fstopgm

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Az fstopgm linux parancs manual oldala és súgója.

 

 

Man oldal kimenet

man fstopgm
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)

 

 

Súgó kimenet

fstopgm --help
fstopgm: Use 'man fstopgm' for help.

 

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