x SuSE Linux 13.1-RELEASE x
x SuSE Linux 13.1-RELEASEx
Pgmtopbm User Manual(0) Pgmtopbm User Manual(0)
NAME
pgmtopbm - convert a PGM image to PBM
SYNOPSIS
pgmtopbm
[-floyd | -fs | -threshold | -hilbert | -dither8 | -d8 | -cluster3 |
-c3 | -cluster4 | -c4 | -cluster8 | -c8]
[-value val]
[-clump size]
[pgmfile]
DESCRIPTION
This program is part of Netpbm(1).
This program is obsolete since Netpbm 10.23 (July 2004). Use
pamditherbw(1) to do what this program used to do.
pgmtopbm never was the simple converter it appeared to be. It was a
dithering program. Unfortunately, it didn't do the dithering properly
because it treated the PGM input samples as if they were directly pro-
portional to light intensity, but they are actually gamma-adjusted.
pamditherbw is backward compatible with pgmtopbm except that it
o does the correct gamma adjustments.
o produces PAM output instead of PBM. (Modern Netpbm programs
that accept PBM input also accept PAM input, but if you need ac-
tual PBM, you can use pamtopbm with pamditherbw).
So use the manual for pamditherbw for pgmtopbm, except ignore
anything that says it was added after Netpbm Release 10.23 and
ignore any options that are not shown in the synopsis above.
If you just want to convert a PGM image with maxval 1 to PBM, use pam-
topnm(1)
DOCUMENT SOURCE
This manual page was generated by the Netpbm tool 'makeman' from HTML
source. The master documentation is at
http://netpbm.sourceforge.net/doc/pgmtopbm.html
netpbm documentation 20 June 2004 Pgmtopbm User Manual(0)
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