GNU/Linux man pages
Livre :
Expressions régulières,
Syntaxe et mise en oeuvre :
GNU/Linux |
RedHat 6.2(Zoot) |
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ppmtogif(1) |
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ppmtogif - convert a portable pixmap into a GIF file
ppmtogif [-interlace] [-sort] [-map mapfile] [−transparent color] [ppmfile]
Reads a portable pixmap as input. Produces a GIF file as output.
-interlace
Tells the program to produce an interlaced GIF file.
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-sort |
Produces a GIF file with a sorted color map. |
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-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.
giftoppm(1), ppmquant(1), ppm(5)
Based on GIFENCOD by David Rowley <mgardi@watdcsu.waterloo.edu>. Lempel-Ziv compression based on "compress".
Copyright (C) 1989 by Jef Poskanzer.
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ppmtogif(1) | |