ppmtomap man page on BSDi

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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 output, 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 pre-
       fix.

WARNING
       If you want to use the output file as a mapfile	for  ppm-
       togif, 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			1

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