Implementation of Vector Directional Distance Rational Hybrid Filter Using TMS320C6416

 

Anis Boudabous1, Lazhar khriji2, and Nouri Masmoudi1
1Laboratory of Electronics and Information Technology, Tunisia
2Department of Electrical and Computer Engineering,  Sultan Qaboos University, Oman

Abstract: This paper proposes a novel digital signal processing implementation of vector directional distance rational hybrid filter for impulsive, Gaussian and mixed noise suppression and fine-details preservation in color images. The Implementation was done, initially, based on digital signal processing ,  which proves the need to a large execution time for filtering based on vector approach.  Then, we propose efficient optimizations and approximations of the main functions which have no influence on the filtered image quality. Indeed, we could increase the filtering speed compared to the initial vector directional distance rational hybrid filter implementation. Comparative studies of implemented vector directional distance rational hybrid filter with other nonlinear filters are reported. It demonstrates a good color image quality for different noise intensities. This efficient system implementation can perform well in several image processing applications.

Received July 3, 2008; accepted November 25, 2008