sgitopnm(1) - phpMan

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-dimensional (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  ex-
              tracts the first 3 channels as a PPM image or, if the input has only 1 channel, ex-
              tracts 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 AT sgi.com).  Avail-
       able via ftp at sgi.com:graphics/SGIIMAGESPEC.

SEE ALSO
       pnm(5), pnmtosgi(1)

AUTHOR
       Copyright (C) 1994 by Ingo Wilken (Ingo.Wilken AT informatik.de)

                                           29 Jul 2000                                sgitopnm(1)

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