rlepatch man page on DigitalUNIX

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RLEPATCH(1)							   RLEPATCH(1)

NAME
       rlepatch - patch smaller RLE files over a larger image.

SYNOPSIS
       rlepatch [ -o outfile ] infile patchfiles...

DESCRIPTION
       Rlepatch	 puts smaller RLE files on top of a larger RLE image.  One use
       for rlepatch is to place small "fix" images on top of  a	 larger	 image
       that  took  a  long time to compute.  Along with repos(1), rlepatch can
       also be used as a simple way to build image mosaics.

       Unlike rlecomp(1), rlepatch does not perform any arithmetic on the pix‐
       els.   If  the  patch  images overlap, the patches specified last cover
       those specified first.

       If the input files each contain multiple images, they  are  treated  as
       streams of images merging to form a stream of output images.  I.e., the
       nth image in each input file becomes part of the nth image in the  out‐
       put  file.   The	 process  ceases as soon as any input file reaches its
       end.

OPTIONS
       infile The background image will be read from this file.	 If  input  is
	      to be taken from stdin, "-" must be specified here.

       -o outfile
	      If  specified, output will be written to this file, otherwise it
	      will go to stdout.

SEE ALSO
       rlecomp(1), crop(1), repos(1), urt(1), RLE(5).

AUTHOR
       John W. Peterson, University of Utah.

BUGS
       Rlepatch uses the "row" interface to the RLE  library.	It  would  run
       much  faster  using the "raw" interface, particularly for placing small
       patches over a large image.   Even  fixing  it  to  work	 like  rlecomp
       (which  uses  "raw"  mode only for non-overlapping images) would make a
       major improvement.

4th Berkeley Distribution	  Nov 8, 1987			   RLEPATCH(1)
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