A Review: Contrast Enhancement Methods

Abstract: Information extracted from the images used in modern image processing application is crucial for processing and for post processing decisions. Hence it is important for the information to be true. Images captured under bad weather conditions tend to lose information regarding the color and contrast. A lot of work has been carried out for clearance of unwanted optical factors from images under adverse weather in terms of its color. This work is aimed at studying the effect of fog on the contrast of the images captured in fog conditions. The aim is to study different methods for the restoration of contrast in images. It gives a better understanding of these methods for appropriate use.

Keywords: Image Processing, Fog, Air light, Contrast Enhancement.