APPLYMAP(1) 1 (Nov 12, 1986) APPLYMAP(1)
NAME
applymap - Apply the color map in an RLE file to the pixel
data
SYNOPSIS
applymap [ -l ] [ -o outfile ] [ infile ]
DESCRIPTION
This program takes the color map in an RLE(5) file and
modifies the pixel values by applying the color map to them.
If there is more than one color channel in the input file,
the color map in the input file should have the same number
of channels. If the input file has a single color channel,
the output file will have the same number of color channels
as the color map.
Each pixel in the input file is mapped as follows: For a
multi-channel input file, a pixel in channel i is mapped as
map[i][pixel] >> 8, producing a pixel in output channel i.
The right shift takes the 16 bit color map value to an 8 bit
pixel value. For a single channel input file, to produce a
pixel in output channel i is produced from the corresponding
input pixel value as map[i][pixel] >> 8.
OPTIONS
-l This option will cause a linear (identity) color map to
be loaded into the output file. Otherwise, the output
file will have no color map.
infile
The input will be read from this file, otherwise, input
will be taken from stdin.
-o outfile
If specified, output will be written to this file,
otherwise it will go to stdout.
SEE ALSO
rleldmap(1), urt(1), RLE(5).
AUTHOR
Spencer W. Thomas, University of Utah
BUGS
If the image data and color map channels in the input file
do not conform to the restriction stated above (N->N or
1->N) the program will most likely core dump.
Page 1 (printed 12/1/98)
