g3topbm
NAME SYNOPSIS DESCRIPTION OPTIONS REFERENCES BUGS SEE ALSO AUTHOR
g3topbm - convert a Group 3 fax file into a portable bitmap
g3topbm [__-kludge__? [__-reversebits__? [__-stretch__? [''g3file''?
Reads a Group 3 fax file as input. Produces a portable bitmap as output.
-kludge
Tells g3topbm to ignore the first few lines of the file; sometimes fax files have some junk at the beginning.
-reversebits
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 ''
-stretch
Tells g3topbm to stretch the image vertically by duplicating each row. This is for the low-quality transmission mode.
All flags can be abbreviated to their shortest unique prefix.
The standard for Group 3 fax is defined in CCITT Recommendation T.4.
Probably.
Copyright (C) 1989 by Paul Haeberli
3 pages link to g3topbm(1):
