
返回值
ImagickDraw::getTextInterwordSpacing
Description
说明
public float ImagickDraw::getTextInterwordSpacing ( void )
Gets the text interword spacing.
参数
此函数没有参数。
返回值
ImagickDraw::getTextKerning
Description
说明
public float ImagickDraw::getTextKerning ( <span class="methodparam">void )
Gets the text kerning.
参数
此函数没有参数。
返回值
ImagickDraw::getTextUnderColor
Returns the text under color
说明
public <span class="type">ImagickPixel <span class="methodname">ImagickDraw::getTextUnderColor ( <span class="methodparam">void )
Warning
本函数还未编写文档,仅有参数列表。
Returns the color of a background rectangle to place under text annotations.
返回值
Returns an ImagickPixel object describing the color.
ImagickDraw::getVectorGraphics
Returns a string containing vector graphics
说明
public string ImagickDraw::getVectorGraphics ( <span class="methodparam">void )
Warning
本函数还未编写文档,仅有参数列表。
Returns a string which specifies the vector graphics generated by any graphics calls made since the ImagickDraw object was instantiated.
返回值
Returns a string containing the vector graphics.
ImagickDraw::line
Draws a line
说明
public bool
ImagickDraw::line ( <span
class="methodparam">float $sx
, <span
class="methodparam">float $sy
, <span
class="methodparam">float $ex
, <span
class="methodparam">float $ey
)
Warning
本函数还未编写文档,仅有参数列表。
Draws a line on the image using the current stroke color, stroke opacity, and stroke width.
参数
sx
starting x coordinate
sy
starting y coordinate
ex
ending x coordinate
ey
ending y coordinate
返回值
没有返回值。
范例
示例 #1 ImagickDraw::line
<?php
function line($strokeColor, $fillColor, $backgroundColor) {
$draw = new \ImagickDraw();
$draw->setStrokeColor($strokeColor);
$draw->setFillColor($fillColor);
$draw->setStrokeWidth(2);
$draw->setFontSize(72);
$draw->line(125, 70, 100, 50);
$draw->line(350, 170, 100, 150);
$imagick = new \Imagick();
$imagick->newImage(500, 500, $backgroundColor);
$imagick->setImageFormat("png");
$imagick->drawImage($draw);
header("Content-Type: image/png");
echo $imagick->getImageBlob();
}
?>
ImagickDraw::matte
Paints on the image's opacity channel
说明
public bool
ImagickDraw::matte ( <span
class="methodparam">float $x
, <span
class="methodparam">float $y
, <span
class="methodparam">int $paintMethod
)
Warning
本函数还未编写文档,仅有参数列表。
Paints on the image's opacity channel in order to set effected pixels to transparent, to influence the opacity of pixels.
参数
x
x coordinate of the matte
y
y coordinate of the matte
paintMethod
PAINT_ constant
返回值
成功时返回 true
, 或者在失败时返回 false
。
范例
示例 #1 ImagickDraw::matte
<?php
function matte($strokeColor, $fillColor, $backgroundColor, $paintType) {
$draw = new \ImagickDraw();
$draw->setStrokeColor($strokeColor);
$draw->setFillColor($fillColor);
$draw->setStrokeWidth(2);
$draw->setFontSize(72);
$draw->matte(120, 120, $paintType);
$draw->rectangle(100, 100, 300, 200);
$imagick = new \Imagick();
$imagick->newImage(500, 500, $backgroundColor);
$imagick->setImageFormat("png");
$imagick->drawImage($draw);
header("Content-Type: image/png");
echo $imagick->getImageBlob();
}
?>
ImagickDraw::pathClose
Adds a path element to the current path
说明
public bool ImagickDraw::pathClose ( <span class="methodparam">void )
Warning
本函数还未编写文档,仅有参数列表。
Adds a path element to the current path which closes the current subpath by drawing a straight line from the current point to the current subpath's most recent starting point (usually, the most recent moveto point).
返回值
没有返回值。
ImagickDraw::pathCurveToAbsolute
Draws a cubic Bezier curve
说明
public bool
ImagickDraw::pathCurveToAbsolute ( <span
class="methodparam">float $x1
, <span
class="methodparam">float $y1
, <span
class="methodparam">float $x2
, <span
class="methodparam">float $y2
, <span
class="methodparam">float $x
, <span
class="methodparam">float $y
)
Warning
本函数还未编写文档,仅有参数列表。
Draws a cubic Bezier curve from the current point to (x,y) using (x1,y1) as the control point at the beginning of the curve and (x2,y2) as the control point at the end of the curve using absolute coordinates. At the end of the command, the new current point becomes the final (x,y) coordinate pair used in the polybezier.
参数
x1
x coordinate of the first control point
y1
y coordinate of the first control point
x2
x coordinate of the second control point
y2
y coordinate of the first control point
x
x coordinate of the curve end
y
y coordinate of the curve end
返回值
没有返回值。
ImagickDraw::pathCurveToQuadraticBezierAbsolute
Draws a quadratic Bezier curve
说明
public bool
<span
class="methodname">ImagickDraw::pathCurveToQuadraticBezierAbsolute
( float $x1
, float $y1
, float $x
, float $y
)
Warning
本函数还未编写文档,仅有参数列表。
Draws a quadratic Bezier curve from the current point to (x,y) using (x1,y1) as the control point using absolute coordinates. At the end of the command, the new current point becomes the final (x,y) coordinate pair used in the polybezier.
参数
x1
x coordinate of the control point
y1
y coordinate of the control point
x
x coordinate of the end point
y
y coordinate of the end point
返回值
没有返回值。
范例
示例 #1 <span class="function">ImagickDraw::pathCurveToQuadraticBezierAbsolute
<?php
function pathCurveToQuadraticBezierAbsolute($strokeColor, $fillColor, $backgroundColor) {
$draw = new \ImagickDraw();
$draw->setStrokeOpacity(1);
$draw->setStrokeColor($strokeColor);
$draw->setFillColor($fillColor);
$draw->setStrokeWidth(2);
$draw->setFontSize(72);
$draw->pathStart();
$draw->pathMoveToAbsolute(50,250);
// This specifies a quadratic bezier curve with the current position as the start
// point, the control point is the first two params, and the end point is the last two params.
$draw->pathCurveToQuadraticBezierAbsolute(
150,50,
250,250
);
// This specifies a quadratic bezier curve with the current position as the start
// point, the control point is mirrored from the previous curves control point
// and the end point is defined by the x, y values.
$draw->pathCurveToQuadraticBezierSmoothAbsolute(
450,250
);
// This specifies a quadratic bezier curve with the current position as the start
// point, the control point is mirrored from the previous curves control point
// and the end point is defined relative from the current position by the x, y values.
$draw->pathCurveToQuadraticBezierSmoothRelative(
200,-100
);
$draw->pathFinish();
$imagick = new \Imagick();
$imagick->newImage(700, 500, $backgroundColor);
$imagick->setImageFormat("png");
$imagick->drawImage($draw);
header("Content-Type: image/png");
echo $imagick->getImageBlob();
}
?>
ImagickDraw::pathCurveToQuadraticBezierRelative
Draws a quadratic Bezier curve
说明
public bool
<span
class="methodname">ImagickDraw::pathCurveToQuadraticBezierRelative
( float $x1
, float $y1
, float $x
, float $y
)
Warning
本函数还未编写文档,仅有参数列表。
Draws a quadratic Bezier curve from the current point to (x,y) using (x1,y1) as the control point using relative coordinates. At the end of the command, the new current point becomes the final (x,y) coordinate pair used in the polybezier.
参数
x1
starting x coordinate
y1
starting y coordinate
x
ending x coordinate
y
ending y coordinate
返回值
没有返回值。
ImagickDraw::pathCurveToQuadraticBezierSmoothAbsolute
Draws a quadratic Bezier curve
说明
public bool
<span
class="methodname">ImagickDraw::pathCurveToQuadraticBezierSmoothAbsolute
( float $x
, float $y
)
Draws a quadratic Bezier curve (using absolute coordinates) from the current point to (x,y). The control point is assumed to be the reflection of the control point on the previous command relative to the current point. (If there is no previous command or if the previous command was not a DrawPathCurveToQuadraticBezierAbsolute, DrawPathCurveToQuadraticBezierRelative, DrawPathCurveToQuadraticBezierSmoothAbsolut or DrawPathCurveToQuadraticBezierSmoothRelative, assume the control point is coincident with the current point.). At the end of the command, the new current point becomes the final (x,y) coordinate pair used in the polybezier.
This function cannot be used to continue a cubic Bezier curve smoothly. It can only continue from a quadratic curve smoothly.
参数
x
ending x coordinate
y
ending y coordinate
返回值
没有返回值。
范例
示例 #1 <span class="methodname">ImagickDraw::pathCurveToQuadraticBezierSmoothAbsolute
<?php
$draw = new \ImagickDraw();
$draw->setStrokeOpacity(1);
$draw->setStrokeColor("black");
$draw->setFillColor("blue");
$draw->setStrokeWidth(2);
$draw->setFontSize(72);
$draw->pathStart();
$draw->pathMoveToAbsolute(50,250);
// This specifies a quadratic bezier curve with the current position as the start
// point, the control point is the first two params, and the end point is the last two params.
$draw->pathCurveToQuadraticBezierAbsolute(
150,50,
250,250
);
// This specifies a quadratic bezier curve with the current position as the start
// point, the control point is mirrored from the previous curves control point
// and the end point is defined by the x, y values.
$draw->pathCurveToQuadraticBezierSmoothAbsolute(
450,250
);
// This specifies a quadratic bezier curve with the current position as the start
// point, the control point is mirrored from the previous curves control point
// and the end point is defined relative from the current position by the x, y values.
$draw->pathCurveToQuadraticBezierSmoothRelative(
200,-100
);
$draw->pathFinish();
$imagick = new \Imagick();
$imagick->newImage(700, 500, $backgroundColor);
$imagick->setImageFormat("png");
$imagick->drawImage($draw);
header("Content-Type: image/png");
echo $imagick->getImageBlob();
?>
ImagickDraw::pathCurveToQuadraticBezierSmoothRelative
Draws a quadratic Bezier curve
说明
public bool
<span
class="methodname">ImagickDraw::pathCurveToQuadraticBezierSmoothRelative
( float $x
, float $y
)
Warning
本函数还未编写文档,仅有参数列表。
Draws a quadratic Bezier curve (using relative coordinates) from the current point to (x, y). The control point is assumed to be the reflection of the control point on the previous command relative to the current point. (If there is no previous command or if the previous command was not a DrawPathCurveToQuadraticBezierAbsolute, DrawPathCurveToQuadraticBezierRelative, DrawPathCurveToQuadraticBezierSmoothAbsolut or DrawPathCurveToQuadraticBezierSmoothRelative, assume the control point is coincident with the current point). At the end of the command, the new current point becomes the final (x, y) coordinate pair used in the polybezier.
This function cannot be used to continue a cubic Bezier curve smoothly. It can only continue from a quadratic curve smoothly.
参数
x
ending x coordinate
y
ending y coordinate
返回值
没有返回值。
范例
示例 #1 <span class="methodname">ImagickDraw::pathCurveToQuadraticBezierSmoothRelative
<?php
$draw = new \ImagickDraw();
$draw->setStrokeOpacity(1);
$draw->setStrokeColor("black");
$draw->setFillColor("blue");
$draw->setStrokeWidth(2);
$draw->setFontSize(72);
$draw->pathStart();
$draw->pathMoveToAbsolute(50,250);
// This specifies a quadratic bezier curve with the current position as the start
// point, the control point is the first two params, and the end point is the last two params.
$draw->pathCurveToQuadraticBezierAbsolute(
150,50,
250,250
);
// This specifies a quadratic bezier curve with the current position as the start
// point, the control point is mirrored from the previous curves control point
// and the end point is defined by the x, y values.
$draw->pathCurveToQuadraticBezierSmoothAbsolute(
450,250
);
// This specifies a quadratic bezier curve with the current position as the start
// point, the control point is mirrored from the previous curves control point
// and the end point is defined relative from the current position by the x, y values.
$draw->pathCurveToQuadraticBezierSmoothRelative(
200,-100
);
$draw->pathFinish();
$imagick = new \Imagick();
$imagick->newImage(700, 500, $backgroundColor);
$imagick->setImageFormat("png");
$imagick->drawImage($draw);
header("Content-Type: image/png");
echo $imagick->getImageBlob();
?>
ImagickDraw::pathCurveToRelative
Draws a cubic Bezier curve
说明
public bool
ImagickDraw::pathCurveToRelative ( <span
class="methodparam">float $x1
, <span
class="methodparam">float $y1
, <span
class="methodparam">float $x2
, <span
class="methodparam">float $y2
, <span
class="methodparam">float $x
, <span
class="methodparam">float $y
)
Warning
本函数还未编写文档,仅有参数列表。
Draws a cubic Bezier curve from the current point to (x,y) using (x1,y1) as the control point at the beginning of the curve and (x2,y2) as the control point at the end of the curve using relative coordinates. At the end of the command, the new current point becomes the final (x,y) coordinate pair used in the polybezier.
参数
x1
x coordinate of starting control point
y1
y coordinate of starting control point
x2
x coordinate of ending control point
y2
y coordinate of ending control point
x
ending x coordinate
y
ending y coordinate
返回值
没有返回值。
ImagickDraw::pathCurveToSmoothAbsolute
Draws a cubic Bezier curve
说明
public bool
ImagickDraw::pathCurveToSmoothAbsolute (
float $x2
,
float $y2
,
float $x
,
float $y
)
Warning
本函数还未编写文档,仅有参数列表。
Draws a cubic Bezier curve from the current point to (x,y) using absolute coordinates. The first control point is assumed to be the reflection of the second control point on the previous command relative to the current point. (If there is no previous command or if the previous command was not an DrawPathCurveToAbsolute, DrawPathCurveToRelative, DrawPathCurveToSmoothAbsolute or DrawPathCurveToSmoothRelative, assume the first control point is coincident with the current point.) (x2,y2) is the second control point (i.e., the control point at the end of the curve). At the end of the command, the new current point becomes the final (x,y) coordinate pair used in the polybezier.
参数
x2
x coordinate of the second control point
y2
y coordinate of the second control point
x
x coordinate of the ending point
y
y coordinate of the ending point
返回值
没有返回值。
ImagickDraw::pathCurveToSmoothRelative
Draws a cubic Bezier curve
说明
public bool
ImagickDraw::pathCurveToSmoothRelative (
float $x2
,
float $y2
,
float $x
,
float $y
)
Warning
本函数还未编写文档,仅有参数列表。
Draws a cubic Bezier curve from the current point to (x,y) using relative coordinates. The first control point is assumed to be the reflection of the second control point on the previous command relative to the current point. (If there is no previous command or if the previous command was not an DrawPathCurveToAbsolute, DrawPathCurveToRelative, DrawPathCurveToSmoothAbsolute or DrawPathCurveToSmoothRelative, assume the first control point is coincident with the current point.) (x2,y2) is the second control point (i.e., the control point at the end of the curve). At the end of the command, the new current point becomes the final (x,y) coordinate pair used in the polybezier.
参数
x2
x coordinate of the second control point
y2
y coordinate of the second control point
x
x coordinate of the ending point
y
y coordinate of the ending point
返回值
没有返回值。
ImagickDraw::pathEllipticArcAbsolute
Draws an elliptical arc
说明
public bool
ImagickDraw::pathEllipticArcAbsolute (
float $rx
,
float $ry
,
float
$x_axis_rotation
, <span
class="type">bool $large_arc_flag
, <span
class="methodparam">bool $sweep_flag
, float $x
, float $y
)
Warning
本函数还未编写文档,仅有参数列表。
Draws an elliptical arc from the current point to (x, y) using absolute
coordinates. The size and orientation of the ellipse are defined by two
radii (rx, ry) and an xAxisRotation, which indicates how the ellipse as
a whole is rotated relative to the current coordinate system. The center
(cx, cy) of the ellipse is calculated automatically to satisfy the
constraints imposed by the other parameters. largeArcFlag and sweepFlag
contribute to the automatic calculations and help determine how the arc
is drawn. If largeArcFlag is true
then draw the larger of the
available arcs. If sweepFlag is true, then draw the arc matching a
clock-wise rotation.
参数
rx
x radius
ry
y radius
x_axis_rotation
x axis rotation
large_arc_flag
large arc flag
sweep_flag
sweep flag
x
x coordinate
y
y coordinate
返回值
没有返回值。
ImagickDraw::pathEllipticArcRelative
Draws an elliptical arc
说明
public bool
ImagickDraw::pathEllipticArcRelative (
float $rx
,
float $ry
,
float
$x_axis_rotation
, <span
class="type">bool $large_arc_flag
, <span
class="methodparam">bool $sweep_flag
, float $x
, float $y
)
Warning
本函数还未编写文档,仅有参数列表。
Draws an elliptical arc from the current point to (x, y) using relative
coordinates. The size and orientation of the ellipse are defined by two
radii (rx, ry) and an xAxisRotation, which indicates how the ellipse as
a whole is rotated relative to the current coordinate system. The center
(cx, cy) of the ellipse is calculated automatically to satisfy the
constraints imposed by the other parameters. largeArcFlag and sweepFlag
contribute to the automatic calculations and help determine how the arc
is drawn. If largeArcFlag is true
then draw the larger of the
available arcs. If sweepFlag is true, then draw the arc matching a
clock-wise rotation.
参数
rx
x radius
ry
y radius
x_axis_rotation
x axis rotation
large_arc_flag
large arc flag
sweep_flag
sweep flag
x
x coordinate
y
y coordinate
返回值
没有返回值。
ImagickDraw::pathFinish
Terminates the current path
说明
public bool ImagickDraw::pathFinish ( <span class="methodparam">void )
Warning
本函数还未编写文档,仅有参数列表。
Terminates the current path.
返回值
没有返回值。
ImagickDraw::pathLineToAbsolute
Draws a line path
说明
public bool
ImagickDraw::pathLineToAbsolute ( <span
class="methodparam">float $x
, <span
class="methodparam">float $y
)
Warning
本函数还未编写文档,仅有参数列表。
Draws a line path from the current point to the given coordinate using absolute coordinates. The coordinate then becomes the new current point.
参数
x
starting x coordinate
y
ending x coordinate
返回值
没有返回值。
ImagickDraw::pathLineToHorizontalAbsolute
Draws a horizontal line path
说明
public bool
<span
class="methodname">ImagickDraw::pathLineToHorizontalAbsolute (
float $x
)
Warning
本函数还未编写文档,仅有参数列表。
Draws a horizontal line path from the current point to the target point using absolute coordinates. The target point then becomes the new current point.
参数
x
x coordinate
返回值
没有返回值。
ImagickDraw::pathLineToHorizontalRelative
Draws a horizontal line
说明
public bool
<span
class="methodname">ImagickDraw::pathLineToHorizontalRelative (
float $x
)
Warning
本函数还未编写文档,仅有参数列表。
Draws a horizontal line path from the current point to the target point using relative coordinates. The target point then becomes the new current point.
参数
x
x coordinate
返回值
没有返回值。
ImagickDraw::pathLineToRelative
Draws a line path
说明
public bool
ImagickDraw::pathLineToRelative ( <span
class="methodparam">float $x
, <span
class="methodparam">float $y
)
Warning
本函数还未编写文档,仅有参数列表。
Draws a line path from the current point to the given coordinate using relative coordinates. The coordinate then becomes the new current point.
参数
x
starting x coordinate
y
starting y coordinate
返回值
没有返回值。
ImagickDraw::pathLineToVerticalAbsolute
Draws a vertical line
说明
public bool
ImagickDraw::pathLineToVerticalAbsolute
( float $y
)
Warning
本函数还未编写文档,仅有参数列表。
Draws a vertical line path from the current point to the target point using absolute coordinates. The target point then becomes the new current point.
参数
y
y coordinate
返回值
没有返回值。
ImagickDraw::pathLineToVerticalRelative
Draws a vertical line path
说明
public bool
ImagickDraw::pathLineToVerticalRelative
( float $y
)
Warning
本函数还未编写文档,仅有参数列表。
Draws a vertical line path from the current point to the target point using relative coordinates. The target point then becomes the new current point.
参数
y
y coordinate
返回值
没有返回值。
ImagickDraw::pathMoveToAbsolute
Starts a new sub-path
说明
public bool
ImagickDraw::pathMoveToAbsolute ( <span
class="methodparam">float $x
, <span
class="methodparam">float $y
)
Warning
本函数还未编写文档,仅有参数列表。
Starts a new sub-path at the given coordinate using absolute coordinates. The current point then becomes the specified coordinate.
参数
x
x coordinate of the starting point
y
y coordinate of the starting point
返回值
没有返回值。
ImagickDraw::pathMoveToRelative
Starts a new sub-path
说明
public bool
ImagickDraw::pathMoveToRelative ( <span
class="methodparam">float $x
, <span
class="methodparam">float $y
)
Warning
本函数还未编写文档,仅有参数列表。
Starts a new sub-path at the given coordinate using relative coordinates. The current point then becomes the specified coordinate.
参数
x
target x coordinate
y
target y coordinate
返回值
没有返回值。
ImagickDraw::pathStart
Declares the start of a path drawing list
说明
public bool ImagickDraw::pathStart ( <span class="methodparam">void )
Warning
本函数还未编写文档,仅有参数列表。
Declares the start of a path drawing list which is terminated by a matching DrawPathFinish() command. All other DrawPath commands must be enclosed between a and a DrawPathFinish() command. This is because path drawing commands are subordinate commands and they do not function by themselves.
返回值
没有返回值。
范例
示例 #1 ImagickDraw::pathStart
<?php
function pathStart($strokeColor, $fillColor, $backgroundColor) {
$draw = new \ImagickDraw();
$draw->setStrokeOpacity(1);
$draw->setStrokeColor($strokeColor);
$draw->setFillColor($fillColor);
$draw->setStrokeWidth(2);
$draw->setFontSize(72);
$draw->pathStart();
$draw->pathMoveToAbsolute(50, 50);
$draw->pathLineToAbsolute(100, 50);
$draw->pathLineToRelative(0, 50);
$draw->pathLineToHorizontalRelative(-50);
$draw->pathFinish();
$draw->pathStart();
$draw->pathMoveToAbsolute(50, 50);
$draw->pathMoveToRelative(300, 0);
$draw->pathLineToRelative(50, 0);
$draw->pathLineToVerticalRelative(50);
$draw->pathLineToHorizontalAbsolute(350);
$draw->pathclose();
$draw->pathFinish();
$draw->pathStart();
$draw->pathMoveToAbsolute(50, 300);
$draw->pathCurveToAbsolute(50, 300, 100, 200, 300, 300);
$draw->pathLineToVerticalAbsolute(350);
$draw->pathFinish();
$imagick = new \Imagick();
$imagick->newImage(500, 500, $backgroundColor);
$imagick->setImageFormat("png");
$imagick->drawImage($draw);
header("Content-Type: image/png");
echo $imagick->getImageBlob();
}
?>
ImagickDraw::point
Draws a point
说明
public bool
ImagickDraw::point ( <span
class="methodparam">float $x
, <span
class="methodparam">float $y
)
Warning
本函数还未编写文档,仅有参数列表。
Draws a point using the current stroke color and stroke thickness at the specified coordinates.
参数
x
point's x coordinate
y
point's y coordinate
返回值
没有返回值。
范例
示例 #1 ImagickDraw::point
<?php
function point($fillColor, $backgroundColor) {
$draw = new \ImagickDraw();
$draw->setFillColor($fillColor);
for ($x = 0; $x < 10000; $x++) {
$draw->point(rand(0, 500), rand(0, 500));
}
$imagick = new \Imagick();
$imagick->newImage(500, 500, $backgroundColor);
$imagick->setImageFormat("png");
$imagick->drawImage($draw);
header("Content-Type: image/png");
echo $imagick->getImageBlob();
}
?>
ImagickDraw::polygon
Draws a polygon
说明
public bool
ImagickDraw::polygon ( <span
class="methodparam">array
$coordinates
)
Warning
本函数还未编写文档,仅有参数列表。
Draws a polygon using the current stroke, stroke width, and fill color or texture, using the specified array of coordinates.
参数
coordinates
multidimensional array like array( array( 'x' => 3, 'y' => 4 ), array(
'x' => 2, 'y' => 6 ) );
返回值
成功时返回 true
。
范例
示例 #1 ImagickDraw::polygon
<?php
function polygon($strokeColor, $fillColor, $backgroundColor) {
$draw = new \ImagickDraw();
$draw->setStrokeOpacity(1);
$draw->setStrokeColor($strokeColor);
$draw->setStrokeWidth(4);
$draw->setFillColor($fillColor);
$points = [
['x' => 40 * 5, 'y' => 10 * 5],
['x' => 20 * 5, 'y' => 20 * 5],
['x' => 70 * 5, 'y' => 50 * 5],
['x' => 60 * 5, 'y' => 15 * 5],
];
$draw->polygon($points);
$image = new \Imagick();
$image->newImage(500, 300, $backgroundColor);
$image->setImageFormat("png");
$image->drawImage($draw);
header("Content-Type: image/png");
echo $image->getImageBlob();
}
?>
ImagickDraw::polyline
Draws a polyline
说明
public bool
ImagickDraw::polyline ( <span
class="methodparam">array
$coordinates
)
Warning
本函数还未编写文档,仅有参数列表。
Draws a polyline using the current stroke, stroke width, and fill color or texture, using the specified array of coordinates.
参数
coordinates
array of x and y coordinates: array( array( 'x' => 4, 'y' => 6 ),
array( 'x' => 8, 'y' => 10 ) )
返回值
成功时返回 true
。
范例
示例 #1 ImagickDraw::polyline
<?php
function polyline($strokeColor, $fillColor, $backgroundColor) {
$draw = new \ImagickDraw();
$draw->setStrokeOpacity(1);
$draw->setStrokeColor($strokeColor);
$draw->setFillColor($fillColor);
$draw->setStrokeWidth(5);
$points = [
['x' => 40 * 5, 'y' => 10 * 5],
['x' => 20 * 5, 'y' => 20 * 5],
['x' => 70 * 5, 'y' => 50 * 5],
['x' => 60 * 5, 'y' => 15 * 5]
];
$draw->polyline($points);
$image = new \Imagick();
$image->newImage(500, 300, $backgroundColor);
$image->setImageFormat("png");
$image->drawImage($draw);
header("Content-Type: image/png");
echo $image->getImageBlob();
}
?>
ImagickDraw::pop
Destroys the current ImagickDraw in the stack, and returns to the previously pushed ImagickDraw
说明
public bool ImagickDraw::pop ( <span class="methodparam">void )
Warning
本函数还未编写文档,仅有参数列表。
Destroys the current ImagickDraw in the stack, and returns to the previously pushed ImagickDraw. Multiple ImagickDraws may exist. It is an error to attempt to pop more ImagickDraws than have been pushed, and it is proper form to pop all ImagickDraws which have been pushed.
返回值
Returns true
on success and false on failure.
ImagickDraw::popClipPath
Terminates a clip path definition
说明
public bool ImagickDraw::popClipPath ( <span class="methodparam">void )
Warning
本函数还未编写文档,仅有参数列表。
Terminates a clip path definition.
返回值
没有返回值。
ImagickDraw::popDefs
Terminates a definition list
说明
public bool ImagickDraw::popDefs ( <span class="methodparam">void )
Warning
本函数还未编写文档,仅有参数列表。
Terminates a definition list.
返回值
没有返回值。
范例
示例 #1 ImagickDraw::popDefs
<?php
function popDefs($strokeColor, $fillColor, $backgroundColor) {
$draw = new \ImagickDraw();
$draw->setStrokeColor($strokeColor);
$draw->setFillColor($fillColor);
$draw->setstrokeOpacity(1);
$draw->setStrokeWidth(2);
$draw->setFontSize(72);
$draw->pushDefs();
$draw->setStrokeColor('white');
$draw->rectangle(50, 50, 200, 200);
$draw->popDefs();
$draw->rectangle(300, 50, 450, 200);
$imagick = new \Imagick();
$imagick->newImage(500, 500, $backgroundColor);
$imagick->setImageFormat("png");
$imagick->drawImage($draw);
header("Content-Type: image/png");
echo $imagick->getImageBlob();
}
?>
ImagickDraw::popPattern
Terminates a pattern definition
说明
public bool ImagickDraw::popPattern ( <span class="methodparam">void )
Warning
本函数还未编写文档,仅有参数列表。
Terminates a pattern definition.
返回值
成功时返回 true
, 或者在失败时返回 false
。
ImagickDraw::push
Clones the current ImagickDraw and pushes it to the stack
说明
public bool ImagickDraw::push ( <span class="methodparam">void )
Warning
本函数还未编写文档,仅有参数列表。
Clones the current ImagickDraw to create a new ImagickDraw, which is then added to the ImagickDraw stack. The original drawing ImagickDraw(s) may be returned to by invoking pop(). The ImagickDraws are stored on a ImagickDraw stack. For every Pop there must have already been an equivalent Push.
返回值
成功时返回 true
, 或者在失败时返回 false
。
范例
示例 #1 ImagickDraw::push
<?php
function push($strokeColor, $fillColor, $backgroundColor, $fillModifiedColor) {
$draw = new \ImagickDraw();
$draw->setStrokeColor($strokeColor);
$draw->setFillColor($fillModifiedColor);
$draw->setStrokeWidth(2);
$draw->setFontSize(72);
$draw->push();
$draw->translate(50, 50);
$draw->rectangle(200, 200, 300, 300);
$draw->pop();
$draw->setFillColor($fillColor);
$draw->rectangle(200, 200, 300, 300);
$imagick = new \Imagick();
$imagick->newImage(500, 500, $backgroundColor);
$imagick->setImageFormat("png");
$imagick->drawImage($draw);
header("Content-Type: image/png");
echo $imagick->getImageBlob();
}
?>
ImagickDraw::pushClipPath
Starts a clip path definition
说明
public bool
ImagickDraw::pushClipPath ( <span
class="methodparam">string
$clip_mask_id
)
Warning
本函数还未编写文档,仅有参数列表。
Starts a clip path definition which is comprised of any number of drawing commands and terminated by a ImagickDraw::popClipPath() command.
参数
clip_mask_id
Clip mask Id
返回值
没有返回值。
ImagickDraw::pushDefs
Indicates that following commands create named elements for early processing
说明
public bool ImagickDraw::pushDefs ( <span class="methodparam">void )
Warning
本函数还未编写文档,仅有参数列表。
Indicates that commands up to a terminating ImagickDraw::popDefs() command create named elements (e.g. clip-paths, textures, etc.) which may safely be processed earlier for the sake of efficiency.
返回值
没有返回值。
ImagickDraw::pushPattern
Indicates that subsequent commands up to a ImagickDraw::opPattern() command comprise the definition of a named pattern
说明
public bool
ImagickDraw::pushPattern ( <span
class="methodparam">string
$pattern_id
, <span
class="type">float $x
, <span
class="type">float $y
, <span
class="type">float $width
, <span
class="methodparam">float $height
)
Warning
本函数还未编写文档,仅有参数列表。
Indicates that subsequent commands up to a DrawPopPattern() command comprise the definition of a named pattern. The pattern space is assigned top left corner coordinates, a width and height, and becomes its own drawing space. Anything which can be drawn may be used in a pattern definition. Named patterns may be used as stroke or brush definitions.
参数
pattern_id
the pattern Id
x
x coordinate of the top-left corner
y
y coordinate of the top-left corner
width
width of the pattern
height
height of the pattern
返回值
成功时返回 true
, 或者在失败时返回 false
。
范例
示例 #1 ImagickDraw::pushPattern
<?php
function pushPattern($strokeColor, $fillColor, $backgroundColor) {
$draw = new \ImagickDraw();
$draw->setStrokeColor($strokeColor);
$draw->setFillColor($fillColor);
$draw->setStrokeWidth(1);
$draw->setStrokeOpacity(1);
$draw->setStrokeColor($strokeColor);
$draw->setFillColor($fillColor);
$draw->setStrokeWidth(1);
$draw->pushPattern("MyFirstPattern", 0, 0, 50, 50);
for ($x = 0; $x < 50; $x += 10) {
for ($y = 0; $y < 50; $y += 5) {
$positionX = $x + (($y / 5) % 5);
$draw->rectangle($positionX, $y, $positionX + 5, $y + 5);
}
}
$draw->popPattern();
$draw->setFillOpacity(0);
$draw->rectangle(100, 100, 400, 400);
$draw->setFillOpacity(1);
$draw->setFillOpacity(1);
$draw->push();
$draw->setFillPatternURL('#MyFirstPattern');
$draw->setFillColor('yellow');
$draw->rectangle(100, 100, 400, 400);
$draw->pop();
$imagick = new \Imagick();
$imagick->newImage(500, 500, $backgroundColor);
$imagick->setImageFormat("png");
$imagick->drawImage($draw);
header("Content-Type: image/png");
echo $imagick->getImageBlob();
}
?>
ImagickDraw::rectangle
Draws a rectangle
说明
public bool
ImagickDraw::rectangle ( <span
class="methodparam">float $x1
, <span
class="methodparam">float $y1
, <span
class="methodparam">float $x2
, <span
class="methodparam">float $y2
)
Warning
本函数还未编写文档,仅有参数列表。
Draws a rectangle given two coordinates and using the current stroke, stroke width, and fill settings.
参数
x1
x coordinate of the top left corner
y1
y coordinate of the top left corner
x2
x coordinate of the bottom right corner
y2
y coordinate of the bottom right corner
返回值
没有返回值。
范例
示例 #1 ImagickDraw::rectangle
<?php
function rectangle($strokeColor, $fillColor, $backgroundColor) {
$draw = new \ImagickDraw();
$strokeColor = new \ImagickPixel($strokeColor);
$fillColor = new \ImagickPixel($fillColor);
$draw->setStrokeColor($strokeColor);
$draw->setFillColor($fillColor);
$draw->setStrokeOpacity(1);
$draw->setStrokeWidth(2);
$draw->rectangle(200, 200, 300, 300);
$imagick = new \Imagick();
$imagick->newImage(500, 500, $backgroundColor);
$imagick->setImageFormat("png");
$imagick->drawImage($draw);
header("Content-Type: image/png");
echo $imagick->getImageBlob();
}
?>
ImagickDraw::render
Renders all preceding drawing commands onto the image
说明
public bool ImagickDraw::render ( <span class="methodparam">void )
Warning
本函数还未编写文档,仅有参数列表。
Renders all preceding drawing commands onto the image.
返回值
成功时返回 true
, 或者在失败时返回 false
。
ImagickDraw::resetVectorGraphics
Description
说明
public bool ImagickDraw::resetVectorGraphics ( <span class="methodparam">void )
Resets the vector graphics.
参数
此函数没有参数。
返回值
成功时返回 true
。
ImagickDraw::rotate
Applies the specified rotation to the current coordinate space
说明
public bool
ImagickDraw::rotate ( <span
class="methodparam">float $degrees
)
Warning
本函数还未编写文档,仅有参数列表。
Applies the specified rotation to the current coordinate space.
参数
degrees
degrees to rotate
返回值
没有返回值。
范例
示例 #1 ImagickDraw::rotate
<?php
function rotate($strokeColor, $fillColor, $backgroundColor, $fillModifiedColor) {
$draw = new \ImagickDraw();
$draw->setStrokeColor($strokeColor);
$draw->setStrokeOpacity(1);
$draw->setFillColor($fillColor);
$draw->rectangle(200, 200, 300, 300);
$draw->setFillColor($fillModifiedColor);
$draw->rotate(15);
$draw->rectangle(200, 200, 300, 300);
$image = new \Imagick();
$image->newImage(500, 500, $backgroundColor);
$image->setImageFormat("png");
$image->drawImage($draw);
header("Content-Type: image/png");
echo $image->getImageBlob();
}
?>
ImagickDraw::roundRectangle
Draws a rounded rectangle
说明
public bool
ImagickDraw::roundRectangle ( <span
class="methodparam">float $x1
, <span
class="methodparam">float $y1
, <span
class="methodparam">float $x2
, <span
class="methodparam">float $y2
, <span
class="methodparam">float $rx
, <span
class="methodparam">float $ry
)
Warning
本函数还未编写文档,仅有参数列表。
Draws a rounded rectangle given two coordinates, x & y corner radiuses and using the current stroke, stroke width, and fill settings.
参数
x1
x coordinate of the top left corner
y1
y coordinate of the top left corner
x2
x coordinate of the bottom right
y2
y coordinate of the bottom right
rx
x rounding
ry
y rounding
返回值
没有返回值。
范例
示例 #1 ImagickDraw::roundRectangle
<?php
function roundRectangle($strokeColor, $fillColor, $backgroundColor, $startX, $startY, $endX, $endY, $roundX, $roundY) {
$draw = new \ImagickDraw();
$draw->setStrokeColor($strokeColor);
$draw->setFillColor($fillColor);
$draw->setStrokeOpacity(1);
$draw->setStrokeWidth(2);
$draw->roundRectangle($startX, $startY, $endX, $endY, $roundX, $roundY);
$imagick = new \Imagick();
$imagick->newImage(500, 500, $backgroundColor);
$imagick->setImageFormat("png");
$imagick->drawImage($draw);
header("Content-Type: image/png");
echo $imagick->getImageBlob();
}
?>
ImagickDraw::scale
Adjusts the scaling factor
说明
public bool
ImagickDraw::scale ( <span
class="methodparam">float $x
, <span
class="methodparam">float $y
)
Warning
本函数还未编写文档,仅有参数列表。
Adjusts the scaling factor to apply in the horizontal and vertical directions to the current coordinate space.
参数
x
horizontal factor
y
vertical factor
返回值
没有返回值。
范例
示例 #1 ImagickDraw::scale
<?php
function scale($strokeColor, $fillColor, $backgroundColor, $fillModifiedColor) {
$draw = new \ImagickDraw();
$draw->setStrokeColor($strokeColor);
$draw->setStrokeWidth(4);
$draw->setFillColor($fillColor);
$draw->rectangle(200, 200, 300, 300);
$draw->setFillColor($fillModifiedColor);
$draw->scale(1.4, 1.4);
$draw->rectangle(200, 200, 300, 300);
$image = new \Imagick();
$image->newImage(500, 500, $backgroundColor);
$image->setImageFormat("png");
$image->drawImage($draw);
header("Content-Type: image/png");
echo $image->getImageBlob();
}
?>
ImagickDraw::setClipPath
Associates a named clipping path with the image
说明
public bool
ImagickDraw::setClipPath ( <span
class="methodparam">string $clip_mask
)
Warning
本函数还未编写文档,仅有参数列表。
Associates a named clipping path with the image. Only the areas drawn on by the clipping path will be modified as long as it remains in effect.
参数
clip_mask
the clipping path name
返回值
没有返回值。
范例
示例 #1 ImagickDraw::setClipPath
<?php
function setClipPath($strokeColor, $fillColor, $backgroundColor) {
$draw = new \ImagickDraw();
$draw->setStrokeColor($strokeColor);
$draw->setFillColor($fillColor);
$draw->setStrokeOpacity(1);
$draw->setStrokeWidth(2);
$clipPathName = 'testClipPath';
$draw->pushClipPath($clipPathName);
$draw->rectangle(0, 0, 250, 250);
$draw->popClipPath();
$draw->setClipPath($clipPathName);
$draw->rectangle(100, 100, 400, 400);
$imagick = new \Imagick();
$imagick->newImage(500, 500, $backgroundColor);
$imagick->setImageFormat("png");
$imagick->drawImage($draw);
header("Content-Type: image/png");
echo $imagick->getImageBlob();
}
?>
ImagickDraw::setClipRule
Set the polygon fill rule to be used by the clipping path
说明
public bool
ImagickDraw::setClipRule ( <span
class="methodparam">int $fill_rule
)
Warning
本函数还未编写文档,仅有参数列表。
Set the polygon fill rule to be used by the clipping path.
参数
fill_rule
FILLRULE_ constant
返回值
没有返回值。
范例
示例 #1 ImagickDraw::setClipRule
<?php
function setClipRule($strokeColor, $fillColor, $backgroundColor) {
$draw = new \ImagickDraw();
$draw->setStrokeColor($strokeColor);
$draw->setFillColor($fillColor);
$draw->setStrokeOpacity(1);
$draw->setStrokeWidth(2);
//\Imagick::FILLRULE_EVENODD
//\Imagick::FILLRULE_NONZERO
$clipPathName = 'testClipPath';
$draw->pushClipPath($clipPathName);
$draw->setClipRule(\Imagick::FILLRULE_EVENODD);
$draw->rectangle(0, 0, 300, 500);
$draw->rectangle(200, 0, 500, 500);
$draw->popClipPath();
$draw->setClipPath($clipPathName);
$draw->rectangle(200, 200, 300, 300);
$imagick = new \Imagick();
$imagick->newImage(500, 500, $backgroundColor);
$imagick->setImageFormat("png");
$imagick->drawImage($draw);
header("Content-Type: image/png");
echo $imagick->getImageBlob();
}
?>
ImagickDraw::setClipUnits
Sets the interpretation of clip path units
说明
public bool
ImagickDraw::setClipUnits ( <span
class="methodparam">int $clip_units
)
Warning
本函数还未编写文档,仅有参数列表。
Sets the interpretation of clip path units.
参数
clip_units
the number of clip units
返回值
没有返回值。
范例
示例 #1 ImagickDraw::setClipUnits
<?php
function setClipUnits($strokeColor, $fillColor, $backgroundColor) {
$draw = new \ImagickDraw();
$draw->setStrokeColor($strokeColor);
$draw->setFillColor($fillColor);
$draw->setStrokeOpacity(1);
$draw->setStrokeWidth(2);
$clipPathName = 'testClipPath';
$draw->setClipUnits(\Imagick::RESOLUTION_PIXELSPERINCH);
$draw->pushClipPath($clipPathName);
$draw->rectangle(0, 0, 250, 250);
$draw->popClipPath();
$draw->setClipPath($clipPathName);
//RESOLUTION_PIXELSPERINCH
//RESOLUTION_PIXELSPERCENTIMETER
$draw->rectangle(200, 200, 300, 300);
$imagick = new \Imagick();
$imagick->newImage(500, 500, $backgroundColor);
$imagick->setImageFormat("png");
$imagick->drawImage($draw);
header("Content-Type: image/png");
echo $imagick->getImageBlob();
}
?>
ImagickDraw::setFillAlpha
Sets the opacity to use when drawing using the fill color or fill texture
说明
public bool
ImagickDraw::setFillAlpha ( <span
class="methodparam">float $opacity
)
Warning
本函数还未编写文档,仅有参数列表。
Sets the opacity to use when drawing using the fill color or fill texture. Fully opaque is 1.0.
参数
opacity
fill alpha
返回值
没有返回值。
范例
示例 #1 ImagickDraw::setFillAlpha
<?php
function setFillAlpha($strokeColor, $fillColor, $backgroundColor) {
$draw = new \ImagickDraw();
$draw->setStrokeColor($strokeColor);
$draw->setFillColor($fillColor);
$draw->setStrokeOpacity(1);
$draw->setStrokeWidth(2);
$draw->rectangle(100, 200, 200, 300);
@$draw->setFillAlpha(0.4);
$draw->rectangle(300, 200, 400, 300);
$imagick = new \Imagick();
$imagick->newImage(500, 500, $backgroundColor);
$imagick->setImageFormat("png");
$imagick->drawImage($draw);
header("Content-Type: image/png");
echo $imagick->getImageBlob();
}
?>
ImagickDraw::setFillColor
Sets the fill color to be used for drawing filled objects
说明
public bool
ImagickDraw::setFillColor ( <span
class="methodparam">ImagickPixel
$fill_pixel
)
Warning
本函数还未编写文档,仅有参数列表。
Sets the fill color to be used for drawing filled objects.
参数
fill_pixel
ImagickPixel to use to set the color
返回值
没有返回值。
范例
示例 #1 ImagickDraw::setFillColor
<?php
function setFillColor($strokeColor, $fillColor, $backgroundColor) {
$draw = new \ImagickDraw();
$draw->setStrokeOpacity(1);
$draw->setStrokeWidth(1.5);
$draw->setStrokeColor($strokeColor);
$draw->setFillColor($fillColor);
$draw->rectangle(50, 50, 150, 150);
$draw->setFillColor("rgb(200, 32, 32)");
$draw->rectangle(200, 50, 300, 150);
$image = new \Imagick();
$image->newImage(500, 500, $backgroundColor);
$image->setImageFormat("png");
$image->drawImage($draw);
header("Content-Type: image/png");
echo $image->getImageBlob();
}
?>
ImagickDraw::setFillOpacity
Sets the opacity to use when drawing using the fill color or fill texture
说明
public bool
ImagickDraw::setFillOpacity ( <span
class="methodparam">float
$fillOpacity
)
Warning
本函数还未编写文档,仅有参数列表。
Sets the opacity to use when drawing using the fill color or fill texture. Fully opaque is 1.0.
参数
fillOpacity
the fill opacity
返回值
没有返回值。
范例
示例 #1 ImagickDraw::setFillOpacity
<?php
function setFillOpacity($strokeColor, $fillColor, $backgroundColor) {
$draw = new \ImagickDraw();
$draw->setStrokeColor($strokeColor);
$draw->setFillColor($fillColor);
$draw->setStrokeOpacity(1);
$draw->setStrokeWidth(2);
$draw->rectangle(100, 200, 200, 300);
$draw->setFillOpacity(0.4);
$draw->rectangle(300, 200, 400, 300);
$imagick = new \Imagick();
$imagick->newImage(500, 500, $backgroundColor);
$imagick->setImageFormat("png");
$imagick->drawImage($draw);
header("Content-Type: image/png");
echo $imagick->getImageBlob();
}
?>
ImagickDraw::setFillPatternURL
Sets the URL to use as a fill pattern for filling objects
说明
public bool
ImagickDraw::setFillPatternURL ( <span
class="methodparam">string $fill_url
)
Warning
本函数还未编写文档,仅有参数列表。
Sets the URL to use as a fill pattern for filling objects. Only local URLs ("#identifier") are supported at this time. These local URLs are normally created by defining a named fill pattern with DrawPushPattern/DrawPopPattern.
参数
fill_url
URL to use to obtain fill pattern.
返回值
成功时返回 true
, 或者在失败时返回 false
。
ImagickDraw::setFillRule
Sets the fill rule to use while drawing polygons
说明
public bool
ImagickDraw::setFillRule ( <span
class="methodparam">int $fill_rule
)
Warning
本函数还未编写文档,仅有参数列表。
Sets the fill rule to use while drawing polygons.
参数
fill_rule
FILLRULE_ constant
返回值
没有返回值。
范例
示例 #1 ImagickDraw::setFillRule
<?php
function setFillRule($fillColor, $strokeColor, $backgroundColor) {
$draw = new \ImagickDraw();
$draw->setStrokeWidth(1);
$draw->setStrokeColor($strokeColor);
$draw->setFillColor($fillColor);
$fillRules = [\Imagick::FILLRULE_NONZERO, \Imagick::FILLRULE_EVENODD];
$points = 11;
$size = 150;
$draw->translate(175, 160);
for ($x = 0; $x < 2; $x++) {
$draw->setFillRule($fillRules[$x]);
$draw->pathStart();
for ($n = 0; $n < $points * 2; $n++) {
if ($n >= $points) {
$angle = fmod($n * 360 * 4 / $points, 360) * pi() / 180;
}
else {
$angle = fmod($n * 360 * 3 / $points, 360) * pi() / 180;
}
$positionX = $size * sin($angle);
$positionY = $size * cos($angle);
if ($n == 0) {
$draw->pathMoveToAbsolute($positionX, $positionY);
}
else {
$draw->pathLineToAbsolute($positionX, $positionY);
}
}
$draw->pathClose();
$draw->pathFinish();
$draw->translate(325, 0);
}
$image = new \Imagick();
$image->newImage(700, 320, $backgroundColor);
$image->setImageFormat("png");
$image->drawImage($draw);
header("Content-Type: image/png");
echo $image->getImageBlob();
}
?>
ImagickDraw::setFont
Sets the fully-specified font to use when annotating with text
说明
public bool
ImagickDraw::setFont ( <span
class="methodparam">string $font_name
)
Warning
本函数还未编写文档,仅有参数列表。
Sets the fully-specified font to use when annotating with text.
参数
font_name
返回值
成功时返回 true
。
范例
示例 #1 ImagickDraw::setFont
<?php
function setFont($fillColor, $strokeColor, $backgroundColor) {
$draw = new \ImagickDraw();
$draw->setStrokeColor($strokeColor);
$draw->setFillColor($fillColor);
$draw->setStrokeWidth(2);
$draw->setFontSize(36);
$draw->setFont("../fonts/Arial.ttf");
$draw->annotation(50, 50, "Lorem Ipsum!");
$draw->setFont("../fonts/Consolas.ttf");
$draw->annotation(50, 100, "Lorem Ipsum!");
$draw->setFont("../fonts/CANDY.TTF");
$draw->annotation(50, 150, "Lorem Ipsum!");
$draw->setFont("../fonts/Inconsolata-dz.otf");
$draw->annotation(50, 200, "Lorem Ipsum!");
$imagick = new \Imagick();
$imagick->newImage(500, 300, $backgroundColor);
$imagick->setImageFormat("png");
$imagick->drawImage($draw);
header("Content-Type: image/png");
echo $imagick->getImageBlob();
}
?>
ImagickDraw::setFontFamily
Sets the font family to use when annotating with text
说明
public bool
ImagickDraw::setFontFamily ( <span
class="methodparam">string
$font_family
)
Warning
本函数还未编写文档,仅有参数列表。
Sets the font family to use when annotating with text.
参数
font_family
the font family
返回值
成功时返回 true
。
范例
示例 #1 ImagickDraw::setFontFamily
<?php
function setFontFamily($fillColor, $strokeColor, $backgroundColor) {
$draw = new \ImagickDraw();
$strokeColor = new \ImagickPixel($strokeColor);
$fillColor = new \ImagickPixel($fillColor);
$draw->setStrokeColor($strokeColor);
$draw->setFillColor($fillColor);
$draw->setStrokeWidth(2);
$draw->setFontSize(48);
$draw->setFontFamily("Times");
$draw->annotation(50, 50, "Lorem Ipsum!");
$draw->setFontFamily("AvantGarde");
$draw->annotation(50, 100, "Lorem Ipsum!");
$draw->setFontFamily("NewCenturySchlbk");
$draw->annotation(50, 150, "Lorem Ipsum!");
$draw->setFontFamily("Palatino");
$draw->annotation(50, 200, "Lorem Ipsum!");
$imagick = new \Imagick();
$imagick->newImage(450, 250, $backgroundColor);
$imagick->setImageFormat("png");
$imagick->drawImage($draw);
header("Content-Type: image/png");
echo $imagick->getImageBlob();
}
?>
ImagickDraw::setFontSize
Sets the font pointsize to use when annotating with text
说明
public bool
ImagickDraw::setFontSize ( <span
class="methodparam">float $pointsize
)
Warning
本函数还未编写文档,仅有参数列表。
Sets the font pointsize to use when annotating with text.
参数
pointsize
the point size
返回值
没有返回值。
范例
示例 #1 ImagickDraw::setFontSize
<?php
function setFontSize($fillColor, $strokeColor, $backgroundColor) {
$draw = new \ImagickDraw();
$draw->setStrokeOpacity(1);
$draw->setStrokeColor($strokeColor);
$draw->setFillColor($fillColor);
$draw->setStrokeWidth(2);
$draw->setFont("../fonts/Arial.ttf");
$sizes = [24, 36, 48, 60, 72];
foreach ($sizes as $size) {
$draw->setFontSize($size);
$draw->annotation(50, ($size * $size / 16), "Lorem Ipsum!");
}
$imagick = new \Imagick();
$imagick->newImage(500, 500, $backgroundColor);
$imagick->setImageFormat("png");
$imagick->drawImage($draw);
header("Content-Type: image/png");
echo $imagick->getImageBlob();
}
?>
ImagickDraw::setFontStretch
Sets the font stretch to use when annotating with text
说明
public bool
ImagickDraw::setFontStretch ( <span
class="methodparam">int $fontStretch
)
Warning
本函数还未编写文档,仅有参数列表。
Sets the font stretch to use when annotating with text. The AnyStretch enumeration acts as a wild-card "don't care" option.
参数
fontStretch
STRETCH_ constant
返回值
没有返回值。
范例
示例 #1 ImagickDraw::setFontStretch
<?php
function setFontStretch($fillColor, $strokeColor, $backgroundColor) {
$draw = new \ImagickDraw();
$draw->setStrokeColor($strokeColor);
$draw->setFillColor($fillColor);
$draw->setStrokeWidth(2);
$draw->setFontSize(36);
$fontStretchTypes = [
\Imagick::STRETCH_ULTRACONDENSED,
\Imagick::STRETCH_CONDENSED,
\Imagick::STRETCH_SEMICONDENSED,
\Imagick::STRETCH_SEMIEXPANDED,
\Imagick::STRETCH_EXPANDED,
\Imagick::STRETCH_EXTRAEXPANDED,
\Imagick::STRETCH_ULTRAEXPANDED,
\Imagick::STRETCH_ANY
];
$offset = 0;
foreach ($fontStretchTypes as $fontStretch) {
$draw->setFontStretch($fontStretch);
$draw->annotation(50, 75 + $offset, "Lorem Ipsum!");
$offset += 50;
}
$imagick = new \Imagick();
$imagick->newImage(500, 500, $backgroundColor);
$imagick->setImageFormat("png");
$imagick->drawImage($draw);
header("Content-Type: image/png");
echo $imagick->getImageBlob();
}
?>
ImagickDraw::setFontStyle
Sets the font style to use when annotating with text
说明
public bool
ImagickDraw::setFontStyle ( <span
class="methodparam">int $style
)
Warning
本函数还未编写文档,仅有参数列表。
Sets the font style to use when annotating with text. The AnyStyle enumeration acts as a wild-card "don't care" option.
参数
style
STYLETYPE_ constant
返回值
没有返回值。
范例
示例 #1 ImagickDraw::setFontStyle
<?php
function setFontStyle($fillColor, $strokeColor, $backgroundColor) {
$draw = new \ImagickDraw();
$draw->setStrokeColor($strokeColor);
$draw->setFillColor($fillColor);
$draw->setStrokeWidth(1);
$draw->setFontSize(36);
$draw->setFontStyle(\Imagick::STYLE_NORMAL);
$draw->annotation(50, 50, "Lorem Ipsum!");
$draw->setFontStyle(\Imagick::STYLE_ITALIC);
$draw->annotation(50, 100, "Lorem Ipsum!");
$draw->setFontStyle(\Imagick::STYLE_OBLIQUE);
$draw->annotation(50, 150, "Lorem Ipsum!");
$imagick = new \Imagick();
$imagick->newImage(350, 300, $backgroundColor);
$imagick->setImageFormat("png");
$imagick->drawImage($draw);
header("Content-Type: image/png");
echo $imagick->getImageBlob();
}
?>
ImagickDraw::setFontWeight
Sets the font weight
说明
public bool
ImagickDraw::setFontWeight ( <span
class="methodparam">int $font_weight
)
Warning
本函数还未编写文档,仅有参数列表。
Sets the font weight to use when annotating with text.
参数
font_weight
返回值
范例
示例 #1 ImagickDraw::setFontWeight
<?php
function setFontWeight($fillColor, $strokeColor, $backgroundColor) {
$draw = new \ImagickDraw();
$draw->setStrokeColor($strokeColor);
$draw->setFillColor($fillColor);
$draw->setStrokeWidth(1);
$draw->setFontSize(36);
$draw->setFontWeight(100);
$draw->annotation(50, 50, "Lorem Ipsum!");
$draw->setFontWeight(200);
$draw->annotation(50, 100, "Lorem Ipsum!");
$draw->setFontWeight(400);
$draw->annotation(50, 150, "Lorem Ipsum!");
$draw->setFontWeight(800);
$draw->annotation(50, 200, "Lorem Ipsum!");
$imagick = new \Imagick();
$imagick->newImage(500, 500, $backgroundColor);
$imagick->setImageFormat("png");
$imagick->drawImage($draw);
header("Content-Type: image/png");
echo $imagick->getImageBlob();
}
?>
ImagickDraw::setGravity
Sets the text placement gravity
说明
public bool
ImagickDraw::setGravity ( <span
class="methodparam">int $gravity
)
Warning
本函数还未编写文档,仅有参数列表。
Sets the text placement gravity to use when annotating with text.
参数
gravity
GRAVITY_ constant
返回值
没有返回值。
范例
示例 #1 ImagickDraw::setGravity
<?php
function setGravity($fillColor, $strokeColor, $backgroundColor) {
$draw = new \ImagickDraw();
$draw->setStrokeColor($strokeColor);
$draw->setFillColor($fillColor);
$draw->setStrokeWidth(1);
$draw->setFontSize(24);
$gravitySettings = array(
\Imagick::GRAVITY_NORTHWEST => 'NorthWest',
\Imagick::GRAVITY_NORTH => 'North',
\Imagick::GRAVITY_NORTHEAST => 'NorthEast',
\Imagick::GRAVITY_WEST => 'West',
\Imagick::GRAVITY_CENTER => 'Centre',
\Imagick::GRAVITY_SOUTHWEST => 'SouthWest',
\Imagick::GRAVITY_SOUTH => 'South',
\Imagick::GRAVITY_SOUTHEAST => 'SouthEast',
\Imagick::GRAVITY_EAST => 'East'
);
$draw->setFont("../fonts/Arial.ttf");
foreach ($gravitySettings as $type => $description) {
$draw->setGravity($type);
$draw->annotation(50, 50, '"' . $description . '"');
}
$imagick = new \Imagick();
$imagick->newImage(500, 500, $backgroundColor);
$imagick->setImageFormat("png");
$imagick->drawImage($draw);
header("Content-Type: image/png");
echo $imagick->getImageBlob();
}
?>
ImagickDraw::setResolution
Description
说明
public bool
ImagickDraw::setResolution ( <span
class="methodparam">float
$x_resolution
, <span
class="type">float $y_resolution
)
Sets the resolution.
参数
x_resolution
y_resolution
返回值
成功时返回 true
。
ImagickDraw::setStrokeAlpha
Specifies the opacity of stroked object outlines
说明
public bool
ImagickDraw::setStrokeAlpha ( <span
class="methodparam">float $opacity
)
Warning
本函数还未编写文档,仅有参数列表。
Specifies the opacity of stroked object outlines.
参数
opacity
opacity
返回值
没有返回值。
范例
示例 #1 ImagickDraw::setStrokeAlpha
<?php
function setStrokeAlpha($strokeColor, $fillColor, $backgroundColor) {
$draw = new \ImagickDraw();
$draw->setStrokeColor($strokeColor);
$draw->setFillColor($fillColor);
$draw->setStrokeWidth(4);
$draw->line(100, 100, 400, 145);
$draw->rectangle(100, 200, 225, 350);
$draw->setStrokeOpacity(0.1);
$draw->line(100, 120, 400, 165);
$draw->rectangle(275, 200, 400, 350);
$image = new \Imagick();
$image->newImage(500, 400, $backgroundColor);
$image->setImageFormat("png");
$image->drawImage($draw);
header("Content-Type: image/png");
echo $image->getImageBlob();
}
?>
ImagickDraw::setStrokeAntialias
Controls whether stroked outlines are antialiased
说明
public bool
ImagickDraw::setStrokeAntialias ( <span
class="methodparam">bool
$stroke_antialias
)
Warning
本函数还未编写文档,仅有参数列表。
Controls whether stroked outlines are antialiased. Stroked outlines are antialiased by default. When antialiasing is disabled stroked pixels are thresholded to determine if the stroke color or underlying canvas color should be used.
参数
stroke_antialias
the antialias setting
返回值
没有返回值。
范例
示例 #1 <span class="function">ImagickDraw::setStrokeAntialias
<?php
function setStrokeAntialias($strokeColor, $fillColor, $backgroundColor) {
$draw = new \ImagickDraw();
$draw->setStrokeColor($strokeColor);
$draw->setFillColor($fillColor);
$draw->setStrokeWidth(1);
$draw->setStrokeAntialias(false);
$draw->line(100, 100, 400, 105);
$draw->line(100, 140, 400, 185);
$draw->setStrokeAntialias(true);
$draw->line(100, 110, 400, 115);
$draw->line(100, 150, 400, 195);
$image = new \Imagick();
$image->newImage(500, 250, $backgroundColor);
$image->setImageFormat("png");
$image->drawImage($draw);
header("Content-Type: image/png");
echo $image->getImageBlob();
}
?>
ImagickDraw::setStrokeColor
Sets the color used for stroking object outlines
说明
public bool
ImagickDraw::setStrokeColor ( <span
class="methodparam">ImagickPixel
$stroke_pixel
)
Warning
本函数还未编写文档,仅有参数列表。
Sets the color used for stroking object outlines.
参数
stroke_pixel
the stroke color
返回值
没有返回值。
范例
示例 #1 ImagickDraw::setStrokeColor
<?php
function setStrokeColor($strokeColor, $fillColor, $backgroundColor) {
$draw = new \ImagickDraw();
$draw->setStrokeColor($strokeColor);
$draw->setFillColor($fillColor);
$draw->setStrokeWidth(5);
$draw->line(100, 100, 400, 145);
$draw->rectangle(100, 200, 225, 350);
$draw->setStrokeOpacity(0.1);
$draw->line(100, 120, 400, 165);
$draw->rectangle(275, 200, 400, 350);
$image = new \Imagick();
$image->newImage(500, 400, $backgroundColor);
$image->setImageFormat("png");
$image->drawImage($draw);
header("Content-Type: image/png");
echo $image->getImageBlob();
}
?>
ImagickDraw::setStrokeDashArray
Specifies the pattern of dashes and gaps used to stroke paths
说明
public bool
ImagickDraw::setStrokeDashArray ( <span
class="methodparam">array $dashArray
)
Warning
本函数还未编写文档,仅有参数列表。
Specifies the pattern of dashes and gaps used to stroke paths. The strokeDashArray represents an array of numbers that specify the lengths of alternating dashes and gaps in pixels. If an odd number of values is provided, then the list of values is repeated to yield an even number of values. To remove an existing dash array, pass a zero number_elements argument and null dash_array. A typical strokeDashArray_ array might contain the members 5 3 2.
参数
dashArray
array of floats
返回值
成功时返回 true
。
范例
示例 #1 <span class="function">ImagickDraw::setStrokeDashArray
<?php
function setStrokeDashArray($strokeColor, $fillColor, $backgroundColor) {
$draw = new \ImagickDraw();
$draw->setStrokeColor($strokeColor);
$draw->setFillColor($fillColor);
$draw->setStrokeWidth(4);
$draw->setStrokeDashArray([10, 10]);
$draw->rectangle(100, 50, 225, 175);
$draw->setStrokeDashArray([20, 5, 20, 5, 5, 5,]);
$draw->rectangle(275, 50, 400, 175);
$draw->setStrokeDashArray([20, 5, 20, 5, 5]);
$draw->rectangle(100, 200, 225, 350);
$draw->setStrokeDashArray([1, 1, 1, 1, 2, 2, 3, 3, 5, 5, 8, 8, 13, 13, 21, 21, 34, 34, 55, 55, 89, 89, 144, 144, 233, 233, 377, 377, 610, 610, 987, 987, 1597, 1597, 2584, 2584, 4181, 4181,]);
$draw->rectangle(275, 200, 400, 350);
$image = new \Imagick();
$image->newImage(500, 400, $backgroundColor);
$image->setImageFormat("png");
$image->drawImage($draw);
header("Content-Type: image/png");
echo $image->getImageBlob();
}
?>
ImagickDraw::setStrokeDashOffset
Specifies the offset into the dash pattern to start the dash
说明
public bool
ImagickDraw::setStrokeDashOffset ( <span
class="methodparam">float
$dash_offset
)
Warning
本函数还未编写文档,仅有参数列表。
Specifies the offset into the dash pattern to start the dash.
参数
dash_offset
dash offset
返回值
没有返回值。
范例
示例 #1 <span class="function">ImagickDraw::setStrokeDashOffset
<?php
function setStrokeDashOffset($strokeColor, $fillColor, $backgroundColor) {
$draw = new \ImagickDraw();
$draw->setStrokeColor($strokeColor);
$draw->setFillColor($fillColor);
$draw->setStrokeWidth(4);
$draw->setStrokeDashArray([20, 20]);
$draw->setStrokeDashOffset(0);
$draw->rectangle(100, 50, 225, 175);
//Start the dash effect halfway through the solid portion
$draw->setStrokeDashOffset(10);
$draw->rectangle(275, 50, 400, 175);
//Start the dash effect on the space portion
$draw->setStrokeDashOffset(20);
$draw->rectangle(100, 200, 225, 350);
$draw->setStrokeDashOffset(5);
$draw->rectangle(275, 200, 400, 350);
$image = new \Imagick();
$image->newImage(500, 400, $backgroundColor);
$image->setImageFormat("png");
$image->drawImage($draw);
header("Content-Type: image/png");
echo $image->getImageBlob();
}
?>
ImagickDraw::setStrokeLineCap
Specifies the shape to be used at the end of open subpaths when they are stroked
说明
public bool
ImagickDraw::setStrokeLineCap ( <span
class="methodparam">int $linecap
)
Warning
本函数还未编写文档,仅有参数列表。
Specifies the shape to be used at the end of open subpaths when they are stroked.
参数
linecap
LINECAP_ constant
返回值
没有返回值。
范例
示例 #1 ImagickDraw::setStrokeLineCap
<?php
function setStrokeLineCap($strokeColor, $fillColor, $backgroundColor) {
$draw = new \ImagickDraw();
$draw->setStrokeColor($strokeColor);
$draw->setFillColor($fillColor);
$draw->setStrokeWidth(25);
$lineTypes = [\Imagick::LINECAP_BUTT, \Imagick::LINECAP_ROUND, \Imagick::LINECAP_SQUARE,];
$offset = 0;
foreach ($lineTypes as $lineType) {
$draw->setStrokeLineCap($lineType);
$draw->line(50 + $offset, 50, 50 + $offset, 250);
$offset += 50;
}
$imagick = new \Imagick();
$imagick->newImage(300, 300, $backgroundColor);
$imagick->setImageFormat("png");
$imagick->drawImage($draw);
header("Content-Type: image/png");
echo $imagick->getImageBlob();
}
?>
ImagickDraw::setStrokeLineJoin
Specifies the shape to be used at the corners of paths when they are stroked
说明
public bool
ImagickDraw::setStrokeLineJoin ( <span
class="methodparam">int $linejoin
)
Warning
本函数还未编写文档,仅有参数列表。
Specifies the shape to be used at the corners of paths (or other vector shapes) when they are stroked.
参数
linejoin
LINEJOIN_ constant
返回值
没有返回值。
范例
示例 #1 <span class="function">ImagickDraw::setStrokeLineJoin
<?php
function setStrokeLineJoin($strokeColor, $fillColor, $backgroundColor) {
$draw = new \ImagickDraw();
$draw->setStrokeWidth(1);
$draw->setStrokeColor($strokeColor);
$draw->setFillColor($fillColor);
$draw->setStrokeWidth(20);
$offset = 220;
$lineJoinStyle = [
\Imagick::LINEJOIN_MITER,
\Imagick::LINEJOIN_ROUND,
\Imagick::LINEJOIN_BEVEL,
];
for ($x = 0; $x < count($lineJoinStyle); $x++) {
$draw->setStrokeLineJoin($lineJoinStyle[$x]);
$points = [
['x' => 40 * 5, 'y' => 10 * 5 + $x * $offset],
['x' => 20 * 5, 'y' => 20 * 5 + $x * $offset],
['x' => 70 * 5, 'y' => 50 * 5 + $x * $offset],
['x' => 40 * 5, 'y' => 10 * 5 + $x * $offset],
];
$draw->polyline($points);
}
$image = new \Imagick();
$image->newImage(500, 700, $backgroundColor);
$image->setImageFormat("png");
$image->drawImage($draw);
header("Content-Type: image/png");
echo $image->getImageBlob();
}
?>
ImagickDraw::setStrokeMiterLimit
Specifies the miter limit
说明
public bool
ImagickDraw::setStrokeMiterLimit ( <span
class="methodparam">int $miterlimit
)
Warning
本函数还未编写文档,仅有参数列表。
Specifies the miter limit. When two line segments meet at a sharp angle and miter joins have been specified for 'lineJoin', it is possible for the miter to extend far beyond the thickness of the line stroking the path. The miterLimit' imposes a limit on the ratio of the miter length to the 'lineWidth'.
参数
miterlimit
the miter limit
返回值
没有返回值。
范例
示例 #1 <span class="function">ImagickDraw::setStrokeMiterLimit
<?php
function setStrokeMiterLimit($strokeColor, $fillColor, $backgroundColor) {
$draw = new \ImagickDraw();
$draw->setStrokeColor($strokeColor);
$draw->setStrokeOpacity(0.6);
$draw->setFillColor($fillColor);
$draw->setStrokeWidth(10);
$yOffset = 100;
$draw->setStrokeLineJoin(\Imagick::LINEJOIN_MITER);
for ($y = 0; $y < 3; $y++) {
$draw->setStrokeMiterLimit(40 * $y);
$points = [
['x' => 22 * 3, 'y' => 15 * 4 + $y * $yOffset],
['x' => 20 * 3, 'y' => 20 * 4 + $y * $yOffset],
['x' => 70 * 5, 'y' => 45 * 4 + $y * $yOffset],
];
$draw->polygon($points);
}
$image = new \Imagick();
$image->newImage(500, 500, $backgroundColor);
$image->setImageFormat("png");
$image->drawImage($draw);
$image->setImageType(\Imagick::IMGTYPE_PALETTE);
$image->setImageCompressionQuality(100);
$image->stripImage();
header("Content-Type: image/png");
echo $image->getImageBlob();
}
?>
ImagickDraw::setStrokeOpacity
Specifies the opacity of stroked object outlines
说明
public bool
ImagickDraw::setStrokeOpacity ( <span
class="methodparam">float
$stroke_opacity
)
Warning
本函数还未编写文档,仅有参数列表。
Specifies the opacity of stroked object outlines.
参数
stroke_opacity
stroke opacity. 1.0 is fully opaque
返回值
没有返回值。
范例
示例 #1 ImagickDraw::setStrokeOpacity
<?php
function setStrokeOpacity($strokeColor, $fillColor, $backgroundColor) {
$draw = new \ImagickDraw();
$draw->setStrokeWidth(1);
$draw->setStrokeColor($strokeColor);
$draw->setFillColor($fillColor);
$draw->setStrokeWidth(10);
$draw->setStrokeOpacity(1);
$draw->line(100, 80, 400, 125);
$draw->rectangle(25, 200, 150, 350);
$draw->setStrokeOpacity(0.5);
$draw->line(100, 100, 400, 145);
$draw->rectangle(200, 200, 325, 350);
$draw->setStrokeOpacity(0.2);
$draw->line(100, 120, 400, 165);
$draw->rectangle(375, 200, 500, 350);
$image = new \Imagick();
$image->newImage(550, 400, $backgroundColor);
$image->setImageFormat("png");
$image->drawImage($draw);
header("Content-Type: image/png");
echo $image->getImageBlob();
}
?>
ImagickDraw::setStrokePatternURL
Sets the pattern used for stroking object outlines
说明
public bool
ImagickDraw::setStrokePatternURL ( <span
class="methodparam">string
$stroke_url
)
Warning
本函数还未编写文档,仅有参数列表。
Sets the pattern used for stroking object outlines.
参数
stroke_url
stroke URL
返回值
imagick.imagickdraw.return.success;
ImagickDraw::setStrokeWidth
Sets the width of the stroke used to draw object outlines
说明
public bool
ImagickDraw::setStrokeWidth ( <span
class="methodparam">float
$stroke_width
)
Warning
本函数还未编写文档,仅有参数列表。
Sets the width of the stroke used to draw object outlines.
参数
stroke_width
stroke width
返回值
没有返回值。
范例
示例 #1 ImagickDraw::setStrokeWidth
<?php
function setStrokeWidth($strokeColor, $fillColor, $backgroundColor) {
$draw = new \ImagickDraw();
$draw->setStrokeWidth(1);
$draw->setStrokeColor($strokeColor);
$draw->setFillColor($fillColor);
$draw->line(100, 100, 400, 145);
$draw->rectangle(100, 200, 225, 350);
$draw->setStrokeWidth(5);
$draw->line(100, 120, 400, 165);
$draw->rectangle(275, 200, 400, 350);
$image = new \Imagick();
$image->newImage(500, 400, $backgroundColor);
$image->setImageFormat("png");
$image->drawImage($draw);
header("Content-Type: image/png");
echo $image->getImageBlob();
}
?>
ImagickDraw::setTextAlignment
Specifies a text alignment
说明
public bool
ImagickDraw::setTextAlignment ( <span
class="methodparam">int $alignment
)
Warning
本函数还未编写文档,仅有参数列表。
Specifies a text alignment to be applied when annotating with text.
参数
alignment
ALIGN_ constant
返回值
没有返回值。
范例
示例 #1 ImagickDraw::setTextAlignment
<?php
function setTextAlignment($strokeColor, $fillColor, $backgroundColor) {
$draw = new \ImagickDraw();
$draw->setStrokeColor($strokeColor);
$draw->setFillColor($fillColor);
$draw->setStrokeWidth(1);
$draw->setFontSize(36);
$draw->setTextAlignment(\Imagick::ALIGN_LEFT);
$draw->annotation(250, 75, "Lorem Ipsum!");
$draw->setTextAlignment(\Imagick::ALIGN_CENTER);
$draw->annotation(250, 150, "Lorem Ipsum!");
$draw->setTextAlignment(\Imagick::ALIGN_RIGHT);
$draw->annotation(250, 225, "Lorem Ipsum!");
$draw->line(250, 0, 250, 500);
$imagick = new \Imagick();
$imagick->newImage(500, 500, $backgroundColor);
$imagick->setImageFormat("png");
$imagick->drawImage($draw);
header("Content-Type: image/png");
echo $imagick->getImageBlob();
}
?>
ImagickDraw::setTextAntialias
Controls whether text is antialiased
说明
public bool
ImagickDraw::setTextAntialias ( <span
class="methodparam">bool $antiAlias
)
Warning
本函数还未编写文档,仅有参数列表。
Controls whether text is antialiased. Text is antialiased by default.
参数
antiAlias
返回值
没有返回值。
范例
示例 #1 ImagickDraw::setTextAntialias
<?php
function setTextAntialias($fillColor, $backgroundColor) {
$draw = new \ImagickDraw();
$draw->setStrokeColor('none');
$draw->setFillColor($fillColor);
$draw->setStrokeWidth(1);
$draw->setFontSize(32);
$draw->setTextAntialias(false);
$draw->annotation(5, 30, "Lorem Ipsum!");
$draw->setTextAntialias(true);
$draw->annotation(5, 65, "Lorem Ipsum!");
$imagick = new \Imagick();
$imagick->newImage(220, 80, $backgroundColor);
$imagick->setImageFormat("png");
$imagick->drawImage($draw);
//Scale the image so that people can see the aliasing.
$imagick->scaleImage(220 * 6, 80 * 6);
$imagick->cropImage(640, 480, 0, 0);
header("Content-Type: image/png");
echo $imagick->getImageBlob();
}
?>
ImagickDraw::setTextDecoration
Specifies a decoration
说明
public bool
ImagickDraw::setTextDecoration ( <span
class="methodparam">int $decoration
)
Warning
本函数还未编写文档,仅有参数列表。
Specifies a decoration to be applied when annotating with text.
参数
decoration
DECORATION_ constant
返回值
没有返回值。
范例
示例 #1 <span class="function">ImagickDraw::setTextDecoration
<?php
function setTextDecoration($strokeColor, $fillColor, $backgroundColor, $textDecoration) {
$draw = new \ImagickDraw();
$draw->setStrokeColor($strokeColor);
$draw->setFillColor($fillColor);
$draw->setStrokeWidth(2);
$draw->setFontSize(72);
$draw->setTextDecoration($textDecoration);
$draw->annotation(50, 75, "Lorem Ipsum!");
$imagick = new \Imagick();
$imagick->newImage(500, 200, $backgroundColor);
$imagick->setImageFormat("png");
$imagick->drawImage($draw);
header("Content-Type: image/png");
echo $imagick->getImageBlob();
}
?>
ImagickDraw::setTextEncoding
Specifies the text code set
说明
public bool
ImagickDraw::setTextEncoding ( <span
class="methodparam">string $encoding
)
Warning
本函数还未编写文档,仅有参数列表。
Specifies the code set to use for text annotations. The only character encoding which may be specified at this time is "UTF-8" for representing Unicode as a sequence of bytes. Specify an empty string to set text encoding to the system's default. Successful text annotation using Unicode may require fonts designed to support Unicode.
参数
encoding
the encoding name
返回值
没有返回值。
ImagickDraw::setTextInterlineSpacing
Description
说明
public bool
ImagickDraw::setTextInterlineSpacing (
float
$spacing
)
Sets the text interline spacing.
Warning
本函数还未编写文档,仅有参数列表。
参数
spacing
返回值
成功时返回 true
。
ImagickDraw::setTextInterwordSpacing
Description
说明
public bool
ImagickDraw::setTextInterwordSpacing (
float
$spacing
)
Sets the text interword spacing.
参数
spacing
返回值
成功时返回 true
。
ImagickDraw::setTextKerning
Description
说明
public bool
ImagickDraw::setTextKerning ( <span
class="methodparam">float $kerning
)
Sets the text kerning
Warning
本函数还未编写文档,仅有参数列表。
参数
kerning
返回值
成功时返回 true
。
ImagickDraw::setTextUnderColor
Specifies the color of a background rectangle
说明
public bool
ImagickDraw::setTextUnderColor ( <span
class="methodparam">ImagickPixel
$under_color
)
Warning
本函数还未编写文档,仅有参数列表。
Specifies the color of a background rectangle to place under text annotations.
参数
under_color
the under color
返回值
没有返回值。
范例
示例 #1 <span class="function">ImagickDraw::setTextUnderColor
<?php
function setTextUnderColor($strokeColor, $fillColor, $backgroundColor, $textUnderColor) {
$draw = new \ImagickDraw();
$draw->setStrokeColor($strokeColor);
$draw->setFillColor($fillColor);
$draw->setStrokeWidth(2);
$draw->setFontSize(72);
$draw->annotation(50, 75, "Lorem Ipsum!");
$draw->setTextUnderColor($textUnderColor);
$draw->annotation(50, 175, "Lorem Ipsum!");
$imagick = new \Imagick();
$imagick->newImage(500, 500, $backgroundColor);
$imagick->setImageFormat("png");
$imagick->drawImage($draw);
header("Content-Type: image/png");
echo $imagick->getImageBlob();
}
?>
ImagickDraw::setVectorGraphics
Sets the vector graphics
说明
public bool
ImagickDraw::setVectorGraphics ( <span
class="methodparam">string $xml
)
Warning
本函数还未编写文档,仅有参数列表。
Sets the vector graphics associated with the specified ImagickDraw object. Use this method with ImagickDraw::getVectorGraphics() as a method to persist the vector graphics state.
参数
xml
xml containing the vector graphics
返回值
成功时返回 true
, 或者在失败时返回 false
。
范例
示例 #1 <span class="function">ImagickDraw::setVectorGraphics
<?php
function setVectorGraphics() {
//Setup a draw object with some drawing in it.
$draw = new \ImagickDraw();
$draw->setFillColor("red");
$draw->circle(20, 20, 50, 50);
$draw->setFillColor("blue");
$draw->circle(50, 70, 50, 50);
$draw->rectangle(50, 120, 80, 150);
//Get the drawing as a string
$SVG = $draw->getVectorGraphics();
//$svg is a string, and could be saved anywhere a string can be saved
//Use the saved drawing to generate a new draw object
$draw2 = new \ImagickDraw();
//Apparently the SVG text is missing the root element.
$draw2->setVectorGraphics("<root>".$SVG."</root>");
$imagick = new \Imagick();
$imagick->newImage(200, 200, 'white');
$imagick->setImageFormat("png");
$imagick->drawImage($draw2);
header("Content-Type: image/png");
echo $imagick->getImageBlob();
}
?>
ImagickDraw::setViewbox
Sets the overall canvas size
说明
public bool
ImagickDraw::setViewbox ( <span
class="methodparam">int $x1
, <span
class="methodparam">int $y1
, <span
class="methodparam">int $x2
, <span
class="methodparam">int $y2
)
Warning
本函数还未编写文档,仅有参数列表。
Sets the overall canvas size to be recorded with the drawing vector data. Usually this will be specified using the same size as the canvas image. When the vector data is saved to SVG or MVG formats, the viewbox is use to specify the size of the canvas image that a viewer will render the vector data on.
参数
x1
left x coordinate
y1
left y coordinate
x2
right x coordinate
y2
right y coordinate
返回值
没有返回值。
范例
示例 #1 ImagickDraw::setViewBox
<?php
function setViewBox($strokeColor, $fillColor, $backgroundColor) {
$draw = new \ImagickDraw();
$draw->setStrokeColor($strokeColor);
$draw->setFillColor($fillColor);
$draw->setStrokeWidth(2);
$draw->setFontSize(72);
/*
Sets the overall canvas size to be recorded with the drawing vector data. Usually this will be specified using the same size as the canvas image. When the vector data is saved to SVG or MVG formats, the viewbox is use to specify the size of the canvas image that a viewer will render the vector data on.
*/
$draw->circle(250, 250, 250, 0);
$draw->setviewbox(0, 0, 200, 200);
$draw->circle(125, 250, 250, 250);
$draw->translate(250, 125);
$draw->circle(0, 0, 125, 0);
$imagick = new \Imagick();
$imagick->newImage(500, 500, $backgroundColor);
$imagick->setImageFormat("png");
$imagick->drawImage($draw);
header("Content-Type: image/png");
echo $imagick->getImageBlob();
}
?>
ImagickDraw::skewX
Skews the current coordinate system in the horizontal direction
说明
public bool
ImagickDraw::skewX ( <span
class="methodparam">float $degrees
)
Warning
本函数还未编写文档,仅有参数列表。
Skews the current coordinate system in the horizontal direction.
参数
degrees
degrees to skew
返回值
没有返回值。
范例
示例 #1 ImagickDraw::skewX
<?php
function skewX($strokeColor, $fillColor, $backgroundColor, $fillModifiedColor,
$startX, $startY, $endX, $endY, $skew) {
$draw = new \ImagickDraw();
$draw->setStrokeColor($strokeColor);
$draw->setStrokeWidth(2);
$draw->setFillColor($fillColor);
$draw->rectangle($startX, $startY, $endX, $endY);
$draw->setFillColor($fillModifiedColor);
$draw->skewX($skew);
$draw->rectangle($startX, $startY, $endX, $endY);
$image = new \Imagick();
$image->newImage(500, 500, $backgroundColor);
$image->setImageFormat("png");
$image->drawImage($draw);
header("Content-Type: image/png");
echo $image->getImageBlob();
}
?>
ImagickDraw::skewY
Skews the current coordinate system in the vertical direction
说明
public bool
ImagickDraw::skewY ( <span
class="methodparam">float $degrees
)
Warning
本函数还未编写文档,仅有参数列表。
Skews the current coordinate system in the vertical direction.
参数
degrees
degrees to skew
返回值
没有返回值。
范例
示例 #1 ImagickDraw::skewY
<?php
function skewY($strokeColor, $fillColor, $backgroundColor, $fillModifiedColor,
$startX, $startY, $endX, $endY, $skew) {
$draw = new \ImagickDraw();
$draw->setStrokeColor($strokeColor);
$draw->setStrokeWidth(2);
$draw->setFillColor($fillColor);
$draw->rectangle($startX, $startY, $endX, $endY);
$draw->setFillColor($fillModifiedColor);
$draw->skewY($skew);
$draw->rectangle($startX, $startY, $endX, $endY);
$image = new \Imagick();
$image->newImage(500, 500, $backgroundColor);
$image->setImageFormat("png");
$image->drawImage($draw);
header("Content-Type: image/png");
echo $image->getImageBlob();
}
?>
ImagickDraw::translate
Applies a translation to the current coordinate system
说明
public bool
ImagickDraw::translate ( <span
class="methodparam">float $x
, <span
class="methodparam">float $y
)
Warning
本函数还未编写文档,仅有参数列表。
Applies a translation to the current coordinate system which moves the coordinate system origin to the specified coordinate.
参数
x
horizontal translation
y
vertical translation
返回值
没有返回值。
范例
示例 #1 ImagickDraw::translate
<?php
function translate($strokeColor, $fillColor, $backgroundColor, $fillModifiedColor,
$startX, $startY, $endX, $endY, $translateX, $translateY) {
$draw = new \ImagickDraw();
$draw->setStrokeColor($strokeColor);
$draw->setFillColor($fillColor);
$draw->rectangle($startX, $startY, $endX, $endY);
$draw->setFillColor($fillModifiedColor);
$draw->translate($translateX, $translateY);
$draw->rectangle($startX, $startY, $endX, $endY);
$image = new \Imagick();
$image->newImage(500, 500, $backgroundColor);
$image->setImageFormat("png");
$image->drawImage($draw);
header("Content-Type: image/png");
echo $image->getImageBlob();
}
?>
类摘要
ImagickPixel
class ImagickPixel {
public bool clear ( <span class="methodparam">void )
public <span
class="methodname">__construct ([ <span
class="methodparam">string $color
]
)
public bool destroy ( <span class="methodparam">void )
public array
getColor ([ <span
class="methodparam">int $normalized
<span
class="initializer"> = 0 ] )
public string getColorAsString ( <span class="methodparam">void )
public int <span class="methodname">getColorCount ( <span class="methodparam">void )
public array getColorQuantum ( <span class="methodparam">void )
public float
getColorValue ( <span
class="methodparam">int $color
)
public <span
class="type">intfloat <span
class="methodname">getColorValueQuantum ( <span
class="methodparam">int $color
)
public array getHSL ( <span class="methodparam">void )
public int <span class="methodname">getIndex ( <span class="methodparam">void )
public bool
isPixelSimilar ( <span
class="methodparam">ImagickPixel
$color
, <span
class="type">float $fuzz
)
public bool
isPixelSimilarQuantum ( <span
class="methodparam">string $color
[,
string
$fuzz
] )
public bool
isSimilar ( <span
class="methodparam">ImagickPixel
$color
, <span
class="type">float $fuzz
)
public bool
setColor ( <span
class="methodparam">string $color
)
public bool
setcolorcount ( <span
class="methodparam">int $colorCount
)
public bool
setColorValue ( <span
class="methodparam">int $color
,
float
$value
)
public bool
setColorValueQuantum ( <span
class="methodparam">int $color
,
<span
class="type">intfloat
$value
)
public bool
setHSL ( <span
class="type">float $hue
, <span
class="methodparam">float $saturation
, float
$luminosity
)
public bool
setIndex ( <span
class="methodparam">int $index
)
}
ImagickPixel::clear
Clears resources associated with this object
说明
public bool ImagickPixel::clear ( <span class="methodparam">void )
Warning
本函数还未编写文档,仅有参数列表。
Clears the ImagickPixel object, leaving it in a fresh state. This also unsets any color associated with the object.
返回值
成功时返回 true
。
ImagickPixel::__construct
The ImagickPixel constructor
说明
public <span
class="methodname">ImagickPixel::__construct ([ <span
class="methodparam">string $color
]
)
Warning
本函数还未编写文档,仅有参数列表。
Constructs an ImagickPixel object. If a color is specified, the object is constructed and then initialised with that color before being returned.
参数
color
The optional color string to use as the initial value of this object.
返回值
Returns an ImagickPixel object on success, throwing ImagickPixelException on failure.
范例
示例 #1 ImagickPixel::construct
<?php
function construct() {
$columns = 4;
$exampleColors = array(
"rgba(100%, 0%, 0%, 0.5)",
"hsb(33.3333%, 100%, 75%)", // medium green
"hsl(120, 255, 191.25)", //medium green
"graya(50%, 0.5)", // semi-transparent mid gray
"LightCoral", "none", //"cmyk(0.9, 0.48, 0.83, 0.50)",
"#f00", // #rgb
"#ff0000", // #rrggbb
"#ff0000ff", // #rrggbbaa
"#ffff00000000", // #rrrrggggbbbb
"#ffff00000000ffff", // #rrrrggggbbbbaaaa
"rgb(255, 0, 0)", // an integer in the range 0—255 for each component
"rgb(100.0%, 0.0%, 0.0%)", // a float in the range 0—100% for each component
"rgb(255, 0, 0)", // range 0 - 255
"rgba(255, 0, 0, 1.0)", // the same, with an explicit alpha value
"rgb(100%, 0%, 0%)", // range 0.0% - 100.0%
"rgba(100%, 0%, 0%, 1.0)", // the same, with an explicit alpha value
);
$draw = new \ImagickDraw();
$count = 0;
$black = new \ImagickPixel('rgb(0, 0, 0)');
foreach ($exampleColors as $exampleColor) {
$color = new \ImagickPixel($exampleColor);
$draw->setstrokewidth(1.0);
$draw->setStrokeColor($black);
$draw->setFillColor($color);
$offsetX = ($count % $columns) * 50 + 5;
$offsetY = intval($count / $columns) * 50 + 5;
$draw->rectangle(0 + $offsetX, 0 + $offsetY, 40 + $offsetX, 40 + $offsetY);
$count++;
}
$image = new \Imagick();
$image->newImage(350, 350, "blue");
$image->setImageFormat("png");
$image->drawImage($draw);
header("Content-Type: image/png");
echo $image->getImageBlob();
}
?>
ImagickPixel::destroy
Deallocates resources associated with this object
说明
public bool ImagickPixel::destroy ( <span class="methodparam">void )
Warning
本函数还未编写文档,仅有参数列表。
Deallocates any resources used by the ImagickPixel object, and unsets any associated color. The object should not be used after the destroy function has been called.
返回值
成功时返回 true
。
ImagickPixel::getColor
Returns the color
说明
public array
ImagickPixel::getColor ([ <span
class="methodparam">int $normalized
<span
class="initializer"> = 0 ] )
Returns the color described by the ImagickPixel object, as an array. If the color has an opacity channel set, this is provided as a fourth value in the list.
参数
normalized
Normalize the color values. Possible values are 0, 1 or 2.
normalized |
Description |
---|---|
0 |
The RGB values are returned as ints in the range 0 to 255 (inclusive.) The alpha value is returned as int and is either 0 or 1. |
1 |
The RGBA values are returned as floats in the range 0 to 1 (inclusive.) |
2 |
The RGBA values are returned as ints in the range 0 to 255 (inclusive.) |
返回值
An array of channel values. Throws ImagickPixelException on error.
范例
示例 #1 Basic Imagick::getColor usage
<?php
//Create an ImagickPixel with the predefined color 'brown'
$color = new ImagickPixel('brown');
//Set the color to have an alpha of 25%
$color->setColorValue(Imagick::COLOR_ALPHA, 64 / 256.0);
$colorInfo = $color->getColor();
echo "Standard values".PHP_EOL;
print_r($colorInfo);
$colorInfo = $color->getColor(1);
echo "Normalized values:".PHP_EOL;
print_r($colorInfo);
?>
以上例程会输出:
Standard values
Array
(
[r] => 165
[g] => 42
[b] => 42
[a] => 0
)
Normalized values:
Array
(
[r] => 0.64705882352941
[g] => 0.16470588235294
[b] => 0.16470588235294
[a] => 0.25000381475547
)
ImagickPixel::getColorAsString
Returns the color as a string
说明
public string ImagickPixel::getColorAsString ( <span class="methodparam">void )
Returns the color of the ImagickPixel object as a string.
参数
此函数没有参数。
返回值
Returns the color of the ImagickPixel object as a string.
范例
示例 #1 Basic Imagick::getColorAsString usage
<?php
//Create an ImagickPixel with the predefined color 'brown'
$color = new ImagickPixel('brown');
$color->setColorValue(Imagick::COLOR_ALPHA, 64 / 256.0);
$colorInfo = $color->getColorAsString();
print_r($colorInfo);
?>
以上例程会输出:
rgb(165,42,42)
注释
Note: Alpha not returned
This function does not return the alpha value of the color in the string.
ImagickPixel::getColorCount
Returns the color count associated with this color
说明
public int <span class="methodname">ImagickPixel::getColorCount ( <span class="methodparam">void )
Returns the color count associated with this color.
The color count is the number of pixels in the image that have the same color as this ImagickPixel.
ImagickPixel::getColorCount appears to only work for ImagickPixel objects created through Imagick::getImageHistogram()
返回值
Returns the color count as an integer on success, throws ImagickPixelException on failure.
范例
示例 #1 ImagickPixel getColorCount
<?php
$imagick = new \Imagick();
$imagick->newPseudoImage(640, 480, "magick:logo");
$histogramElements = $imagick->getImageHistogram();
$lastColor = array_pop($histogramElements);
echo "Last pixel color count is: ".$lastColor->getColorCount();
?>
The output for this will be similar to:
Last pixel color count is: 256244
ImagickPixel::getColorQuantum
Description
说明
public array ImagickPixel::getColorQuantum ( <span class="methodparam">void )
Returns the color of the pixel in an array as Quantum values. If ImageMagick was compiled as HDRI these will be floats, otherwise they will be integers.
Warning
本函数还未编写文档,仅有参数列表。
参数
此函数没有参数。
返回值
Returns an array with keys "r", "g", "b", "a".
ImagickPixel::getColorValue
Gets the normalized value of the provided color channel
说明
public float
ImagickPixel::getColorValue ( <span
class="methodparam">int $color
)
Retrieves the value of the color channel specified, as a floating-point number between 0 and 1.
参数
color
The color to get the value of, specified as one of the Imagick color
constants. This can be one of the RGB colors, CMYK colors, alpha and
opacity e.g (Imagick::COLOR_BLUE, Imagick::COLOR_MAGENTA).
返回值
The value of the channel, as a normalized floating-point number, throwing ImagickPixelException on error.
范例
示例 #1 Basic Imagick::getColorValue usage
<?php
$color = new ImagickPixel('rgba(90%, 20%, 20%, 0.75)');
echo "Alpha value is ".$color->getColorValue(Imagick::COLOR_ALPHA).PHP_EOL;
echo "".PHP_EOL;
echo "Red value is ".$color->getColorValue(Imagick::COLOR_RED).PHP_EOL;
echo "Green value is ".$color->getColorValue(Imagick::COLOR_GREEN).PHP_EOL;
echo "Blue value is ".$color->getColorValue(Imagick::COLOR_BLUE).PHP_EOL;
echo "".PHP_EOL;
echo "Cyan value is ".$color->getColorValue(Imagick::COLOR_CYAN).PHP_EOL;
echo "Magenta value is ".$color->getColorValue(Imagick::COLOR_MAGENTA).PHP_EOL;
echo "Yellow value is ".$color->getColorValue(Imagick::COLOR_YELLOW).PHP_EOL;
echo "Black value is ".$color->getColorValue(Imagick::COLOR_BLACK).PHP_EOL;
?>
以上例程会输出:
Alpha value is 0.74999618524453
Red value is 0.90000762951095
Green value is 0.2
Blue value is 0.2
Cyan value is 0.90000762951095
Magenta value is 0.2
Yellow value is 0.2
Black value is 0
ImagickPixel::getColorValueQuantum
Description
说明
public <span
class="type">intfloat <span
class="methodname">ImagickPixel::getColorValueQuantum ( <span
class="methodparam">int $color
)
Gets the quantum value of a color in the ImagickPixel. Return value is a float if ImageMagick was compiled with HDRI, otherwise an integer.
参数
此函数没有参数。
返回值
The quantum value of the color element. Float if ImageMagick was compiled with HDRI, otherwise an int.
范例
示例 #1 <span class="function">ImagickPixel::getColorValueQuantum
<?php
$color = new \ImagickPixel('rgb(128, 5, 255)');
$colorRed = $color->getColorValueQuantum(\Imagick::COLOR_RED);
$colorGreen = $color->getColorValueQuantum(\Imagick::COLOR_GREEN);
$colorBlue = $color->getColorValueQuantum(\Imagick::COLOR_BLUE);
$colorAlpha = $color->getColorValueQuantum(\Imagick::COLOR_ALPHA);
printf(
"Red: %s Green: %s Blue %s Alpha: %s",
$colorRed,
$colorGreen,
$colorBlue,
$colorAlpha
);
?>
ImagickPixel::getHSL
Returns the normalized HSL color of the ImagickPixel object
说明
public array ImagickPixel::getHSL ( <span class="methodparam">void )
Returns the normalized HSL color described by the ImagickPixel object, with each of the three values as floating point numbers between 0.0 and 1.0.
返回值
Returns the HSL value in an array with the keys "hue", "saturation", and "luminosity". Throws ImagickPixelException on failure.
范例
示例 #1 Basic Imagick::getHSL example
<?php
$color = new ImagickPixel('rgb(90%, 10%, 10%)');
$colorInfo = $color->getHSL();
print_r($colorInfo);
?>
以上例程会输出:
Array
(
[hue] => 0
[saturation] => 0.80001220740379
[luminosity] => 0.50000762951095
)
注释
Note:
Available with ImageMagick library version 6.2.9 and higher.
ImagickPixel::getIndex
Description
说明
public int <span class="methodname">ImagickPixel::getIndex ( <span class="methodparam">void )
Gets the colormap index of the pixel wand.
参数
此函数没有参数。
返回值
ImagickPixel::isPixelSimilar
Check the distance between this color and another
说明
public bool
ImagickPixel::isPixelSimilar ( <span
class="methodparam">ImagickPixel
$color
, <span
class="type">float $fuzz
)
Checks the distance between the color described by this ImagickPixel object and that of the provided object, by plotting their RGB values on the color cube. If the distance between the two points is less than the fuzz value given, the colors are similar. This method replaces ImagickPixel::isSimilar() and correctly normalises the fuzz value to ImageMagick QuantumRange.
参数
color
The ImagickPixel object to compare this object against.
fuzz
The maximum distance within which to consider these colors as similar.
The theoretical maximum for this value is the square root of three
(1.732).
返回值
成功时返回 true
。
ImagickPixel::isPixelSimilarQuantum
Description
说明
public bool
ImagickPixel::isPixelSimilarQuantum (
string
$color
[, <span
class="type">string $fuzz
] )
Returns true if the distance between two colors is less than the specified distance. The fuzz value should be in the range 0-QuantumRange. The maximum value represents the longest possible distance in the colorspace. e.g. from RGB(0, 0, 0) to RGB(255, 255, 255) for the RGB colorspace
参数
color
fuzz
返回值
ImagickPixel::isSimilar
Check the distance between this color and another
说明
public bool
ImagickPixel::isSimilar ( <span
class="methodparam">ImagickPixel
$color
, <span
class="type">float $fuzz
)
Warning
本函数还未编写文档,仅有参数列表。
Checks the distance between the color described by this ImagickPixel object and that of the provided object, by plotting their RGB values on the color cube. If the distance between the two points is less than the fuzz value given, the colors are similar. Deprecated in favour of ImagickPixel::isPixelSimilar().
参数
color
The ImagickPixel object to compare this object against.
fuzz
The maximum distance within which to consider these colors as similar.
The theoretical maximum for this value is the square root of three
(1.732).
返回值
成功时返回 true
。
范例
示例 #1 ImagickPixel::isSimilar
<?php
// The tests below are written with the maximum distance expressed as 255
// so we need to scale them by the square root of 3 - the diagonal length
// of a unit cube.
$root3 = 1.732050807568877;
$tests = array(
['rgb(245, 0, 0)', 'rgb(255, 0, 0)', 9 / $root3, false,],
['rgb(245, 0, 0)', 'rgb(255, 0, 0)', 10 / $root3, true,],
['rgb(0, 0, 0)', 'rgb(7, 7, 0)', 9 / $root3, false,],
['rgb(0, 0, 0)', 'rgb(7, 7, 0)', 10 / $root3, true,],
['rgba(0, 0, 0, 1)', 'rgba(7, 7, 0, 1)', 9 / $root3, false,],
['rgba(0, 0, 0, 1)', 'rgba(7, 7, 0, 1)', 10 / $root3, true,],
['rgb(128, 128, 128)', 'rgb(128, 128, 120)', 7 / $root3, false,],
['rgb(128, 128, 128)', 'rgb(128, 128, 120)', 8 / $root3, true,],
['rgb(0, 0, 0)', 'rgb(255, 255, 255)', 254.9, false,],
['rgb(0, 0, 0)', 'rgb(255, 255, 255)', 255, true,],
['rgb(255, 0, 0)', 'rgb(0, 255, 255)', 254.9, false,],
['rgb(255, 0, 0)', 'rgb(0, 255, 255)', 255, true,],
['black', 'rgba(0, 0, 0)', 0.0, true],
['black', 'rgba(10, 0, 0, 1.0)', 10.0 / $root3, true],);
$output = "<table width='100%' class='infoTable'><thead>
<tr>
<th>
Color 1
</th>
<th>
Color 2
</th>
<th>
Test distance * 255
</th>
<th>
Is within distance
</th>
</tr>
</thead>";
$output .= "<tbody>";
foreach ($tests as $testInfo) {
$color1 = $testInfo[0];
$color2 = $testInfo[1];
$distance = $testInfo[2];
$expectation = $testInfo[3];
$testDistance = ($distance / 255.0);
$color1Pixel = new \ImagickPixel($color1);
$color2Pixel = new \ImagickPixel($color2);
$isSimilar = $color1Pixel->isPixelSimilar($color2Pixel, $testDistance);
if ($isSimilar !== $expectation) {
echo "Test distance failed. Color [$color1] compared to color [$color2] is not within distance $testDistance FAILED.".NL;
}
$layout = "<tr>
<td>%s</td>
<td>%s</td>
<td>%s</td>
<td style='text-align: center;'>%s</td>
</tr>";
$output .= sprintf(
$layout,
$color1,
$color2,
$distance,
$isSimilar ? 'yes' : 'no'
);
}
$output .= "</tbody></table>";
return $output;
?>
ImagickPixel::setColor
Sets the color
说明
public bool
ImagickPixel::setColor ( <span
class="methodparam">string $color
)
Warning
本函数还未编写文档,仅有参数列表。
Sets the color described by the ImagickPixel object, with a string (e.g. "blue", "#0000ff", "rgb(0,0,255)", "cmyk(100,100,100,10)", etc.).
参数
color
The color definition to use in order to initialise the ImagickPixel
object.
返回值
Returns true
if the specified color was set, false
otherwise.
范例
示例 #1 ImagickPixel::setColor
<?php
function setColor() {
$draw = new \ImagickDraw();
$strokeColor = new \ImagickPixel('green');
$fillColor = new \ImagickPixel();
$fillColor->setColor('rgba(100%, 75%, 0%, 1.0)');
$draw->setstrokewidth(3.0);
$draw->setStrokeColor($strokeColor);
$draw->setFillColor($fillColor);
$draw->rectangle(200, 200, 300, 300);
$image = new \Imagick();
$image->newImage(500, 500, "SteelBlue2");
$image->setImageFormat("png");
$image->drawImage($draw);
header("Content-Type: image/png");
echo $image->getImageBlob();
}
?>
ImagickPixel::setColorCount
Description
说明
public bool
ImagickPixel::setcolorcount ( <span
class="methodparam">int $colorCount
)
Sets the color count associated with this color.
参数
colorCount
返回值
成功时返回 true
。
ImagickPixel::setColorValue
Sets the normalized value of one of the channels
说明
public bool
ImagickPixel::setColorValue ( <span
class="methodparam">int $color
,
float
$value
)
Sets the value of the specified channel of this object to the provided value, which should be between 0 and 1. This function can be used to provide an opacity channel to an ImagickPixel object.
参数
color
One of the Imagick color constants e.g. \Imagick::COLOR_GREEN or
\Imagick::COLOR_ALPHA.
value
The value to set this channel to, ranging from 0 to 1.
返回值
成功时返回 true
。
范例
示例 #1 Basic Imagick::setColorValue usage
<?php
$color = new \ImagickPixel('firebrick');
$color->setColorValue(Imagick::COLOR_ALPHA, 0.5);
print_r($color->getcolor(true));
?>
以上例程会输出:
Array
(
[r] => 0.69803921568627
[g] => 0.13333333333333
[b] => 0.13333333333333
[a] => 0.50000762951095
)
ImagickPixel::setColorValueQuantum
Description
说明
public bool
ImagickPixel::setColorValueQuantum (
int $color
, <span
class="type">intfloat
$value
)
Sets the quantum value of a color element of the ImagickPixel.
Warning
本函数还未编写文档,仅有参数列表。
参数
color
Which color element to set e.g. \Imagick::COLOR_GREEN.
value
The quantum value to set the color element to. This should be a float if
ImageMagick was compiled with HDRI otherwise an int in the range 0 to
Imagick::getQuantum().
返回值
成功时返回 true
。
范例
示例 #1 <span class="function">ImagickPixel::setColorValueQuantum
<?php
function setColorValueQuantum() {
$image = new \Imagick();
$quantumRange = $image->getQuantumRange();
$draw = new \ImagickDraw();
$color = new \ImagickPixel('blue');
$color->setcolorValueQuantum(\Imagick::COLOR_RED, 128 * $quantumRange['quantumRangeLong'] / 256);
$draw->setstrokewidth(1.0);
$draw->setStrokeColor($color);
$draw->setFillColor($color);
$draw->rectangle(200, 200, 300, 300);
$image->newImage(500, 500, "SteelBlue2");
$image->setImageFormat("png");
$image->drawImage($draw);
header("Content-Type: image/png");
echo $image->getImageBlob();
}
?>
ImagickPixel::setHSL
Sets the normalized HSL color
说明
public bool
ImagickPixel::setHSL ( <span
class="methodparam">float $hue
,
float
$saturation
, <span
class="type">float $luminosity
)
Sets the color described by the ImagickPixel object using normalized values for hue, saturation and luminosity.
参数
hue
The normalized value for hue, described as a fractional arc (between 0
and 1) of the hue circle, where the zero value is red.
saturation
The normalized value for saturation, with 1 as full saturation.
luminosity
The normalized value for luminosity, on a scale from black at 0 to white
at 1, with the full HS value at 0.5 luminosity.
返回值
成功时返回 true
。
范例
示例 #1 Use ImagickPixel::setHSL to modify a color
<?php
//Create an almost pure red color
$color = new ImagickPixel('rgb(90%, 10%, 10%)');
//Get it's HSL values
$colorInfo = $color->getHSL();
//Rotate the hue by 180 degrees
$newHue = $colorInfo['hue'] + 0.5;
if ($newHue > 1) {
$newHue = $newHue - 1;
}
//Set the ImagickPixel to the new color
$colorInfo = $color->setHSL($newHue, $colorInfo['saturation'], $colorInfo['luminosity']);
//Check that the new color is blue/green
$colorInfo = $color->getcolor();
print_r($colorInfo);
?>
以上例程会输出:
Array
(
[r] => 26
[g] => 230
[b] => 230
[a] => 255
)
注释
Note:
Available with ImageMagick library version 6.2.9 and higher.
ImagickPixel::setIndex
Description
说明
public bool
ImagickPixel::setIndex ( <span
class="methodparam">int $index
)
Sets the colormap index of the pixel wand.
参数
index
返回值
成功时返回 true
。
类摘要
ImagickPixelIterator
class ImagickPixelIterator {
public bool clear ( <span class="methodparam">void )
public <span
class="methodname">__construct ( <span
class="methodparam">Imagick $wand
)
public bool destroy ( <span class="methodparam">void )
public array getCurrentIteratorRow ( <span class="methodparam">void )
public int <span class="methodname">getIteratorRow ( <span class="methodparam">void )
public array getNextIteratorRow ( <span class="methodparam">void )
public array getPreviousIteratorRow ( <span class="methodparam">void )
public bool
newPixelIterator ( <span
class="methodparam">Imagick $wand
)
public bool
newPixelRegionIterator ( <span
class="methodparam">Imagick $wand
,
int $x
,
int $y
,
int
$columns
, <span
class="type">int $rows
)
public bool resetIterator ( <span class="methodparam">void )
public bool setIteratorFirstRow ( <span class="methodparam">void )
public bool setIteratorLastRow ( <span class="methodparam">void )
public bool
setIteratorRow ( <span
class="methodparam">int $row
)
public bool syncIterator ( <span class="methodparam">void )
}
ImagickPixelIterator::clear
Clear resources associated with a PixelIterator
说明
public bool ImagickPixelIterator::clear ( <span class="methodparam">void )
Warning
本函数还未编写文档,仅有参数列表。
Clear resources associated with a PixelIterator.
返回值
成功时返回 true
。
范例
示例 #1 ImagickPixelIterator::clear
<?php
function clear($imagePath) {
$imagick = new \Imagick(realpath($imagePath));
$imageIterator = $imagick->getPixelRegionIterator(100, 100, 250, 200);
/* Loop through pixel rows */
foreach ($imageIterator as $pixels) {
/** @var $pixel \ImagickPixel */
/* Loop through the pixels in the row (columns) */
foreach ($pixels as $column => $pixel) {
if ($column % 2) {
/* Paint every second pixel black*/
$pixel->setColor("rgba(0, 0, 0, 0)");
}
}
/* Sync the iterator, this is important to do on each iteration */
$imageIterator->syncIterator();
}
$imageIterator->clear();
header("Content-Type: image/jpg");
echo $imagick;
}
?>
ImagickPixelIterator::__construct
The ImagickPixelIterator constructor
说明
public <span
class="methodname">ImagickPixelIterator::__construct ( <span
class="methodparam">Imagick $wand
)
Warning
本函数还未编写文档,仅有参数列表。
The ImagickPixelIterator constructor
返回值
成功时返回 true
。
范例
示例 #1 <span class="function">ImagickPixelIterator::construct
<?php
function construct($imagePath) {
$imagick = new \Imagick(realpath($imagePath));
$imageIterator = new \ImagickPixelIterator($imagick);
/* Loop through pixel rows */
foreach ($imageIterator as $pixels) {
/* Loop through the pixels in the row (columns) */
foreach ($pixels as $column => $pixel) {
/** @var $pixel \ImagickPixel */
if ($column % 2) {
/* Paint every second pixel black*/
$pixel->setColor("rgba(0, 0, 0, 0)");
}
}
/* Sync the iterator, this is important to do on each iteration */
$imageIterator->syncIterator();
}
header("Content-Type: image/jpg");
echo $imagick;
}
?>
ImagickPixelIterator::destroy
Deallocates resources associated with a PixelIterator
说明
public bool ImagickPixelIterator::destroy ( <span class="methodparam">void )
Warning
本函数还未编写文档,仅有参数列表。
Deallocates resources associated with a PixelIterator.
返回值
成功时返回 true
。
ImagickPixelIterator::getCurrentIteratorRow
Returns the current row of ImagickPixel objects
说明
public array <span class="methodname">ImagickPixelIterator::getCurrentIteratorRow ( void )
Warning
本函数还未编写文档,仅有参数列表。
Returns the current row as an array of ImagickPixel objects from the pixel iterator.
返回值
Returns a row as an array of ImagickPixel objects that can themselves be iterated.
ImagickPixelIterator::getIteratorRow
Returns the current pixel iterator row
说明
public int <span class="methodname">ImagickPixelIterator::getIteratorRow ( <span class="methodparam">void )
Warning
本函数还未编写文档,仅有参数列表。
Returns the current pixel iterator row.
返回值
Returns the integer offset of the row, throwing ImagickPixelIteratorException on error.
ImagickPixelIterator::getNextIteratorRow
Returns the next row of the pixel iterator
说明
public array ImagickPixelIterator::getNextIteratorRow ( void )
Warning
本函数还未编写文档,仅有参数列表。
Returns the next row as an array of pixel wands from the pixel iterator.
返回值
Returns the next row as an array of ImagickPixel objects, throwing ImagickPixelIteratorException on error.
范例
示例 #1 <span class="function">ImagickPixelIterator::getNextIteratorRow
<?php
function getNextIteratorRow($imagePath) {
$imagick = new \Imagick(realpath($imagePath));
$imageIterator = $imagick->getPixelIterator();
$count = 0;
while ($pixels = $imageIterator->getNextIteratorRow()) {
if (($count % 3) == 0) {
/* Loop through the pixels in the row (columns) */
foreach ($pixels as $column => $pixel) {
/** @var $pixel \ImagickPixel */
if ($column % 2) {
/* Paint every second pixel black*/
$pixel->setColor("rgba(0, 0, 0, 0)");
}
}
/* Sync the iterator, this is important to do on each iteration */
$imageIterator->syncIterator();
}
$count += 1;
}
header("Content-Type: image/jpg");
echo $imagick;
}
?>
ImagickPixelIterator::getPreviousIteratorRow
Returns the previous row
说明
public array <span class="methodname">ImagickPixelIterator::getPreviousIteratorRow ( void )
Warning
本函数还未编写文档,仅有参数列表。
Returns the previous row as an array of pixel wands from the pixel iterator.
返回值
Returns the previous row as an array of ImagickPixelWand objects from the ImagickPixelIterator, throwing ImagickPixelIteratorException on error.
ImagickPixelIterator::newPixelIterator
Returns a new pixel iterator
说明
public bool
ImagickPixelIterator::newPixelIterator (
Imagick
$wand
)
Warning
本函数还未编写文档,仅有参数列表。
Returns a new pixel iterator.
返回值
成功时返回 true
。 Throwing ImagickPixelIteratorException.
ImagickPixelIterator::newPixelRegionIterator
Returns a new pixel iterator
说明
public bool
<span
class="methodname">ImagickPixelIterator::newPixelRegionIterator (
Imagick
$wand
, int
$x
, int
$y
, int
$columns
, <span
class="type">int $rows
)
Warning
本函数还未编写文档,仅有参数列表。
Returns a new pixel iterator.
参数
wand
x
y
columns
rows
返回值
Returns a new ImagickPixelIterator on success; on failure, throws ImagickPixelIteratorException.
ImagickPixelIterator::resetIterator
Resets the pixel iterator
说明
public bool ImagickPixelIterator::resetIterator ( void )
Warning
本函数还未编写文档,仅有参数列表。
Resets the pixel iterator. Use it in conjunction with ImagickPixelIterator::getNextIteratorRow() to iterate over all the pixels in a pixel container.
返回值
成功时返回 true
。
范例
示例 #1 <span class="function">ImagickPixelIterator::resetIterator
<?php
function resetIterator($imagePath) {
$imagick = new \Imagick(realpath($imagePath));
$imageIterator = $imagick->getPixelIterator();
/* Loop trough pixel rows */
foreach ($imageIterator as $pixels) {
/* Loop through the pixels in the row (columns) */
foreach ($pixels as $column => $pixel) {
/** @var $pixel \ImagickPixel */
if ($column % 2) {
/* Make every second pixel 25% red*/
$pixel->setColorValue(\Imagick::COLOR_RED, 64);
}
}
/* Sync the iterator, this is important to do on each iteration */
$imageIterator->syncIterator();
}
$imageIterator->resetiterator();
/* Loop trough pixel rows */
foreach ($imageIterator as $pixels) {
/* Loop through the pixels in the row (columns) */
foreach ($pixels as $column => $pixel) {
/** @var $pixel \ImagickPixel */
if ($column % 3) {
$pixel->setColorValue(\Imagick::COLOR_BLUE, 64); /* Make every second pixel a little blue*/
//$pixel->setColor("rgba(0, 0, 128, 0)"); /* Paint every second pixel black*/
}
}
$imageIterator->syncIterator(); /* Sync the iterator, this is important to do on each iteration */
}
$imageIterator->clear();
header("Content-Type: image/jpg");
echo $imagick;
}
?>
ImagickPixelIterator::setIteratorFirstRow
Sets the pixel iterator to the first pixel row
说明
public bool <span class="methodname">ImagickPixelIterator::setIteratorFirstRow ( void )
Warning
本函数还未编写文档,仅有参数列表。
Sets the pixel iterator to the first pixel row.
返回值
成功时返回 true
。
ImagickPixelIterator::setIteratorLastRow
Sets the pixel iterator to the last pixel row
说明
public bool ImagickPixelIterator::setIteratorLastRow ( void )
Warning
本函数还未编写文档,仅有参数列表。
Sets the pixel iterator to the last pixel row.
返回值
成功时返回 true
。
ImagickPixelIterator::setIteratorRow
Set the pixel iterator row
说明
public bool
ImagickPixelIterator::setIteratorRow (
int $row
)
Warning
本函数还未编写文档,仅有参数列表。
Set the pixel iterator row.
参数
row
返回值
成功时返回 true
。
范例
示例 #1 <span class="function">ImagickPixelIterator::setIteratorRow
<?php
function setIteratorRow($imagePath) {
$imagick = new \Imagick(realpath($imagePath));
$imageIterator = $imagick->getPixelRegionIterator(200, 100, 200, 200);
for ($x = 0; $x < 20; $x++) {
$imageIterator->setIteratorRow($x * 5);
$pixels = $imageIterator->getCurrentIteratorRow();
/* Loop through the pixels in the row (columns) */
foreach ($pixels as $pixel) {
/** @var $pixel \ImagickPixel */
/* Paint every second pixel black*/
$pixel->setColor("rgba(0, 0, 0, 0)");
}
/* Sync the iterator, this is important to do on each iteration */
$imageIterator->syncIterator();
}
header("Content-Type: image/jpg");
echo $imagick;
}
?>
ImagickPixelIterator::syncIterator
Syncs the pixel iterator
说明
public bool ImagickPixelIterator::syncIterator ( void )
Warning
本函数还未编写文档,仅有参数列表。
Syncs the pixel iterator.
返回值
成功时返回 true
。