Penguin

g3topbm

g3topbm

NAME SYNOPSIS DESCRIPTION OPTIONS REFERENCES BUGS SEE ALSO AUTHOR


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 ''

-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


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