Short Communication
Computer Science

Numerical simulation of modified Perona–Malik equantion in digital image denoising applications.

A. A. Yudashkin^a, D. A. Zausaev^b, I. S. Ryabtsov<sup>c

a</sup> Dept. of Automation and Control in Technical Systems, Samara State Technical University, Samara
^b Dept. of Applied Mathematics and Computer Science, Samara State Technical University, Samara
^c Dept. of Functional Analysis and Function Theory, Samara State University, Samara

Abstract: Classical Perona–Malik model is modified and adapted for digital color image filtering. An advantage of the proposed scheme is the use of perceptual color difference metrics to measure the distance between pixels, and the modification of diffusion coefficients calculation formulas. Numerical simulation shows that the proposed scheme has a high quality and performance.

Keywords: partial differential equations, Perona–Malik equation, image processing, image denoising.

UDC: 519.63:004.932

MSC: Primary 68U10; Secondary 49M25

Original article submitted 14/VIII/2011
revision submitted – 14/XI/2011

DOI: 10.14498/vsgtu1026

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