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 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-oldenburg.de)