pgmnorm(1)

NAME

pgmnorm - histogram normalizes a greyscale image

SYNOPSIS

pgmnorm <infile> <outfile> <from> <to> [<yoffs> <xoffs> <ysize> <xsize>]

DESCRIPTION

pgmnorm opens infile, performs a histogram normalization on it and writes the result to outfile.

Optionally, the region to operate upon can be set to a rectangle inside the image by specifying yoffs (the image row offset), xoffs (the image column offset), ysize (the number of image rows) and xsize (the number of image columns).

NOTES

The pgmnorm utility is part of the Wavelet class library package. The version number refers to the whole package rather than to the utility.

Apart from PGM, pgmnorm may, if enabled, also be able to read PFI files.

BUGS

None known yet.

COPYRIGHT
Copyright (C) 2001-2003 Herbert

pgmnorm is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2, or (at your option) any later version.

pgmnorm is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

AUTHOR
Herbert Martin Dietze <herbert@spamcop.net>