1Fstopgm User Manual(0)                                  Fstopgm User Manual(0)
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NAME

6       fstopgm - convert a Usenix FaceSaver(tm) file into a PGM image
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SYNOPSIS

11       fstopgm [fsfile]
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DESCRIPTION

15       This program is part of Netpbm(1).
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17       fstopgm  reads  a Usenix FaceSaver(tm) file as input and produces a PGM
18       image as output.
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20       FaceSaver(tm) files sometimes have rectangular pixels.   While  fstopgm
21       won't  re-scale  them  into square pixels for you, it will give you the
22       precise pamscale command that will do the job.  Because of this,  read‐
23       ing a FaceSaver(tm) image is a two-step process.  First you do:
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25         fstopgm > /dev/null
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27       This will tell you whether you need to use pamscale.
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29       Then use one of the following pipelines:
30         fstopgm | pnmnorm
31         fstopgm | pamscale -whatever | pnmnorm
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33       To go to PBM, you want something more like one of these:
34         fstopgm | pamenlarge 3 | pnmnorm | pamditherbw
35         fstopgm | pamenlarge 3 | pamscale <whatever> | pnmnorm | pamditherbw
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37       You  want  to enlarge when going to a bitmap because otherwise you lose
38       information; but enlarging by more than 3 does not look good.
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40       FaceSaver is a registered trademark of Metron Computerware Ltd. of Oak‐
41       land, CA.
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OPTIONS

46       There are no command line options defined specifically for fstopgm, but
47       it recognizes the options common to all  programs  based  on  libnetpbm
48       (See
49        Common Options ⟨index.html#commonoptions⟩ .)
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SEE ALSO

53       pgmtofs(1),    pgm(1),    pnmnorm(1),    pamenlarge(1),    pamscale(1),
54       pamditherbw(1)
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AUTHOR

59       Copyright (C) 1989 by Jef Poskanzer.
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DOCUMENT SOURCE

62       This manual page was generated by the Netpbm tool 'makeman'  from  HTML
63       source.  The master documentation is at
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65              http://netpbm.sourceforge.net/doc/fstopgm.html
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67netpbm documentation              06 April 89           Fstopgm User Manual(0)
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