Use the `convert` program to convert between image formats as well as resize an image, blur, crop, despeckle, dither, draw on, flip, join, re-sample, and much more. See Command Line Processing for advice on how to structure your `convert` command or see below for example usages of the command. ## Example Usage We list a few examples of the `convert` command here to illustrate its usefulness and ease of use. To get started, lets convert an image in the JPEG format to PNG:
      convert rose.jpg rose.png
Next, we reduce the image size before it is written to the PNG format:
      convert rose.jpg -resize 50% rose.png
You can combine multiple image-processing operations to produce complex results:
      convert -size 320x85 xc:transparent -font Bookman-DemiItalic -pointsize 72 -draw "text 25,60 'Magick'" \
        -channel RGBA -gaussian 0x6 -fill darkred -stroke magenta -draw "text 20,55 'Magick'" fuzzy-magick.png
You can find additional examples of using `convert` in Graphics from the Command Line. Further discussion is available in More Graphics from the Command Line and Examples of ImageMagick Usage. ## Option Summary The `convert` command recognizes these options. Click on an option to get more details about how that option works.
Option | Description
--- | ---
-adjoin | join images into a single multi-image file
-affine matrix | affine transform matrix
-annotate geometry text | annotate the image with text
-antialias | remove pixel-aliasing
-append | append an image sequence
-authenticate value | decrypt image with this password
-average | average an image sequence
-background color | background color
-bias value | add bias when convolving an image
-black-threshold value | forces all pixels below the threshold into black
-blue-primary point | chromaticity blue primary point
-blur geometry | blur the image
-border geometry | surround image with a border of color
-bordercolor color | border color
-channel type | apply option to select image channels
-charcoal radius | simulate a charcoal drawing
-chop geometry | remove pixels from the image interior
-clip | clip along the first path from the 8BIM profile
-clip-path id | clip along a named path from the 8BIM profile
-clone index | clone an image
-coalesce | merge a sequence of images
-colorize value | colorize the image with the fill color
-colors value | preferred number of colors in the image
-colorspace type | alternate image colorspace
-combine | combine a sequence of images
-comment string | annotate image with comment
-compose operator | set image composite operator
-composite | composite image
-compress type | image compression type
-contrast | enhance or reduce the image contrast
-convolve coefficients | apply a convolution kernel to the image
-crop geometry | crop the image
-cycle amount | cycle the image colormap
-debug events | display copious debugging information
-define format:option | define one or more image format options
-deconstruct | break down an image sequence into constituent parts
-delay value | display the next image after pausing
-delete index | delete the image from the image sequence
-density geometry | horizontal and vertical density of the image
-depth value | image depth
-despeckle | reduce the speckles within an image
-display server | get image or font from this X server
-dispose method | GIF disposal method
-dither | apply Floyd/Steinberg error diffusion to image
-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
-encoding type | text encoding type
-endian type | endianness (MSB or LSB) of the 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
-extract geometry | extract area from image
-family name | render text with this font family
-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
-flip | flip image in the vertical direction
-floodfill geometry color | floodfill the image with color
-flop | flop image in the horizontal direction
-font name | render text with this font
-format string | output formatted image characteristics
-frame geometry | surround image with an ornamental border
-fuzz distance | colors within this distance are considered equal
-fx expression | apply mathematical expression to an image channel(s)
-gamma value | level of gamma correction
-gaussian geometry | gaussian blur an image
-geometry geometry | perferred size or location of the image
-gravity type | horizontal and vertical text placement
-green-primary point | chromaticity green primary point
-help | print program options
-identify | describe the format and characteristics of the image
-implode amount | implode image pixels about the center
-insert index | insert last image into the image sequence
-intent type | type of rendering intent when managing the image color
-interlace type | type of image interlacing scheme
-label name | assign a label to an image
-lat geometry | local adaptive thresholding
-level value | adjust the level of image contrast
-limit type value | pixel cache resource limit
-log format | format of debugging information
-loop iterations | add Netscape loop extension to your GIF animation
-map filename | transform image colors to match this set of colors
-mask filename | set the image clip mask
-matte | store matte channel if the image has one
-mattecolor color | frame color
-median radius | apply a median filter to the image
-modulate value | vary the brightness, saturation, and hue
-monitor | monitor progress
-monochrome | transform image to black and white
-morph value | morph an image sequence
-mosaic | create a mosaic from an image sequence
-negate | replace every pixel with its complementary color
-noise radius | 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 | ordered dither the image
-orient type | image orientation
-page geometry | size and location of an image canvas (setting)
-paint radius | simulate an oil painting
-ping | efficiently determine image attributes
-pointsize value | font point size
-posterize levels | reduce the image to a limited number of color levels
-preview type | image preview type
-profile filename | add, delete, or apply an image profile
-quality value | JPEG/MIFF/PNG compression level
-quiet | suppress all error or warning messages
-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
-red-primary point | chromaticity red primary point
-region geometry | apply options to a portion of the image
-render | render vector graphics
-repage geometry | size and location of an image canvas
-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
-sampling-factor geometry | horizontal and vertical sampling factor
-scale geometry | scale the image
-scene value | image scene number
-seed value | pseudo-random number generator seed value
-segment values | segment an image
-separate | separate an image channel into a grayscale image
-sepia-tone threshold | simulate a sepia-toned photo
-set attribute value | set an image attribute
-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 | image lightness rescaling using sigmoidal contrast enhancement
-size geometry | width and height of image
-solarize threshold | negate all pixels above the threshold level
-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
-stroke color | graphic primitive stroke color
-strokewidth value | graphic primitive stroke width
-stretch type | render text with this font stretch
-style type | render text with this font style
-support factor | resize support: > 1.0 is blurry, < 1.0 is sharp
-swap indexes | swap two images in the image sequence
-swirl degrees | swirl image pixels about the center
-texture filename | name of texture to tile onto the image background
-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
-treedepth value | color tree depth
-trim | trim image edges
-type type | image type
-undercolor color | annotation bounding box color
-units type | the units of image resolution
-unsharp geometry | sharpen the image
-verbose | print detailed information about the image
-version | print version information
-view | FlashPix viewing transforms
-virtual-pixel method | access method for pixels outside the boundaries of the image
-wave geometry | alter an image along a sine wave
-weight type | render text with this font weight
-white-point point | chromaticity white point
-white-threshold value | forces all pixels above the threshold into white
-write filename | write images to this file

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