ppmdim
dim a portable pixmap down to total blackness
see also :
ppmflash - pnmgamma - ppmbrighten
Synopsis
ppmdim
dimfactor [ppmfile]
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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).
As
pnmgamma does not do the brightness correction in the
way I wanted it, this small program was written.
ppmdim is
similar to ppmbrighten , but not exactly the
same.
see also
ppm,
ppmflash , pnmgamma , ppmbrighten
author
Copyright (C)
1993 by Frank Neumann