fstopgm(1) - phpMan

Fstopgm User Manual(0)                                                     Fstopgm User Manual(0)



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



SYNOPSIS
       fstopgm [fsfile]


DESCRIPTION
       This program is part of Netpbm(1).

       fstopgm reads a Usenix FaceSaver(tm) file as input and produces a PGM image as output.

       FaceSaver(tm)  files sometimes have rectangular pixels.  While fstopgm won't re-scale them
       into square pixels for you, it will give you the precise pamscale command that will do the
       job.  Because of this, reading a FaceSaver(tm) image is a two-step process.  First you do:

         fstopgm > /dev/null

       This will tell you whether you need to use pamscale.

       Then use one of the following pipelines:
         fstopgm | pnmnorm
         fstopgm | pamscale -whatever | pnmnorm

       To go to PBM, you want something more like one of these:
         fstopgm | pamenlarge 3 | pnmnorm | pamditherbw
         fstopgm | pamenlarge 3 | pamscale <whatever> | pnmnorm | pamditherbw

       You  want  to  enlarge  when going to a bitmap because otherwise you lose information; but
       enlarging by more than 3 does not look good.

       FaceSaver is a registered trademark of Metron Computerware Ltd. of Oakland, CA.



SEE ALSO
       pgmtofs(1), pgm(1), pnmnorm(1), pamenlarge(1), pamscale(1), pamditherbw(1)



AUTHOR
       Copyright (C) 1989 by Jef Poskanzer.

DOCUMENT SOURCE
       This manual page was generated by the Netpbm tool 'makeman' from HTML source.  The  master
       documentation is at

              http://netpbm.sourceforge.net/doc/fstopgm.html

netpbm documentation                       06 April 89                     Fstopgm User Manual(0)

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