sgitopnm


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

DESCRIPTION
       Reads  an SGI image file as input.  Produces a PGM image for a 2-dimen-
       sional (1 channel) input file, and a PPM image for a  3-dimensional  (3
       or more channels) input file.

       Alternatively,  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/SGIIMAGESPEC.


SEE ALSO
       pnm(5), pnmtosgi(1)


AUTHOR
       Copyright (C) 1994 by  Ingo  Wilken  (Ingo.Wilken@informatik.uni-olden-
       burg.de)




                                  29 Jul 2000                      sgitopnm(1)
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