1Ppmquant User Manual(0)                                Ppmquant User Manual(0)
2
3
4

NAME

6       ppmquant  - quantize the colors in a PPM image down to a specified num‐
7       ber
8
9

SYNOPSIS

11       ppmquant   [-floyd|-fs]   ncolors   [ppmfile]   ppmquant   [-floyd|-fs]
12       [-nofloyd|-nofs] -mapfile mapfile [ppmfile]
13
14       All  options  can  be abbreviated to their shortest unique prefix.  You
15       may use two hyphens instead of one to designate an option.  You may use
16       either  white  space  or  equals  signs  between an option name and its
17       value.
18
19
20

DESCRIPTION

22       This program is part of Netpbm(1).
23
24       ppmquant is obsolete.  All it does now is invoke pnmquant or  pnmremap.
25       You  should use one of those programs in any new program, or if you are
26       modifying an old program, and your program does not have to work with a
27       version of Netpbm before 9.21 (January 2001).  ppmquant exists only for
28       name compatibility.
29
30       pnmquant is fully backward compatible with ppmquant without  the  -map‐
31       file  option;  pnmremap is fully backward compatible with ppmquant with
32       the -mapfile option.
33
34       Except  with  differences  suggested  by  the  syntax  synopsis  above,
35       ppmquant's function is the same as pnmquant and pnmremap.
36
37       Before Netpbm 10.19 (November 2003), ppmquant was a completely separate
38       program from pnmquant, and was a bona fide PPM program.  That means  if
39       you  gave  it a PGM or PBM image as input, it would process it as if it
40       were PPM and generate a PPM output.  Now, since it is really a PNM pro‐
41       gram, it processes PBM and PGM inputs as what they are and produces the
42       same kind of output.
43
44       Note: The reason ppmquant was changed in Netpbm 10.19 is that for  some
45       time  before that, ppmquant had a serious bug that would have been dif‐
46       ficult to fix -- it chose the wrong color set.   Maintaining  two  ver‐
47       sions of the same code did not make sense.
48
49

SEE ALSO

51       pnmquant(1), pnmremap(1), pnmcolormap(1), pamseq(1), ppm(1)
52
53

AUTHOR

55       Copyright (C) 1989, 1991 by Jef Poskanzer.
56

DOCUMENT SOURCE

58       This  manual  page was generated by the Netpbm tool 'makeman' from HTML
59       source.  The master documentation is at
60
61              http://netpbm.sourceforge.net/doc/ppmquant.html
62
63netpbm documentation            22 October 2003        Ppmquant User Manual(0)
Impressum