DragonFly On-Line Manual Pages

APPLYMAP(1)            DragonFly General Commands Manual           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.

4th Berkeley Distribution      November 12, 1986                   APPLYMAP(1)