NAME
ppmqvga - 8 plane quantization
SYNOPSIS
ppmqvga [ options ] [ input file ]
DESCRIPTION
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 provided.
Options
-d dither. Apply Floyd-Steinberg dithering
to the data
-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 once.
EXAMPLES
ppmqvga -d my_image.ppm | ppmtogif
>my_image.gif
tgatoppm zombie.tga | ppmqvga | ppmtotif > zombie.tif
SEE ALSO
ppmquant
DIAGNOSTICS
Error messages if problems, various levels of
optional progress reporting.
LIMITATIONS
none known.
AUTHOR
Original by Lyle Rains (lrains@netcom.com) as ppmq256 and
ppmq256fs combined, documented, and enhanced by Bill Davidsen
(davidsen@crd.ge.com)
Copyright
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
changes.