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<!doctype HTML public "-//W3O//DTD W3 HTML 2.0//EN">
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<TITLE>gifclrmp</TITLE>
<link rev=made href=mailto:esr@snark.thyrsus.com>
</HEAD>
<BODY>
Go to <a href="index.html">index page</a>.
<CENTER><H1>gifclrmp</H1></CENTER>
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.<P>
<H1>Usage:</H1>
<pre>
gifclrmap [-q] [-s] [-t trans] [-l map] [-g Gamma] [-i image] [-h] gif-file
</pre>
If no gif-file is given, GifClip will try to read a GIF file from stdin.<P>
<H1>Memory required:</H1>
Line.
<H1>Options:</H1>
<DL>
<DT> [-q]
<DD> Quiet mode. Defaults off on MSDOS, on under UNIX. Controls printout
of running scan lines. Use -q- to invert.<P>
<DT> [-s]
<DD> Select the global screen color map.<P>
<DT> [-l map]
<DD> Load color map from this file instead of selected color map.<P>
<DT> [-t trans]
<DD> 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.<P>
<DT> [-g Gamma]
<DD> Apply gamma correction to selected color map.<P>
<DT>[-i image]
<DD> Select the color map of the numbered image.<P>
<DT>[-h]
<DD> Print one command line help, similar to Usage above.<P>
</DL>
<H1>Notes:</H1>
<UL>
<LI>
The default operation is to dump out the selected color map in text
format.<P>
<LI>
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.<P>
</UL>
<H1>Author:</H1>
Gershon Elber
<HR>
<ADDRESS>Eric S. Raymond <A HREF="mailto:esr@thyrsus.com"><esr@snark.thyrsus.com></A></ADDRESS>
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