sgitopnm

   Updated: 29 Jul 2000
   Table Of Contents

NAME

   sgitopnm - convert a SGI image file to PNM

SYNOPSIS

   sgitopnm [-verbose] [-channel c] [SGIfile]

DESCRIPTION

   This program is part of Netpbm.

   sgitopnm  reads  an SGI image file as input and produces a PGM
image for a
   2-dimensional (1 channel) input file, and a PPM  image  for	a
3-dimensional (3
   or more channels) input file.

   Alternatively,  the program produces a PGM image of any one of
the channels
   in the input file.

OPTIONS

   -verbose
	  Give some information about the SGI image file.
   -channel c
	  Extract channel c of the image as a PGM image.  Without
this option,
	  sgitopnm  extracts  the first 3 channels as a PPM image
or, if the
	  input has only 1 channel, extracts that as a PGM image,
and if the
	  input has 2 channels, fails.



REFERENCES

   SGI	 Image	File  Format  documentation (draft v0.95) by Paul
Haeberli
   (paul@sgi.com). Available via ftp  at  sgi.com:graphics/SGIIM-
AGESPEC.

SEE ALSO

   pnm, pnmtosgi

AUTHOR

   Copyright (C) 1994 by Ingo Wilken (Ingo.Wilken@informatik.uni-
oldenburg.de)
     _________________________________________________________________



Table Of Contents

     * NAME
     * SYNOPSIS
     * DESCRIPTION
     * OPTIONS
     * REFERENCES
     * SEE ALSO
     * AUTHOR

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