Title: Gaussian noise reduction in greyscale images

Authors: Mike Nachtegael, Stefan Schulte, Dietrich Van Der Weken, Valerie De Witte, Etienne E. Kerre

Addresses: Ghent University, Department of Applied Mathematics and Computer Science, Krijgslaan 281 – S9, B-9000 Ghent, Belgium. ' Ghent University, Department of Applied Mathematics and Computer Science, Krijgslaan 281 – S9, B-9000 Ghent, Belgium. ' Ghent University, Department of Applied Mathematics and Computer Science, Krijgslaan 281 – S9, B-9000 Ghent, Belgium. ' Ghent University, Department of Applied Mathematics and Computer Science, Krijgslaan 281 – S9, B-9000 Ghent, Belgium. ' Ghent University, Department of Applied Mathematics and Computer Science, Krijgslaan 281 – S9, B-9000 Ghent, Belgium

Abstract: The reduction of noise in an image, considered as a goal itself or as a pre-processing step, is an important issue. Besides classical filters, a wide variety of fuzzy filters has been developed. These filters use techniques from fuzzy set theory, and have the ability to incorporate the uncertainty that is involved in noise detection. However, it is very difficult to judge the quality of these filters. The goal of our comparative study is to select those filters that have the best performance for Gaussian noise reduction, and to investigate whether the use of fuzzy techniques represents a substantial improvement.

Keywords: image processing; noise reduction; Gaussian noise; fuzzy logic; greyscale images; uncertainty; fuzzy filters.

DOI: 10.1504/IJISTA.2006.009905

International Journal of Intelligent Systems Technologies and Applications, 2006 Vol.1 No.3/4, pp.211 - 233

Published online: 01 Jun 2006 *

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