pgmtopbm

   Updated: 20 June 2004
   Table Of Contents

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.

   This	 program  is obsolete since Netpbm 10.23 (July 2004). Use
pamditherbw 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
   proportional	 to light intensity, but they are actually gamma-
adjusted.

   pamditherbw is backward compatible with pgmtopbm  except  that
it does the
   correct gamma adjustments.

UNIX/Linux commands referenced on this page:

1. convert
2. as
3. pamditherbw