BRIGHTNESS PRESERVING CONTRAST ENHANCEMENT USING ADAPTIVE GAMMA CORRECTION

Abstract

Nowadays image processing has become a prerequisite in most of the major applications such as surveillance, remote sensing, navigation, medical science, human identification, radiography, forensics etc. Different image processing techniques deployed in different applications help to find particular features and analyze the image for specific purposes. There is a wide domain of such techniques used specifically. One of the major areas of image processing is contrast enhancement in which intensities of image are distributed over the entire range of intensities in proportional to original image so as to achieve maximum contrast. There are various methods proposed and analyzed in this field such as histogram equalization, BBHE, MMBEBHE, RSIHE etc. The proposed approach achieves contrast enhancement thereby restoring maximum brightness and content of an image. Results show a visually better image and are compared with other algorithms using image evaluation parameters.