DragonFly On-Line Manual Pages

MERGECHAN(1)           DragonFly General Commands Manual          MERGECHAN(1)

NAME
       mergechan - merge channels from several RLE files into a single output
       stream

SYNOPSIS
       mergechan [ -a ] [ -o outfile ] infiles ...

DESCRIPTION
       Mergechan takes input from several RLE files and combines them into a
       single output stream.  Each channel in the output stream comes from the
       respective filename specified on the input (i.e., channel zero is taken
       from the first file, channel one from the next, etc).  The same file
       can be specified more than once.  If the -a flag is given, the channels
       are numbered from -1 (the alpha channel) instead of zero.  All of the
       input channels must have exactly the same dimensions (use crop(1) to
       adjust files to fit each other).

       Mergechan is typically used to introduce an alpha mask from another
       source into an image, or combine color channels digitized
       independently.

       If -o is specified, the output will be written to outfile.

SEE ALSO
       crop(1), rleswap(1), urt(1), RLE(5).

AUTHOR
       John W. Peterson, University of Utah.

BUGS
       Mergechan is totally ignorant of the color maps of the input files.

       The restriction that all input files must be the same size could
       probably be removed.

4th Berkeley Distribution      November 8, 1987                   MERGECHAN(1)