gifclrmp man page on Alpinelinux

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GIFCLRMP(1)		     GIFLIB Documentation		   GIFCLRMP(1)

NAME
       gifclrmp - extract colormaps from GIF images

SYNOPSIS
       gifclrmp [-v] [-s] [-l mapfile] [-t trans] [-g gamma] [-i image] [-h]
		[gif-file]

DESCRIPTION
       A program to modify GIF image colormaps. Any local colormap in a GIF
       file can be modified at a time, or the global screen one.

OPTIONS
       -v
	   Verbose mode (show progress). Enables printout of running scan
	   lines.

       -s
	   Select the global screen color map.

       -l mapfile
	   Load color map from this file instead of selected color map.

       -t trans
	   Change color index values. The change is made to both the selected
	   color table and the raster bits of the selected image. A
	   translation file is a list of pairs of `before' and `after' index
	   values. At present, the `before' index values must be in ascending
	   order starting from 0.

       -g gamma
	   Apply gamma correction to selected color map.

       -i image
	   Select the color map of the numbered image.

       -h
	   Print one command line help, similar to Usage above.

       If no GIF file is given, gifclip will try to read a GIF file from
       stdin.

NOTES
       ·   The default operation is to dump out the selected color map in text
	   format.

       ·   The file to load/dump is simply one color map entry per line. Each
	   such entry line has four integers: "ColorIndex Red Green Blue",
	   where color index is in ascending order starting from 1.

AUTHOR
       Gershon Elber.

GIFLIB				  2 May 2012			   GIFCLRMP(1)
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