saturmod
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Name
saturmod - modify saturation in color map file
Syntax
saturmod [<option>] <infile> <outfile>
Description
Reads and modifies a colormap file. See mct(1) for
description of the color map file.
Each set of (r,g,b) is converted to (i,h,s).
The s (saturation) is modified.
"-" or "-0" can be given for infile to mean stdin.
"-" or "-1" can be given for outfile to mean stdout.
Options
Use only one of -f or -s.
-
-f factor
- factor must be >=0. The saturation will be changed like this:
s_new = 65535 - (65536 - s_old)/factor
-
-s saturation
- saturation must fulfull 0.0 <= saturation <= 1.0.
The saturation will be changed like this:
s_new = saturation * 65535.
Default: factor = 2.0.
See also
mct(1), rainbow(1), ihs(3), color2ascii(1)
Author
Otto Milvang
Revised
Svein Bøe
Examples
saturmod -s 0.8 mycol.map | mct > mycol.col
Id
$Id: saturmod.c,v 1.22 1997/02/11 15:22:43 svein Exp $