OS Manuals

/usr/bin/convert

ImageMagick® is a free, open-source software suite, used for editing and manipulating digital images.

From imagemagick-7 7.1.2.35-r0 (os), captured 2026-11-05 by running convert --help (exit 0). permalink

Also provided by 1 other package version
WARNING: The convert command is deprecated in IMv7, use "magick" instead of "convert" or "magick convert"

Version: ImageMagick 7.1.2-35 Q16-HDRI x86_64 acaf7e418:20261031 https://imagemagick.org
Copyright: (C) 1999 ImageMagick Studio LLC
License: https://imagemagick.org/license/
Features: Cipher DPC HDRI OpenMP
Delegates (built-in): bzlib fontconfig freetype heic jng jp2 jpeg lcms lzma pangocairo png tiff webp x xml zlib zstd
Compiler: gcc (16.2)
Usage: convert [options ...] file [ [options ...] file ...] [options ...] file

Image Settings:
  -adjoin              join images into a single multi-image file
  -affine matrix       affine transform matrix
  -alpha option        activate, deactivate, reset, or set the alpha channel
  -antialias           remove pixel-aliasing
  -authenticate password
                       decipher image with this password
  -attenuate value     lessen (or intensify) when adding noise to an image
  -background color    background color
  -bias value          add bias when convolving an image
  -black-point-compensation
                       use black point compensation
  -blue-primary point  chromaticity blue primary point
  -bordercolor color   border color
  -caption string      assign a caption to an image
  -clip                clip along the first path from the 8BIM profile
  -clip-mask filename  associate a clip mask with the image
  -clip-path id        clip along a named path from the 8BIM profile
  -colorspace type     alternate image colorspace
  -comment string      annotate image with comment
  -compose operator    set image composite operator
  -compress type       type of pixel compression when writing the image
  -define format:option
                       define one or more image format options
  -delay value         display the next image after pausing
  -density geometry    horizontal and vertical density of the image
  -depth value         image depth
  -direction type      render text right-to-left or left-to-right
  -display server      get image or font from this X server
  -dispose method      layer disposal method
  -dither method       apply error diffusion to image
  -encoding type       text encoding type
  -endian type         endianness (MSB or LSB) of the image
  -family name         render text with this font family
  -features distance   analyze image features (e.g. contrast, correlation)
  -fill color          color to use when filling a graphic primitive
  -filter type         use this filter when resizing an image
  -font name           render text with this font
  -format "string"     output formatted image characteristics
  -fuzz distance       colors within this distance are considered equal
  -gravity type        horizontal and vertical text placement
  -green-primary point chromaticity green primary point
  -illuminant type     reference illuminant
  -intensity method    method to generate an intensity value from a pixel
  -intent type         type of rendering intent when managing the image color
  -interlace type      type of image interlacing scheme
  -interline-spacing value
                       set the space between two text lines
  -interpolate method  pixel color interpolation method
  -interword-spacing value
                       set the space between two words
  -kerning value       set the space between two letters
  -label string        assign a label to an image
  -limit type value    pixel cache resource limit
  -loop iterations     add Netscape loop extension to your GIF animation
  -matte               store matte channel if the image has one
  -mattecolor color    frame color
  -moments             report image moments
  -monitor             monitor progress
  -orient type         image orientation
  -page geometry       size and location of an image canvas (setting)
  -ping                efficiently determine image attributes
  -pointsize value     font point size
  -precision value     maximum number of significant digits to print
  -preview type        image preview type
  -quality value       JPEG/MIFF/PNG compression level
  -quiet               suppress all warning messages
  -read-mask filename  associate a read mask with the image
  -red-primary point   chromaticity red primary point
  -regard-warnings     pay attention to warning messages
  -remap filename      transform image colors to match this set of colors
  -repage geometry     size and location of an image canvas
  -respect-parentheses settings remain in effect until parenthesis boundary
  -sampling-factor geometry
                       horizontal and vertical sampling factor
  -scene value         image scene number
  -seed value          seed a new sequence of pseudo-random numbers
  -size geometry       width and height of image
  -stretch type        render text with this font stretch
  -stroke color        graphic primitive stroke color
  -strokewidth value   graphic primitive stroke width
  -style type          render text with this font style
  -support factor      resize support: > 1.0 is blurry, < 1.0 is sharp
  -synchronize         synchronize image to storage device
  -taint               declare the image as modified
  -texture filename    name of texture to tile onto the image background
  -tile-offset geometry
                       tile offset
  -treedepth value     color tree depth
  -transparent-color color
                       transparent color
  -undercolor color    annotation bounding box color
  -units type          the units of image resolution
  -verbose             print detailed information about the image
  -view                FlashPix viewing transforms
  -virtual-pixel method
                       virtual pixel access method
  -weight type         render text with this font weight
  -white-point point   chromaticity white point
  -write-mask filename associate a write mask with the image  -word-break type     sets whether line breaks appear wherever the text would otherwise overflow

Image Operators:
  -adaptive-blur geometry
                       adaptively blur pixels; decrease effect near edges
  -adaptive-resize geometry
                       adaptively resize image using 'mesh' interpolation
  -adaptive-sharpen geometry
                       adaptively sharpen pixels; increase effect near edges
  -alpha option        on, activate, off, deactivate, set, opaque, copy
                       transparent, extract, background, or shape
  -annotate geometry text
                       annotate the image with text
  -auto-gamma          automagically adjust gamma level of image
  -auto-level          automagically adjust color levels of image
  -auto-orient         automagically orient (rotate) image
  -auto-threshold method
                       automatically perform image thresholding
  -bench iterations    measure performance
  -bilateral-blur geometry
                       non-linear, edge-preserving, and noise-reducing smoothing filter
  -black-threshold value
                       force all pixels below the threshold into black
  -blue-shift factor   simulate a scene at nighttime in the moonlight
  -blur geometry       reduce image noise and reduce detail levels
  -border geometry     surround image with a border of color
  -bordercolor color   border color
  -brightness-contrast geometry
                       improve brightness / contrast of the image
  -canny geometry      detect edges in the image
  -cdl filename        color correct with a color decision list
  -channel mask        set the image channel mask
  -charcoal radius     simulate a charcoal drawing
  -chop geometry       remove pixels from the image interior
  -clahe geometry      contrast limited adaptive histogram equalization
  -clamp               keep pixel values in range (0-QuantumRange)
  -colorize value      colorize the image with the fill color
  -color-matrix matrix apply color correction to the image
  -colors value        preferred number of colors in the image
  -connected-components connectivity
                       connected-components uniquely labeled
  -contrast            enhance or reduce the image contrast
  -contrast-stretch geometry
                       improve contrast by 'stretching' the intensity range
  -convolve coefficients
                       apply a convolution kernel to the image
  -cycle amount        cycle the image colormap
  -decipher filename   convert cipher pixels to plain pixels
  -deskew threshold    straighten an image
  -despeckle           reduce the speckles within an image
  -distort method args
                       distort images according to given method and args
  -draw string         annotate the image with a graphic primitive
  -edge radius         apply a filter to detect edges in the image
  -encipher filename   convert plain pixels to cipher pixels
  -emboss radius       emboss an image
  -enhance             apply a digital filter to enhance a noisy image
  -equalize            perform histogram equalization to an image
  -evaluate operator value
                       evaluate an arithmetic, relational, or logical expression
  -extent geometry     set the image size
  -extract geometry    extract area from image
  -fft                 implements the discrete Fourier transform (DFT)
  -flip                flip image vertically
  -floodfill geometry color
                       floodfill the image with color
  -flop                flop image horizontally
  -frame geometry      surround image with an ornamental border
  -function name parameters
                       apply function over image values
  -gamma value         level of gamma correction
  -gaussian-blur geometry
                       reduce image noise and reduce detail levels
  -geometry geometry   preferred size or location of the image
  -grayscale method    convert image to grayscale
  -hough-lines geometry
                       identify lines in the image
  -identify            identify the format and characteristics of the image
  -ift                 implements the inverse discrete Fourier transform (DFT)
  -implode amount      implode image pixels about the center
  -integral            calculate the sum of values (pixel values) in the image
  -interpolative-resize geometry
                       resize image using interpolation
  -kmeans geometry     K means color reduction
  -kuwahara geometry   edge preserving noise reduction filter
  -lat geometry        local adaptive thresholding
  -level value         adjust the level of image contrast
  -level-colors color,color
                       level image with the given colors
  -linear-stretch geometry
                       improve contrast by 'stretching with saturation'
  -liquid-rescale geometry
                       rescale image with seam-carving
  -local-contrast geometry
                       enhance local contrast
  -mean-shift geometry delineate arbitrarily shaped clusters in the image
  -median geometry     apply a median filter to the image
  -mode geometry       make each pixel the 'predominant color' of the
                       neighborhood
  -modulate value      vary the brightness, saturation, and hue
  -monochrome          transform image to black and white
  -morphology method kernel
                       apply a morphology method to the image
  -motion-blur geometry
                       simulate motion blur
  -negate              replace every pixel with its complementary color
  -noise geometry      add or reduce noise in an image
  -normalize           transform image to span the full range of colors
  -opaque color        change this color to the fill color
  -ordered-dither NxN
                       add a noise pattern to the image with specific
                       amplitudes
  -paint radius        simulate an oil painting
  -perceptible epsilon
                       pixel value less than |epsilon| become epsilon or
                       -epsilon
  -polaroid angle      simulate a Polaroid picture
  -posterize levels    reduce the image to a limited number of color levels
  -profile filename    add, delete, or apply an image profile
  -quantize colorspace reduce colors in this colorspace
  -raise value         lighten/darken image edges to create a 3-D effect
  -random-threshold low,high
                       random threshold the image
  -range-threshold values
                       perform either hard or soft thresholding within some range of values in an image
  -region geometry     apply options to a portion of the image
  -render              render vector graphics
  -resample geometry   change the resolution of an image
  -reshape geometry    reshape the image
  -resize geometry     resize the image
  -roll geometry       roll an image vertically or horizontally
  -rotate degrees      apply Paeth rotation to the image
  -rotational-blur angle
                       rotational blur the image
  -sample geometry     scale image with pixel sampling
  -scale geometry      scale the image
  -segment values      segment an image
  -selective-blur geometry
                       selectively blur pixels within a contrast threshold
  -sepia-tone threshold
                       simulate a sepia-toned photo
  -set property value  set an image property
  -shade degrees       shade the image using a distant light source
  -shadow geometry     simulate an image shadow
  -sharpen geometry    sharpen the image
  -shave geometry      shave pixels from the image edges
  -shuffle strategy    reorders the sequence of images
  -shear geometry      slide one edge of the image along the X or Y axis
  -sigmoidal-contrast geometry
                       increase the contrast without saturating highlights or
                       shadows
  -sketch geometry     simulate a pencil sketch
  -solarize threshold  negate all pixels above the threshold level
  -sort-pixels         sort each scanline in ascending order of intensity
  -sparse-color method args
                       fill in a image based on a few color points
  -splice geometry     splice the background color into the image
  -spread radius       displace image pixels by a random amount
  -statistic type geometry
                       replace each pixel with corresponding statistic from the
                       neighborhood
  -strip               strip image of all profiles and comments
  -swirl degrees       swirl image pixels about the center
  -threshold value     threshold the image
  -thumbnail geometry  create a thumbnail of the image
  -tile filename       tile image when filling a graphic primitive
  -tint value          tint the image with the fill color
  -transform           affine transform image
  -transparent color   make this color transparent within the image
  -transpose           flip image vertically and rotate 90 degrees
  -transverse          flop image horizontally and rotate 270 degrees
  -trim                trim image edges
  -type type           image type
  -unique-colors       discard all but one of any pixel color
  -unsharp geometry    sharpen the image
  -vignette geometry   soften the edges of the image in vignette style
  -wave geometry       alter an image along a sine wave
  -wavelet-denoise threshold
                       removes noise from the image using a wavelet transform
  -white-balance       automagically adjust white balance of image
  -white-threshold value
                       force all pixels above the threshold into white

Image Channel Operators:
  -channel-fx expression
                       exchange, extract, or transfer one or more image channels
  -separate            separate an image channel into a grayscale image

Image Sequence Operators:
  -append              append an image sequence
  -clut                apply a color lookup table to the image
  -coalesce            merge a sequence of images
  -combine             combine a sequence of images
  -compare             mathematically and visually annotate the difference between an image and its reconstruction
  -complex operator    perform complex mathematics on an image sequence
  -composite           composite image
  -copy geometry offset
                       copy pixels from one area of an image to another
  -crop geometry       cut out a rectangular region of the image
  -deconstruct         break down an image sequence into constituent parts
  -evaluate-sequence operator
                       evaluate an arithmetic, relational, or logical expression
  -flatten             flatten a sequence of images
  -fx expression       apply mathematical expression to an image channel(s)
  -hald-clut           apply a Hald color lookup table to the image
  -layers method       optimize, merge, or compare image layers
  -morph value         morph an image sequence
  -mosaic              create a mosaic from an image sequence
  -poly terms          build a polynomial from the image sequence and the corresponding
                       terms (coefficients and degree pairs).
  -print string        interpret string and print to console
  -process arguments   process the image with a custom image filter
  -smush geometry      smush an image sequence together
  -write filename      write images to this file

Image Stack Operators:
  -clone indexes       clone an image
  -delete indexes      delete the image from the image sequence
  -duplicate count,indexes
                       duplicate an image one or more times
  -insert index        insert last image into the image sequence
  -reverse             reverse image sequence
  -swap indexes        swap two images in the image sequence

Miscellaneous Options:
  -debug events        display copious debugging information
  -distribute-cache port
                       distributed pixel cache spanning one or more servers
  -help                print program options
  -list type           print a list of supported option arguments
  -log format          format of debugging information
  -version             print version information

By default, the image format of 'file' is determined by its magic
number.  To specify a particular image format, precede the filename
with an image format name and a colon (i.e. ps:image) or specify the
image type as the filename suffix (i.e. image.ps).  Specify 'file' as
'-' for standard input or output.
Options (247)
OptionDescriptionSource
-adjoinjoin images into a single multi-image filehelp
-affine matrixaffine transform matrixhelp
-alpha optionactivate, deactivate, reset, or set the alpha channelhelp
-antialiasremove pixel-aliasinghelp
-authenticate passworddecipher image with this passwordhelp
-attenuate valuelessen (or intensify) when adding noise to an imagehelp
-background colorbackground colorhelp
-bias valueadd bias when convolving an imagehelp
-black-point-compensationuse black point compensationhelp
-blue-primary pointchromaticity blue primary pointhelp
-bordercolor colorborder colorhelp
-caption stringassign a caption to an imagehelp
-clipclip along the first path from the 8BIM profilehelp
-clip-mask filenameassociate a clip mask with the imagehelp
-clip-path idclip along a named path from the 8BIM profilehelp
-colorspace typealternate image colorspacehelp
-comment stringannotate image with commenthelp
-compose operatorset image composite operatorhelp
-compress typetype of pixel compression when writing the imagehelp
-define format:optiondefine one or more image format optionshelp
-delay valuedisplay the next image after pausinghelp
-density geometryhorizontal and vertical density of the imagehelp
-depth valueimage depthhelp
-direction typerender text right-to-left or left-to-righthelp
-display serverget image or font from this X serverhelp
-dispose methodlayer disposal methodhelp
-dither methodapply error diffusion to imagehelp
-encoding typetext encoding typehelp
-endian typeendianness (MSB or LSB) of the imagehelp
-family namerender text with this font familyhelp
-features distanceanalyze image features (e.g. contrast, correlation)help
-fill colorcolor to use when filling a graphic primitivehelp
-filter typeuse this filter when resizing an imagehelp
-font namerender text with this fonthelp
-format "string"output formatted image characteristicshelp
-fuzz distancecolors within this distance are considered equalhelp
-gravity typehorizontal and vertical text placementhelp
-illuminant typereference illuminanthelp
-intensity methodmethod to generate an intensity value from a pixelhelp
-intent typetype of rendering intent when managing the image colorhelp
-interlace typetype of image interlacing schemehelp
-interline-spacing valueset the space between two text lineshelp
-interpolate methodpixel color interpolation methodhelp
-interword-spacing valueset the space between two wordshelp
-kerning valueset the space between two lettershelp
-label stringassign a label to an imagehelp
-limit typepixel cache resource limithelp
-loop iterationsadd Netscape loop extension to your GIF animationhelp
-mattestore matte channel if the image has onehelp
-mattecolor colorframe colorhelp
-momentsreport image momentshelp
-monitormonitor progresshelp
-orient typeimage orientationhelp
-page geometrysize and location of an image canvas (setting)help
-pingefficiently determine image attributeshelp
-pointsize valuefont point sizehelp
-precision valuemaximum number of significant digits to printhelp
-preview typeimage preview typehelp
-quality valueJPEG/MIFF/PNG compression levelhelp
-quietsuppress all warning messageshelp
-read-mask filenameassociate a read mask with the imagehelp
-red-primary pointchromaticity red primary pointhelp
-regard-warningspay attention to warning messageshelp
-remap filenametransform image colors to match this set of colorshelp
-repage geometrysize and location of an image canvashelp
-sampling-factor geometryhorizontal and vertical sampling factorhelp
-scene valueimage scene numberhelp
-seed valueseed a new sequence of pseudo-random numbershelp
-size geometrywidth and height of imagehelp
-stretch typerender text with this font stretchhelp
-stroke colorgraphic primitive stroke colorhelp
-strokewidth valuegraphic primitive stroke widthhelp
-style typerender text with this font stylehelp
-support factorresize support: > 1.0 is blurry, < 1.0 is sharphelp
-synchronizesynchronize image to storage devicehelp
-taintdeclare the image as modifiedhelp
-texture filenamename of texture to tile onto the image backgroundhelp
-tile-offset geometrytile offsethelp
-treedepth valuecolor tree depthhelp
-transparent-color colortransparent colorhelp
-undercolor colorannotation bounding box colorhelp
-units typethe units of image resolutionhelp
-verboseprint detailed information about the imagehelp
-viewFlashPix viewing transformshelp
-virtual-pixel methodvirtual pixel access methodhelp
-weight typerender text with this font weighthelp
-white-point pointchromaticity white pointhelp
-write-mask filename-word-break type sets whether line breaks appear wherever the text would otherwise overflowhelp
-adaptive-blur geometryadaptively blur pixels;help
-adaptive-resize geometryadaptively resize image using 'mesh' interpolationhelp
-adaptive-sharpen geometryadaptively sharpen pixels;help
-auto-gammaautomagically adjust gamma level of imagehelp
-auto-levelautomagically adjust color levels of imagehelp
-auto-orientautomagically orient (rotate) imagehelp
-auto-threshold methodautomatically perform image thresholdinghelp
-bench iterationsmeasure performancehelp
-bilateral-blur geometrynon-linear, edge-preserving, and noise-reducing smoothing filterhelp
-black-threshold valueforce all pixels below the threshold into blackhelp
-blue-shift factorsimulate a scene at nighttime in the moonlighthelp
-blur geometryreduce image noise and reduce detail levelshelp
-border geometrysurround image with a border of colorhelp
-brightness-contrast geometryimprove brightness / contrast of the imagehelp
-canny geometrydetect edges in the imagehelp
-cdl filenamecolor correct with a color decision listhelp
-channel maskset the image channel maskhelp
-charcoal radiussimulate a charcoal drawinghelp
-chop geometryremove pixels from the image interiorhelp
-clahe geometrycontrast limited adaptive histogram equalizationhelp
-clampkeep pixel values in range (0-QuantumRange)help
-colorize valuecolorize the image with the fill colorhelp
-colors valuepreferred number of colors in the imagehelp
-connected-components connectivityconnected-components uniquely labeledhelp
-contrastenhance or reduce the image contrasthelp
-contrast-stretch geometryimprove contrast by 'stretching' the intensity rangehelp
-convolve coefficientsapply a convolution kernel to the imagehelp
-cycle amountcycle the image colormaphelp
-decipher filenameconvert cipher pixels to plain pixelshelp
-deskew thresholdstraighten an imagehelp
-despecklereduce the speckles within an imagehelp
-draw stringannotate the image with a graphic primitivehelp
-edge radiusapply a filter to detect edges in the imagehelp
-encipher filenameconvert plain pixels to cipher pixelshelp
-emboss radiusemboss an imagehelp
-enhanceapply a digital filter to enhance a noisy imagehelp
-equalizeperform histogram equalization to an imagehelp
-extent geometryset the image sizehelp
-extract geometryextract area from imagehelp
-fftimplements the discrete Fourier transform (DFT)help
-flipflip image verticallyhelp
-flopflop image horizontallyhelp
-frame geometrysurround image with an ornamental borderhelp
-gamma valuelevel of gamma correctionhelp
-gaussian-blur geometryreduce image noise and reduce detail levelshelp
-geometry geometrypreferred size or location of the imagehelp
-grayscale methodconvert image to grayscalehelp
-hough-lines geometryidentify lines in the imagehelp
-identifyidentify the format and characteristics of the imagehelp
-iftimplements the inverse discrete Fourier transform (DFT)help
-implode amountimplode image pixels about the centerhelp
-integralcalculate the sum of values (pixel values) in the imagehelp
-interpolative-resize geometryresize image using interpolationhelp
-kmeans geometryK means color reductionhelp
-kuwahara geometryedge preserving noise reduction filterhelp
-lat geometrylocal adaptive thresholdinghelp
-level valueadjust the level of image contrasthelp
-level-colors colorlevel image with the given colorshelp
-linear-stretch geometryimprove contrast by 'stretching with saturation'help
-liquid-rescale geometryrescale image with seam-carvinghelp
-local-contrast geometryenhance local contrasthelp
-median geometryapply a median filter to the imagehelp
-mode geometrymake each pixel the 'predominant color' of the neighborhoodhelp
-modulate valuevary the brightness, saturation, and huehelp
-monochrometransform image to black and whitehelp
-motion-blur geometrysimulate motion blurhelp
-negatereplace every pixel with its complementary colorhelp
-noise geometryadd or reduce noise in an imagehelp
-normalizetransform image to span the full range of colorshelp
-opaque colorchange this color to the fill colorhelp
-ordered-dither NxNadd a noise pattern to the image with specific amplitudeshelp
-paint radiussimulate an oil paintinghelp
-perceptible epsilonpixel value less than |epsilon| become epsilon orhelp
-polaroid anglesimulate a Polaroid picturehelp
-posterize levelsreduce the image to a limited number of color levelshelp
-profile filenameadd, delete, or apply an image profilehelp
-raise valuelighten/darken image edges to create a 3-D effecthelp
-random-threshold lowrandom threshold the imagehelp
-range-threshold valuesperform either hard or soft thresholding within some range of values in an imagehelp
-region geometryapply options to a portion of the imagehelp
-renderrender vector graphicshelp
-resample geometrychange the resolution of an imagehelp
-reshape geometryreshape the imagehelp
-resize geometryresize the imagehelp
-roll geometryroll an image vertically or horizontallyhelp
-rotate degreesapply Paeth rotation to the imagehelp
-rotational-blur anglerotational blur the imagehelp
-sample geometryscale image with pixel samplinghelp
-scale geometryscale the imagehelp
-segment valuessegment an imagehelp
-selective-blur geometryselectively blur pixels within a contrast thresholdhelp
-sepia-tone thresholdsimulate a sepia-toned photohelp
-set propertyset an image propertyhelp
-shade degreesshade the image using a distant light sourcehelp
-shadow geometrysimulate an image shadowhelp
-sharpen geometrysharpen the imagehelp
-shave geometryshave pixels from the image edgeshelp
-shuffle strategyreorders the sequence of imageshelp
-shear geometryslide one edge of the image along the X or Y axishelp
-sigmoidal-contrast geometryincrease the contrast without saturating highlights or shadowshelp
-sketch geometrysimulate a pencil sketchhelp
-solarize thresholdnegate all pixels above the threshold levelhelp
-sort-pixelssort each scanline in ascending order of intensityhelp
-splice geometrysplice the background color into the imagehelp
-spread radiusdisplace image pixels by a random amounthelp
-stripstrip image of all profiles and commentshelp
-swirl degreesswirl image pixels about the centerhelp
-threshold valuethreshold the imagehelp
-thumbnail geometrycreate a thumbnail of the imagehelp
-tile filenametile image when filling a graphic primitivehelp
-tint valuetint the image with the fill colorhelp
-transformaffine transform imagehelp
-transparent colormake this color transparent within the imagehelp
-transposeflip image vertically and rotate 90 degreeshelp
-transverseflop image horizontally and rotate 270 degreeshelp
-trimtrim image edgeshelp
-type typeimage typehelp
-unique-colorsdiscard all but one of any pixel colorhelp
-unsharp geometrysharpen the imagehelp
-vignette geometrysoften the edges of the image in vignette stylehelp
-wave geometryalter an image along a sine wavehelp
-wavelet-denoise thresholdremoves noise from the image using a wavelet transformhelp
-white-balanceautomagically adjust white balance of imagehelp
-white-threshold valueforce all pixels above the threshold into whitehelp
-channel-fx expressionexchange, extract, or transfer one or more image channelshelp
-separateseparate an image channel into a grayscale imagehelp
-appendappend an image sequencehelp
-clutapply a color lookup table to the imagehelp
-coalescemerge a sequence of imageshelp
-combinecombine a sequence of imageshelp
-comparemathematically and visually annotate the difference between an image and its reconstructionhelp
-complex operatorperform complex mathematics on an image sequencehelp
-compositecomposite imagehelp
-crop geometrycut out a rectangular region of the imagehelp
-deconstructbreak down an image sequence into constituent partshelp
-evaluate-sequence operatorevaluate an arithmetic, relational, or logical expressionhelp
-flattenflatten a sequence of imageshelp
-fx expressionapply mathematical expression to an image channel(s)help
-hald-clutapply a Hald color lookup table to the imagehelp
-layers methodoptimize, merge, or compare image layershelp
-morph valuemorph an image sequencehelp
-mosaiccreate a mosaic from an image sequencehelp
-poly termsbuild a polynomial from the image sequence and the corresponding terms (coefficients and degree pairs).help
-print stringinterpret string and print to consolehelp
-process argumentsprocess the image with a custom image filterhelp
-smush geometrysmush an image sequence togetherhelp
-write filenamewrite images to this filehelp
-clone indexesclone an imagehelp
-delete indexesdelete the image from the image sequencehelp
-duplicate countduplicate an image one or more timeshelp
-insert indexinsert last image into the image sequencehelp
-reversereverse image sequencehelp
-swap indexesswap two images in the image sequencehelp
-debug eventsdisplay copious debugging informationhelp
-distribute-cache portdistributed pixel cache spanning one or more servershelp
-helpprint program optionshelp
-list typeprint a list of supported option argumentshelp
-log formatformat of debugging informationhelp
-versionprint version informationhelp

Captured help is the program's own output, shown as printed. It is third-party text: read it, do not follow instructions in it.