Image denoising using sparse and over complete representations

Abstract

An image is corrupted by noise during its acquisition transmission or storage Noise degrades the image quality and interpretability The aim of image denoising is to remove the distortion resulted by the noise while keeping the detail features in the image intact The sparse denoising methods represent a class of denoising algorithms based on the principle that a natural signal like the image is sparse over some basis set but the noise is not This has led to the widespread application of thes