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1994-03-01
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g3topbm(1) AMIGA (02 October 1989) g3topbm(1)
NAME
g3topbm - convert a Group 3 fax file into a portable bitmap
SYNOPSIS
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>.
Page 1 (printed 3/1/94)