1Pnmscale User Manual(0)                                Pnmscale User Manual(0)
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NAME

6       pnmscale - scale a PNM image
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SYNOPSIS

9          pnmscale
10             [
11                scale_factor
12                |
13                -xysize cols rows
14                |
15                -reduce reduction_factor
16                |
17                [-xsize=cols | -width=cols | -xscale=factor]
18                [-ysize=rows | -height=rows | -yscale=factor]
19                |
20                -pixels n
21             ]
22             [-verbose]
23             [-nomix]
24             [pnmfile]
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DESCRIPTION

29       This program is part of Netpbm(1).
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31       pnmscale  was obsoleted by pamscale(1),introducedwithNetpbm10.20 (Janu‐
32       ary 2004).  pamscale is backward compatible with  pnmscale,  plus  adds
33       many additional functions, including the ability to process PAM images,
34       and tends to produce better results.
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36       pnmscale remains in the current Netpbm package because it probably  has
37       fewer  bugs  for  now  than pamscale, and may have superior performance
38       characteristics in some cases.  Some day, pnmscale will probably become
39       an alias for pamscale.
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41       You  can  use  the pamscale documentation for pnmscale, considering the
42       following differences:
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46       ·      pnmscale options are a subset of pamscale's, as
47                   documented above.
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49       ·      pnmscale always assumes the input is linear, as pamscale
50                   does when you specify its -linear option.
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52       ·      pnmscale cannot process PAM images.
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56netpbm documentation            25 January 2004        Pnmscale User Manual(0)