UNSLICE(1)UNSLICE(1)NAMEunslice - Quickly assemble image slices
SYNOPSISunslice [ -f ctlfile ] [ -y ymax ] [ -o outfile ] infiles ...
DESCRIPTION
Unslice quickly assembles a number of horizontal image strips into a
single output image. A typical use for unslice is to put together por‐
tions of an image ("slices") computed independently into a single out‐
put picture. Because unslice uses the "raw" RLE library calls to read
and write the images, it runs much faster than doing the equivalent
operations with crop and comp.
unslice has two modes of operation. If given the -f flag, unslice
reads a control file telling it how to assemble the images. This is a
text file with two decimal numbers on each line, one line for each
slice to be assembled into the output image. Each line gives the
starting and stopping scanlines (inclusive) for each slice. These must
be in ascending order. This is useful if the slices have excess image
area that should be cropped away.
If no control file is given, the -y flag is used. This tells unslice
what the maximum Y value of the output image is. Unslice reads the
files in order, using the RLE headers to determine where to place the
slices. If two slices overlap, the first scanlines from the second
slice are thrown away. In both cases, the slices must be in ascending
order, and are expected to be of uniform width.
SEE ALSOcrop(1), rlecomp(1), rlepatch(1), repos(1), urt(1), RLE(5).
AUTHOR
John W. Peterson
BUGS
Unslice has really been superceded by rlepatch(1).
4th Berkeley Distribution May 21, 1987 UNSLICE(1)
