ppmbrighten (1)
change an images Saturation and Value from an HSV map
SYNOPSIS
ppmbrighten [-n] [-s <+- saturation>] [-v <+- value>] <ppmfile>
DESCRIPTION
SEE ALSO
AUTHOR
Copyright (C) 1990 by Brian Moffet
Copyright (C) 1989 by Jef Poskanzer.
Permission to use, copy, modify, and distribute this software and its
documentation for any purpose and without fee is hereby granted, provided
that the above copyright notice appear in all copies and that both that
copyright notice and this permission notice appear in supporting
documentation. This software is provided "as is" without express or
implied warranty.
NOTES
This program does not change the number of colors.
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