Gmagick::medianfilterimage
(PECL gmagick >= Unknown)
Gmagick::medianfilterimage — Applies a digital filter
Description
public void Gmagick::medianfilterimage
( 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.
Parameters
-
radius -
The radius of the pixel neighborhood.
Return Values
Gmagick object with median filter applied.
Errors/Exceptions
Throws an GmagickException on error.
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- Gmagick
- Функция Gmagick::addimage() - Adds new image to Gmagick object image list
- Функция Gmagick::addnoiseimage() - Adds random noise to the image
- Функция Gmagick::annotateimage() - Annotates an image with text
- Функция Gmagick::blurimage() - Adds blur filter to image
- Функция Gmagick::borderimage() - Surrounds the image with a border
- Функция Gmagick::charcoalimage() - Simulates a charcoal drawing
- Функция Gmagick::chopimage() - Removes a region of an image and trims
- Функция Gmagick::clear() - Clears all resources associated to Gmagick object
- Функция Gmagick::commentimage() - Adds a comment to your image
- Функция Gmagick::compositeimage() - Composite one image onto another
- Функция Gmagick::__construct() - The Gmagick constructor
- Функция Gmagick::cropimage() - Extracts a region of the image
- Функция Gmagick::cropthumbnailimage() - Creates a crop thumbnail
- Функция Gmagick::current() - The current purpose
- Функция Gmagick::cyclecolormapimage() - Displaces an image's colormap
- Функция Gmagick::deconstructimages() - Returns certain pixel differences between images
- Функция Gmagick::despeckleimage() - The despeckleimage purpose
- Функция Gmagick::destroy() - The destroy purpose
- Функция Gmagick::drawimage() - Renders the GmagickDraw object on the current image
- Функция Gmagick::edgeimage() - Enhance edges within the image
- Функция Gmagick::embossimage() - Returns a grayscale image with a three-dimensional effect
- Функция Gmagick::enhanceimage() - Improves the quality of a noisy image
- Функция Gmagick::equalizeimage() - Equalizes the image histogram
- Функция Gmagick::flipimage() - Creates a vertical mirror image
- Функция Gmagick::flopimage() - The flopimage purpose
- Функция Gmagick::frameimage() - Adds a simulated three-dimensional border
- Функция Gmagick::gammaimage() - Gamma-corrects an image
- Функция Gmagick::getcopyright() - Returns the GraphicsMagick API copyright as a string
- Функция Gmagick::getfilename() - The filename associated with an image sequence
- Функция Gmagick::getimagebackgroundcolor() - Returns the image background color
- Функция Gmagick::getimageblueprimary() - Returns the chromaticy blue primary point
- Функция Gmagick::getimagebordercolor() - Returns the image border color
- Функция Gmagick::getimagechanneldepth() - Gets the depth for a particular image channel
- Функция Gmagick::getimagecolors() - Returns the color of the specified colormap index
- Функция Gmagick::getimagecolorspace() - Gets the image colorspace
- Функция Gmagick::getimagecompose() - Returns the composite operator associated with the image
- Функция Gmagick::getimagedelay() - Gets the image delay
- Функция Gmagick::getimagedepth() - Gets the depth of the image
- Функция Gmagick::getimagedispose() - Gets the image disposal method
- Функция Gmagick::getimageextrema() - Gets the extrema for the image
- Функция Gmagick::getimagefilename() - Returns the filename of a particular image in a sequence
- Функция Gmagick::getimageformat() - Returns the format of a particular image in a sequence
- Функция Gmagick::getimagegamma() - Gets the image gamma
- Функция Gmagick::getimagegreenprimary() - Returns the chromaticy green primary point
- Функция Gmagick::getimageheight() - Returns the image height
- Функция Gmagick::getimagehistogram() - Gets the image histogram
- Функция Gmagick::getimageindex() - Gets the index of the current active image
- Функция Gmagick::getimageinterlacescheme() - Gets the image interlace scheme
- Функция Gmagick::getimageiterations() - Gets the image iterations
- Функция Gmagick::getimagematte() - Return if the image has a matte channel
- Функция Gmagick::getimagemattecolor() - Returns the image matte color
- Функция Gmagick::getimageprofile() - Returns the named image profile.
- Функция Gmagick::getimageredprimary() - Returns the chromaticity red primary point
- Функция Gmagick::getimagerenderingintent() - Gets the image rendering intent
- Функция Gmagick::getimageresolution() - Gets the image X and Y resolution
- Функция Gmagick::getimagescene() - Gets the image scene
- Функция Gmagick::getimagesignature() - Generates an SHA-256 message digest
- Функция Gmagick::getimagetype() - Gets the potential image type.
- Функция Gmagick::getimageunits() - Gets the image units of resolution
- Функция Gmagick::getimagewhitepoint() - Returns the chromaticity white point
- Функция Gmagick::getimagewidth() - Returns the width of the image
- Функция Gmagick::getpackagename() - Returns the GraphicsMagick package name.
- Функция Gmagick::getquantumdepth() - Returns the Gmagick quantum depth as a string.
- Функция Gmagick::getreleasedate() - Returns the GraphicsMagick release date as a string.
- Функция Gmagick::getsamplingfactors() - Gets the horizontal and vertical sampling factor.
- Функция Gmagick::getsize() - Returns the size associated with the Gmagick object
- Функция Gmagick::getversion() - Returns the GraphicsMagick API version
- Функция Gmagick::hasnextimage() - Checks if the object has more images
- Функция Gmagick::haspreviousimage() - Checks if the object has a previous image
- Функция Gmagick::implodeimage() - Creates a new image as a copy
- Функция Gmagick::labelimage() - Adds a label to an image.
- Функция Gmagick::levelimage() - Adjusts the levels of an image
- Функция Gmagick::magnifyimage() - Scales an image proportionally 2x
- Функция Gmagick::mapimage() - Replaces the colors of an image with the closest color from a reference image.
- Функция Gmagick::medianfilterimage() - Applies a digital filter
- Функция Gmagick::minifyimage() - Scales an image proportionally to half its size
- Функция Gmagick::modulateimage() - Control the brightness, saturation, and hue
- Функция Gmagick::motionblurimage() - Simulates motion blur
- Функция Gmagick::newimage() - Creates a new image
- Функция Gmagick::nextimage() - Moves to the next image
- Функция Gmagick::normalizeimage() - Enhances the contrast of a color image
- Функция Gmagick::oilpaintimage() - Simulates an oil painting
- Функция Gmagick::previousimage() - Move to the previous image in the object
- Функция Gmagick::profileimage() - Adds or removes a profile from an image
- Функция Gmagick::quantizeimage() - Analyzes the colors within a reference image
- Функция Gmagick::quantizeimages() - The quantizeimages purpose
- Функция Gmagick::queryfontmetrics() - Returns an array representing the font metrics
- Функция Gmagick::queryfonts() - Returns the configured fonts
- Функция Gmagick::queryformats() - Returns formats supported by Gmagick.
- Функция Gmagick::radialblurimage() - Radial blurs an image
- Функция Gmagick::raiseimage() - Creates a simulated 3d button-like effect
- Функция Gmagick::read() - Reads image from filename
- Функция Gmagick::readimage() - Reads image from filename
- Функция Gmagick::readimageblob() - Reads image from a binary string
- Функция Gmagick::readimagefile() - The readimagefile purpose
- Функция Gmagick::reducenoiseimage() - Smooths the contours of an image
- Функция Gmagick::removeimage() - Removes an image from the image list
- Функция Gmagick::removeimageprofile() - Removes the named image profile and returns it
- Функция Gmagick::resampleimage() - Resample image to desired resolution
- Функция Gmagick::resizeimage() - Scales an image
- Функция Gmagick::rollimage() - Offsets an image
- Функция Gmagick::rotateimage() - Rotates an image
- Функция Gmagick::scaleimage() - Scales the size of an image
- Функция Gmagick::separateimagechannel() - Separates a channel from the image
- Gmagick::setCompressionQuality
- Функция Gmagick::setfilename() - Sets the filename before you read or write the image
- Функция Gmagick::setimagebackgroundcolor() - Sets the image background color.
- Функция Gmagick::setimageblueprimary() - Sets the image chromaticity blue primary point.
- Функция Gmagick::setimagebordercolor() - Sets the image border color.
- Функция Gmagick::setimagechanneldepth() - Sets the depth of a particular image channel
- Функция Gmagick::setimagecolorspace() - Sets the image colorspace
- Функция Gmagick::setimagecompose() - Sets the image composite operator
- Функция Gmagick::setimagedelay() - Sets the image delay
- Функция Gmagick::setimagedepth() - Sets the image depth
- Функция Gmagick::setimagedispose() - Sets the image disposal method
- Функция Gmagick::setimagefilename() - Sets the filename of a particular image in a sequence
- Функция Gmagick::setimageformat() - Sets the format of a particular image
- Функция Gmagick::setimagegamma() - Sets the image gamma
- Функция Gmagick::setimagegreenprimary() - TSets the image chromaticity green primary point.
- Функция Gmagick::setimageindex() - Set the iterator to the position in the image list specified with the index parameter
- Функция Gmagick::setimageinterlacescheme() - Sets the interlace scheme of the image.
- Функция Gmagick::setimageiterations() - Sets the image iterations.
- Функция Gmagick::setimageprofile() - Adds a named profile to the Gmagick object
- Функция Gmagick::setimageredprimary() - Sets the image chromaticity red primary point.
- Функция Gmagick::setimagerenderingintent() - Sets the image rendering intent
- Функция Gmagick::setimageresolution() - Sets the image resolution
- Функция Gmagick::setimagescene() - Sets the image scene
- Функция Gmagick::setimagetype() - Sets the image type
- Функция Gmagick::setimageunits() - Sets the image units of resolution.
- Функция Gmagick::setimagewhitepoint() - Sets the image chromaticity white point.
- Функция Gmagick::setsamplingfactors() - Sets the image sampling factors.
- Функция Gmagick::setsize() - Sets the size of the Gmagick object
- Функция Gmagick::shearimage() - Creating a parallelogram
- Функция Gmagick::solarizeimage() - Applies a solarizing effect to the image
- Функция Gmagick::spreadimage() - Randomly displaces each pixel in a block
- Функция Gmagick::stripimage() - Strips an image of all profiles and comments
- Функция Gmagick::swirlimage() - Swirls the pixels about the center of the image
- Функция Gmagick::thumbnailimage() - Changes the size of an image
- Функция Gmagick::trimimage() - Remove edges from the image
- Функция Gmagick::write() - Writes an image to the specified filename
- Функция Gmagick::writeimage() - Writes an image to the specified filename
Коментарии
For people like me who like a quick reference, the filters are:
FILTER_UNDEFINED => UndefinedFilter
FILTER_POINT => PointFilter
FILTER_BOX => BoxFilter
FILTER_TRIANGLE => TriangleFilter
FILTER_HERMITE => HermiteFilter
FILTER_HANNING => HanningFilter
FILTER_HAMMING => HammingFilter
FILTER_BLACKMAN => BlackmanFilter
FILTER_GAUSSIAN => GaussianFilter
FILTER_QUADRATIC => QuadraticFilter
FILTER_CUBIC => CubicFilter
FILTER_CATROM => CatromFilter
FILTER_MITCHELL => MitchellFilter
FILTER_LANCZOS => LanczosFilter
FILTER_BESSEL => BesselFilter
FILTER_SINC => SincFilter
Ref: https://github.com/vitoc/gmagick/blob/master/gmagick_helpers.c