g3topbm (1)
NAME
g3topbm - convert a Group 3 fax file into a portable bitmapSYNOPSIS
g3topbm [-kludge] [-reversebits] [-stretch] [g3file]DESCRIPTION
Reads a Group 3 fax file as input. Produces a portable bitmap as output.OPTIONS
- -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 "bad code word" messages, try using this flag.
- -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.
REFERENCES
The standard for Group 3 fax is defined in CCITT Recommendation T.4.BUGS
Probably.SEE ALSO
pbmtog3(1), pbm(5)AUTHOR
Copyright (C) 1989 by Paul Haeberli <paul@manray.sgi.com>.