Man Pages

pnmquant(1) - phpMan pnmquant(1) - phpMan

Command: man perldoc info search(apropos)  


Pnmquant User Manual(0)                                Pnmquant User Manual(0)



NAME
       pnmquant - quantize the colors in a Netpbm image to a smaller set


SYNOPSIS
       pnmquant  [-center|-meancolor|-meanpixel]  [-floyd|-fs]  [-nofloyd|-nofs] [-spreadbrightness|-spreadluminosity]
       ncolors [pnmfile]


DESCRIPTION
       This program is part of Netpbm(1).

       pnmquant reads a PNM image as input.  It chooses ncolors colors to best represent the image, maps the  existing
       colors to the new ones, and writes a PNM image as output.

       All options can be abbreviated to their shortest unique prefix.  You may use two hyphens instead of one to des-
       ignate an option.  You may use either white space or equals signs between an option name and its value.

       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 pnmquant.

       It is much faster to call pnmcolormap and pnmremap directly than to run pnmquant.  You save the overhead of the
       Perl interpreter and creating two extra processes.  pnmquant is just a convenience.

       pnmquant  did  not exist before Netpbm 9.21 (January 2001).  Before that, ppmquant did the same thing, but only
       on PPM images.  ppmquant continues to exist, but is only a front end (for name compatibility) to pnmquant.


SEE ALSO
       pnmcolormap(1), pnmremap(1), ppmquantall(1), pamdepth(1), ppmdither(1), ppmquant(1), pnm(1)



netpbm documentation            22 October 2003        Pnmquant User Manual(0)