ppmqvga



PPMQVGA(1)                                                          PPMQVGA(1)




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 report-
       ing.


LIMITATIONS

       none known.


AUTHOR

       Original by Lyle Rains (lrains@netcom.com)  as  ppmq256  and  ppmq256fs
       combined,   documented,   and   enhanced   by   Bill  Davidsen  (david-
       sen@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.



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