RLEDITHER(1) 1 (Month DD, YYYY) 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.
Page 1 (printed 12/1/98)
