g3topbm - convert a Group 3 fax file into a portable bitmap
g3topbm [__-kludge__? [__-reversebits__?
Reads a Group 3 fax file as input. Produces a portable
bitmap as output.
Tells g3topbm to ignore the first few lines of the
file; sometimes fax files have some junk at the
Tells g3topbm to interpret bits least-significant
first, instead of the default most-significant first.
Apparently some fax modems do it one way and others do it
the other way. If you get a whole bunch of
Tells g3topbm to stretch the image vertically by
duplicating each row. This is for the low-quality
All flags can be abbreviated to their shortest unique
The standard for Group 3 fax is defined in CCITT
Copyright (C) 1989 by Paul Haeberli