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From: izahi@portia.Stanford.EDU (Raul Izahi Lopez Hernandez)
Newsgroups: comp.graphics
Subject: Filtering using local neighborhood
Keywords: Filtering Image Processing
Message-ID: <9769@portia.Stanford.EDU>
Date: 4 Mar 90 22:51:03 GMT
Sender: Raul Izahi Lopez Hernandez <izahi@portia.stanford.edu>
Organization: Stanford University
Lines: 12

I know it is possible to do low-pass or high-pass filtering by using the
center value and neighboring pixels of an image. But, how are:
	1. Number of pixels.
	2. Shape of neighborhood.
	3. Weighting of neighbors.
	4. Operations between pixels.
related to filtering parameters such as slope (dB/Octave or dB/Decade)
and center frequency?
   I'm looking for mathematical tools that support empirical work in
image processing for my Thesis. Any help would be appreciated.
				RAUL IZAHI LOPEZ
				izahi@portia.stanford.edu