You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
337 lines
18 KiB
337 lines
18 KiB
.TH convert 1 "Date: 2009/01/10 01:00:00" "ImageMagick"
|
|
.SH NAME
|
|
convert \- convert between image formats as well as resize an image, blur, crop, despeckle, dither, draw on, flip, join, re-sample, and much more.
|
|
.SH SYNOPSIS
|
|
.TP
|
|
\fBconvert\fP [\fIinput-options\fP] \fIinput-file\fP [\fIoutput-options\fP] \fIoutput-file\fP
|
|
.SH OVERVIEW
|
|
The \fBconvert\fP program is a member of the ImageMagick(1) suite of tools. Use it to convert between image formats as well as resize an image, blur, crop, despeckle, dither, draw on, flip, join, re-sample, and much more.
|
|
|
|
For more information about the convert command, point your browser to file://@DOCUMENTATION_PATH@/www/convert.html or http://imagemagick.org/script/convert.php.
|
|
.SH DESCRIPTION
|
|
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 value decrypt 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
|
|
\-cdl filename color correct with a color decision list
|
|
\-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
|
|
\-decipher filename convert cipher pixels to plain pixels
|
|
\-define format:option
|
|
define one or more image format options
|
|
\-delay centiseconds 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
|
|
\-encipher filename convert plain pixels to cipher pixels
|
|
\-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
|
|
\-flatten flatten a sequence of images
|
|
\-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
|
|
\-intensity method method to generate intensity value from 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
|
|
\-metric type measure differences between images with this metric
|
|
\-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
|
|
\-statistic type geometry
|
|
replace each pixel with corresponding statistic from the neighborhood
|
|
\-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
|
|
\-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
|
|
|
|
Image Operators:
|
|
\-adaptive-blur geometry
|
|
adaptively blur pixels; decrease effect near edges
|
|
\-adaptive-resize geometry
|
|
adaptively resize image with data dependent triangulation
|
|
\-adaptive-sharpen geometry
|
|
adaptively sharpen pixels; increase effect near edges
|
|
\-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 automatically orient 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
|
|
\-brightness-contrast geometry
|
|
improve brightness / contrast of the image
|
|
\-canny geometry detect edges in the image
|
|
\-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)
|
|
\-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
|
|
\-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
|
|
\-color-threshold start_color-stop_color
|
|
force all pixels in the color range to white otherwise black
|
|
\-connected-component 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
|
|
\-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
|
|
\-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 apply a function to the image
|
|
\-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
|
|
\-kmeans geometry K means color reduction
|
|
\-lat geometry local adaptive thresholding
|
|
\-layers method optimize or compare image layers
|
|
\-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' the intensity range
|
|
\-liquid-rescale geometry
|
|
rescale image with seam-carving
|
|
\-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 each 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
|
|
\-print string interpret string and print to console
|
|
\-profile filename add, delete, or apply an image profile
|
|
\-quantize colorspace reduce colors in this colorspace
|
|
\-radial-blur angle radial blur the image
|
|
\-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
|
|
\-resize geometry resize the image
|
|
\-roll geometry roll an image vertically or horizontally
|
|
\-rotate degrees apply Paeth rotation to 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
|
|
\-shear geometry slide one edge of the image along the X or Y axis
|
|
\-sigmoidal-contrast geometry
|
|
lightness rescaling using sigmoidal contrast enhancement
|
|
\-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 amount displace image pixels by a random amount
|
|
\-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 top to bottom (use +append for left to right)
|
|
\-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
|
|
\-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)
|
|
\-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
|
|
\-log format format of debugging information
|
|
\-list type print a list of supported option arguments
|
|
\-version print version information
|
|
|
|
Use any setting or operator as an \fIoutput-option\fP. Only a limited number of setting are \fIinput-option\fP. They include: \-antialias, \-caption, \-density, \-define, \-encoding, \-font, \-pointsize, \-size, and \-texture as well as any of the miscellaneous options.
|
|
|
|
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.
|
|
.SH SEE ALSO
|
|
ImageMagick(1)
|
|
|
|
.SH COPYRIGHT
|
|
\fBCopyright (C) 1999-2020 ImageMagick Studio LLC. Additional copyrights and licenses apply to this software, see file://@DOCUMENTATION_PATH@/www/license.html or http://imagemagick.org/script/license.php\fP
|