sgitopnm

sgitopnm(1)                 General Commands Manual                sgitopnm(1)

NAME
       sgitopnm - convert a SGI image file to a portable anymap

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 op-
              tion,  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)