IMCOMBINE PATCH
			  May 18, 1998

The tar file "imcombpatch.tar" contains revised source code to be
applied to V2.11 and V2.11.1.  The revisions include:

1. an option to produce a pixel mask identifying which pixels in each
input image are rejected or excluded.

2. an option to apply a 2D circular growing radius around each rejected
pixel

3. a couple of bug fixes


INSTALLATION

To apply to an IRAF system you must have permission to modify the system.

1. Unpack the tar file starting from iraf$images/immatch.

	cl> cd immatch
	cl> rtar xf imcombpatch.tar

2. Configure the system to compile and link for the specific architecture
of the machine you are on.  For example, for Solaris:

	cl> cd iraf
	cl> mkpkg ssun

3. Compile, link, and install the revisions.

	cl> cd images
	cl> mkpkg relink
	cl> mkpkg install

4. If desired, reset the system to the "generic" architecture configuration.

	cl> cd iraf
	cl> mkpkg generic