.TH pnmdim 1 "27 November 1999"
.IX pnmdim
.SH NAME
pnmdim - dim a portable anymap down to total blackness
.SH SYNOPSIS
pnmdim
.I dimfactor
.RI [ pnmfile ]
.SH DESCRIPTION
Reads a portable anymap 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
pnmdim is similar to
.I ppmbrighten
, but not exactly the same.
.SH SEE ALSO
pnmflash(1), pnmgamma(1), ppmbrighten(1), pbmplus(1)
.SH AUTHOR
Copyright (C) 1993, 1999 by Frank Neumann and Jef Poskanzer
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