Convert a hips file into a portable graymap
hipstopgm [hipsfile]
Reads a HIPS file as input. Produces a portable graymap as output.
If the HIPS file contains more than one frame in sequence, hipstopgm will concatenate all the frames vertically.
HIPS is a format developed at the Human Information Processing Laboratory, NYU.
Copyright (C) 1989 by Jef Poskanzer.