RLEHISTO(1) 1 (June 25, 1990) RLEHISTO(1)
NAME
rlehisto - generate histogram of RLE image.
SYNOPSIS
rlehisto [ -b ] [ -c ] [ -t ] [ -h height ] [ -o outfile ] [
infile ]
DESCRIPTION
Rlehisto counts the pixel values in an RLE file, producing
an RLE file graphing frequency of occurrence. The
horizontal axis runs from pixel value 0 on the left to pixel
value 255 on the right. The height indicates the number of
pixels seen for each pixel value. Histograms are computed
independently for each channel, scaled identically, and then
overlaid.
The following options are available:
-b Don't count the background pixel values when scaling
the histogram. This is useful if most pixels are
colored the background color, so that the interesting
part of the histogram would be too small. This option
is ignored if -c is specified.
-c Output cumulative values instead of discrete values.
-t Print the totals instead of generating the histogram as
an RLE file.
-h height Scale the output image to the specified height.
The default is 256.
-o outfile
Direct the output to outfile.
SEE ALSO
urt(1), RLE(5).
AUTHORS
Gregg Townsend, University of Arizona; Rod Bogart,
University of Utah.
Page 1 (printed 12/1/98)
