ppmtogif

Section: User Commands (1)
Updated: 30 June 1993
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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.

AUTHOR

Based on GIFENCOD by David Rowley <mgardi@watdcsu.waterloo.edu>. Lempel-Ziv compression based on "compress".

This document was created by man2html, using the manual pages.
Time: 23:53:56 GMT, February 15, 2023