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ppmtomap(1)							   ppmtomap(1)

NAME
       ppmtomap - extract all colors from a portable pixmap

SYNOPSIS
       ppmtomap [-sort] [-square] [ppmfile]

DESCRIPTION
       Reads  a	 portable pixmap as input.  Produces a portable pixmap as out‐
       put, representing a color map of the input file. All N different colors
       found  are  put	in an Nx1 portable pixmap.  This color map file can be
       used as a mapfile for ppmquant or ppmtogif.

OPTIONS
       -sort  Produces a portable pixmap with the colors in some sorted order.

       -square
	      Produces a (more or less) square output file, instead of putting
	      all colors on the top row.

       All flags can be abbreviated to their shortest unique prefix.

WARNING
       If you want to use the output file as a mapfile for ppmtogif, you first
       have to do a ppmquant 256, since ppmtomap is not limited to 256	colors
       (but to 65536).

SEE ALSO
       ppmtogif(1), ppmquant(1), ppm(5)

AUTHOR
       Marcel Wijkstra (wijkstra@fwi.uva.nl).

       Copyright (C) 1989 by Jef Poskanzer.

				11 August 1993			   ppmtomap(1)

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