README for pnmaddnoise 1.0

pnmaddnoise is a pbmplus/netpbm program that adds one of the following types 
of noise to an image.

	gaussian
	multiplicative gaussian
	impulse
	laplacian
	poisson

This was written partly to generate noisy images to test the median filter 
I was working on.  I found many descriptions of noise, but not too many
descriptions of how to add noise to an image, so it is quite possible this
doesn't implement the noise in the best fashion, but the resultant images
certainly do have noise in them.

Installation
------------
Copy the files to your {pbmplus|netpbm}/pnm directory and modify the 
Imakefile to include pnmaddnoise in MAN1, SRCS, OBJS, BINS and add the
target line

NormalPbmplusMathProgramTarget(pnmaddnoise)

Then run xmkmf and make.

- Mike

----------------------------------------------------------------------------
Mike Burns                                                UNIX Systems Group 
burns@cac.psu.edu                              Center for Academic Computing 
(814) 863-5606                             The Pennsylvania State University