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Image denoising using non linear diffusion tensors

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2 Author(s)
Benzarti Faouzi ; Signal, Image Processing and Pattern Recognition: TSIRF (ENIT) ; Hamid Amiri

Image denoising is an important pre-processing step for many image analysis and computer vision system. It refers to the task of recovering a good estimate of the true image from a degraded observation without altering and changing useful structure in the image such as discontinuities and edges. In this paper, we propose a new approach for image denoising based on the combination of two non linear diffusion tensors. One allows diffusion along the orientation of greatest coherences, while the other allows diffusion along orthogonal directions. The idea is to track perfectly the local geometry of the degraded image and applying anisotropie diffusion mainly along the preferred structure direction. To illustrate the effective performance of our model, we present some experimental results on a test and real photographic color images.

Published in:

Systems, Signals and Devices (SSD), 2011 8th International Multi-Conference on

Date of Conference:

22-25 March 2011