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RLEHISTO(1)							   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 indi‐
       cates 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  his‐
	      togram.	This  is  useful  if most pixels are colored the back‐
	      ground 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.

4th Berkeley Distribution	 June 25, 1990			   RLEHISTO(1)

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