sgitopnm (1) Linux Manual Page
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.