Xref: utzoo comp.dsp:1432 comp.graphics:16704
Newsgroups: comp.dsp,comp.graphics
Path: utzoo!utgpu!watserv1!sunee!rchann
From: rchann@sunee.waterloo.edu (Robert Chann)
Subject: Mean Value Filter
Message-ID: <1991Mar20.003425.14767@sunee.waterloo.edu>
Keywords: image processing, filter
Organization: University of Waterloo
Date: Wed, 20 Mar 1991 00:34:25 GMT
Lines: 22

Hi,

I'm trying to implement a mean value filter.  That is, using an nxn
window, each picture element is substituted by the mean value of the 
(nxn) neighbouring picture elements.

Apparently, by using a "sophisticated" implementation, no more than
approximately two additions per pel are required for the filtering.
The number of addition is nearly independent of the filter window
size and no multiplication is necessary.

Does anyone know how this "sophisticated" implementation work?

Thank you all in advance!

Robert Chann
(rchann@sunee.waterloo.edu)
-- 
Thank you for your attention.  Have a nice day!
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Robert Chann                                 E-mail:  rchann@sunee.waterloo.edu
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