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Philippe Troin
<webmaster@fifi.org>.

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Manpage of ppmtomap

ppmtomap

Section: User Commands (1)
Updated: 11 August 1993
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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 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.

 

Index

NAME
SYNOPSIS
DESCRIPTION
OPTIONS
WARNING
SEE ALSO
AUTHOR
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Time: 06:08:31 GMT, April 20, 2024