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XV,
xv lets you do a large number of things (many of them actually useful), including, but not limited to, the
following:
, display an image in a window on the screen
, display an image on the root window, in a variety of styles
, grab any rectangular portion of the screen and turn it into an image
, arbitrarily stretch, compress, rotate or flip the image
, crop or pad images
, view files as ASCII text or hexadecimal data
, magnify any portion of the image by any amount, up to the size of the screen
, determine pixel values and x,y coordinates in the image
, adjust image brightness and contrast with a gamma correction function
, apply different gamma functions to the Red, Green, and Blue color components, to correct for
, non-linear color response
, adjust global image saturation
, perform global hue remapping
, perform histogram equalization
, run a number of image-processing algorithms on any rectangular portion of the image
, edit an image's colormap
, reduce the number of colors in an image
, dither in color and b/w
, crop off solid borders automatically
, convert image formats
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ImageMagick image display program can display an image on any workstation screen running an X server. It can read
and write many of the more popular image formats including JPEG, TIFF, PNM, GIF, and Photo CD. In addition you can
interactively resize, rotate, sharpen, color reduce, or add special effects to an image and save your completed work in the
same or differing image format.
In addition to the image display program, ImageMagick also has command line programs that perform these functions:
Convert an image from one format to another
Resize, rotate, sharpen, color reduce, or add special effects to an image
Create a framed thumbnail of an image
Create a transparent image suitable for use on the Web
Turn a group of images into a GIF animation sequence
Create a composite image by combining several separate images
Segment an image based on the color histogram
Describe the format and characteristics of an image
Retrieve, list, or print files from a remote network site
http://www.wizards.dupont.com/cristy/ImageMagick.html
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