ppmtogif (1)
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.
GIF
OPTIONS
-interlace
Tells the program to produce an interlaced GIF file.
-sort
Produces a GIF file with a sorted color map.
-map
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 \fIcolor\fP
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
AUTHOR
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