A new direction based adaptive filter for the restoration of impulse corrupted digital images

Abstract

A new directional filter for the restoration of random valued impulse noise is proposed by addressing the limitations of Directional Weighted Median Filter (DWMF) published by Yiqiu Dong et. al. (3). The proposed filter work better for all natural images with varied noise levels. The experimental results in terms of objective and subjective matrices show that the proposed filter work better for both images corrupted with higher or lower levels of noise while preserving the image details.