DragonFly On-Line Manual Pages

RLEDITHER(1)           DragonFly General Commands Manual          RLEDITHER(1)

NAME
       rledither - Floyd Steinberg dither an image to the given colors.

SYNOPSIS
       rledither [ -e edge_factor ] [ -l nchan length ] -{tf} mapfile [ -o
       outfile ] [ infile ]

DESCRIPTION
       This program accepts an RLE(5) file and a file of colormap entries, and
       dithers the image to those colors.  Edge enhancement is also performed,
       if specified.

OPTIONS
       -e edge_factor
              An edge_factor of zero means no edge enhancement (the default).
              A value of 1.0 looks pretty good for most images.

       -l nchan length
              Specifies the number of channels in the colormap, and the number
              of entries in each channel.  The default is 3 channels of 256
              entries, which is appropriate for an eight bit color display.

       -{tf} mapfile
              The mapfile must contain at least nchan*length values in the
              range 0 to 255.  The -t flag causes mapfile to be read as R G B
              R G B R G B...  The -f flag implies the entries are listed as R
              R R... G G G... B B B...

       -o outfile
              If specified, the output will be written to this file.  If
              outfile is "-", or if it is not specified, the output will be
              written to the standard output stream.

       infile The input will be read from this file.  If infile is "-" or is
              not specified, the input will be read from the standard input
              stream.

SEE ALSO
       mcut(1), rlehdr(1), rlequant(1), urt(1), RLE(5).

AUTHOR
       Rod G. Bogart, University of Michigan

BUGS
       It should read colormaps from RLE files, too.  For the moment, edit the
       output from rlehdr -m.

4th Berkeley Distribution       Month DD, YYYY                    RLEDITHER(1)