A Moderate Histogram Equalization Method for Image Enhancement

The traditional histogram equalization and most of its variants usually suffer from different artifacts such as washed out appearance, checkerboard effect and unnatural look due to over or under enhancement of some parts of an image. We propose a moderate histogram equalization to enhance the contrast of the different parts of an image ensuring a soothing appearance with no severe side effect. Experimental results also advocate for the superiority of the proposed method over the other currently available variants of histogram equalization