Edge Patch Based Image Denoising Using Modifi...

Edge Patch Based Image Denoising Using Modified NLM Approach

Author Name : Rahul Kumar Dongardive, Ritu Shukla, Dr. Y K Jain

ABSTRACT  The modified technique of a Non Local Mean method (NLM) is proposed in this paper, i.e. by combining the Non Local Means approach with the transform domain. This technique is grounded on estimating the noise free image significantly and efficiently as compared with the existing method. Our main focus is on the preservation of edges during the Denoising process. Since the edges are the important feature of the image, hence we use edge preserving filters to preserve the edges so that it reduces the chances of discontinuity and distortion of edges efficiently. The performance of proposed approach is experimentally verified on a variety of images and noise levels. The results presented in this paper demonstrate that our proposed method is at par or exceeding the current state of the art, both visually and quantitatively.