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Amiga Format AFCD22 (Jan 1998, Issue 106).iso
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ppmtogif.man
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ppmtogif(1) AMIGA (30 June 1993) ppmtogif(1)
NAME
ppmtogif - convert a portable pixmap into a GIF file
SYNOPSIS
ppmtogif [-interlace] [-sort] [-map mapfile] [-transparent
color] [ppmfile]
DESCRIPTION
Reads a portable pixmap as input. Produces a GIF file as
output.
OPTIONS
-interlace
Tells the program to produce an interlaced GIF file.
-sort
Produces a GIF file with a sorted color map.
-map mapfile
Uses the colors found in the mapfile to create the
colormap in the GIF file, instead of the colors from
ppmfile. The mapfile can be any ppm file; all that
matters is the colors in it. If the colors in ppmfile
do not match those in mapfile , they are matched to a
"best match". A (much) better result can be obtained by
using the following filter in advance:
ppmquant -floyd -map mapfile
-transparent color
Mark the given color as transparent in the GIF file.
The color is specified as in ppmmake(1). Note that
this option outputs a GIF89a format file which might
not be understood by your software.
All flags can be abbreviated to their shortest unique
prefix.
SEE ALSO
giftoppm(1), ppmquant(1), ppm(5)
AUTHOR
Based on GIFENCOD by David Rowley
<mgardi@watdcsu.waterloo.edu>. Lempel-Ziv compression based
on "compress".
Copyright (C) 1989 by Jef Poskanzer.
Page 1 (printed 3/1/94)