fstopgm(1) [xfree86 man page]

fstopgm(1)						      General Commands Manual							fstopgm(1)

NAME

       fstopgm - convert a Usenix FaceSaver(tm) file into a portable graymap

SYNOPSIS

       fstopgm [fsfile]

DESCRIPTION

       Reads a Usenix FaceSaver(tm) file as input.  Produces a portable graymap 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 pnmscale 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 pnmscale.  Then use one of the following pipelines:
	 fstopgm | pgmnorm
	 fstopgm | pnmscale -whatever | pgmnorm
       To go to PBM, you want something more like one of these:
	 fstopgm | pnmenlarge 3 | pgmnorm | pgmtopbm
	 fstopgm | pnmenlarge 3 | pnmscale <whatever> | pgmnorm | pgmtopbm
       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(5), pgmnorm(1), pnmenlarge(1), pnmscale(1), pgmtopbm(1)

AUTHOR

       Copyright (C) 1989 by Jef Poskanzer.

								    06 April 89 							fstopgm(1)

fstopgm(1)                                                    General Commands Manual                                                   fstopgm(1)

NAME

       fstopgm - convert a Usenix FaceSaver(tm) file into a portable graymap

SYNOPSIS

       fstopgm [fsfile]

DESCRIPTION

       Reads a Usenix FaceSaver(tm) file as input.  Produces a portable graymap 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 pnmscale 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 pnmscale.  Then use one of the following pipelines:
         fstopgm | pgmnorm
         fstopgm | pnmscale -whatever | pgmnorm
       To go to PBM, you want something more like one of these:
         fstopgm | pnmenlarge 3 | pgmnorm | pgmtopbm
         fstopgm | pnmenlarge 3 | pnmscale <whatever> | pgmnorm | pgmtopbm
       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(5), pgmnorm(1), pnmenlarge(1), pnmscale(1), pgmtopbm(1)

AUTHOR

       Copyright (C) 1989 by Jef Poskanzer.

                                                                    06 April 89                                                         fstopgm(1)