3 - An algorithm for filtering multiplicative noise in wide range

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URI: http://hdl.handle.net/2042/1599
Title: 3 - An algorithm for filtering multiplicative noise in wide range
Author: PING FAN YAN; CHEN (C. H.)
Abstract: Le filtre proposé est basé sur une combinaison du filtrage homomorphique et l'utilisation de la statistique locale. Le filtre est adaptatif au signal local et aux propriétés de bruit
Description: A new algorithm for filtering of multiplicative noise in image processing is considered . A triangular function is used to approximate the local probability density function of the image . Under this assumption the computation of necessary statistics is greatly simplified . An effective filtering algorithm for processing multiplicative noise is then developed. Experimental results show that the algorithm is effective in processing both small and large multiplicative noises. Also the computation and storage requirements are reasonable to implement in a minicomputer.
Subject: Traitement image; Traitement numérique; Filtrage numérique; Algorithme; Bruit multiplicatif; Image bruitée
Publisher: GRETSI, Saint Martin d'Hères, France
Date: 1986

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