Convert a gem .img file into a portable anymap
gemtopnm [-d] [gemfile]
Reads a GEM .img file, either the one plane (black/white) or four plane (16 color) varieety, as input. Reads from stdin if input file is omitted. Produces a PBM or PPM file as output, depending on whether the input is one or four plane.
-d
Produce output describing the contents of the .img file.
Copyright (C) 1988 Diomidis D. Spinellis ([email protected]).