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ppmdim.1
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1996-11-18
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.TH ppmdim 1 "16 November 1993"
.IX ppmdim
.SH NAME
ppmdim - dim a portable pixmap down to total blackness
.SH SYNOPSIS
ppmdim
.I dimfactor
.RI [ ppmfile ]
.SH DESCRIPTION
Reads a portable pixmap as input. Diminishes its brightness by
the specified dimfactor down to total blackness.
The dimfactor may be in the range from 0.0 (total blackness,
deep night, nada, null, nothing) to 1.0 (original picture's
brightness).
.PP
As
.I pnmgamma
does not do the brightness correction in the way I
wanted it, this small program was written.
.PP
ppmdim is similar to
.I ppmbrighten
, but not exactly the same.
.SH SEE ALSO
ppm(5), ppmflash(1), pnmgamma(1), ppmbrighten(1)
.SH AUTHOR
Copyright (C) 1993 by Frank Neumann
.\" 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.