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rlescale - produce gray scale images.
rlescale [ -c ] [ -n nsteps
] [ -o outfile ] [ xsize ] [ ysize ]
Rlescale produces an RLE
image containing a (more-or-less) standard gray scale image. Along the bottom
are 8 colored patches (in the standard primary and secondary colors). Above
these are a sequences of logarithmically scaled gray patches. By default,
a 16 step scale is produced. The size of the output file (default 512 by
480) can be set with the xsize and ysize arguments.
- -c
- Produce red,
green, blue, and gray scales.
- -n nsteps
- Specify the number of steps to be
produced.
urt(1)
, RLE(5)
.
Spencer W. Thomas, University of Michigan.
Can't make an image narrower than 3 * nsteps pixels wide.
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