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| RLEPATCH(1) | FreeBSD General Commands Manual | 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 pixels. 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 output 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.| November 8, 1987 | 4th Berkeley Distribution |
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