ppmqvga - 8 plane quantization
ppmqvga [ options? [ input file?
ppmqvga quantizes PPM files to 8 planes, with
optional Floyd-Steinberg dithering. Input is a PPM file from
the file named, or standard input of no file is
-d dither. Apply Floyd-Steinberg dithering to the
-q quiet. Produces no progress reporting, and no
terminal output unless and error occurs.
-v verbose. Produces additional output describing the
number of colors found, and some information on the
resulting mapping. May be repeated to generate loads of
internal table output, but generally only useful
ppmqvga -d my_image.ppm | ppmtogif
tgatoppm zombie.tga | ppmqvga | ppmtotif
Error messages if problems, various levels of optional
Original by Lyle Rains (email@example.com) as ppmq256 and
ppmq256fs combined, documented, and enhanced by Bill
Copyright 1991,1992 by Bill Davidsen, all rights reserved.
The program and documentation may be freely distributed by
anyone in source or binary format. Please clearly note any