Sgitopnm User Manual(0) Sgitopnm User Manual(0)
NAME
sgitopnm - convert a SGI image file to PNM
SYNOPSIS
sgitopnm
[-verbose]
[-channel c]
[SGIfile]
DESCRIPTION
This program is part of Netpbm(1).
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-dimen-
sional (3 or more channels) input file.
Alternatively, the program produces a PGM image of any one of the chan-
nels 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(1), pnmtosgi(1)
AUTHOR
Copyright (C) 1994 by Ingo Wilken (Ingo.Wilken@informatik.uni-olden-
burg.de)
netpbm documentation 29 Jul 2000 Sgitopnm User Manual(0)
