quantize the colors in a Netpbm image to a smaller set
see also :
pnmcolormap - pnmremap - ppmquantall - pnmdepth - ppmdither - ppmquant
All options can
be abbreviated to their shortest unique prefix. You may use
two hyphens instead of one to designate an option. You may
use either white space or equals signs between an option
name and its value.
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Reads a PNM
image as input. Chooses ncolors colors to best
represent the image, maps the existing colors to the new
ones, and writes a PNM image as output.
This program is
simply a combination of pnmcolormap and
pnmremap, where the colors of the input are remapped
using a color map which is generated from the colors in that
same input. The options have the same meaning as in those
programs. See their documentation to understand
It is much
faster to call pnmcolormap and pnmremap
directly than to run pnmquant. pnmquant is
just a convenience.
is an older program which does the same thing as
pnmquant, but on only PPM images. It is, however,
faster than either pnmquant or
pnmremap , ppmquant all"> ppmquantall ,
pnmdepth , ppmdither , ppmquant,