A Comparative Analysis on Histogram Equalization Techniques for Medical Image Enhancement

Abstract

Image enhancement (IE) is such technique which makes the processing on image in order to increase its effectiveness for computer to process. Enhancement is, used for improvement of the visual effects and the clarity of image.Medical image is used as the important information and basis for the clinical diagnosis, while its quality digressed because of the interferences caused by the human body structure, equipment's, and environmental factors. In this paper review, the enhancement of medical images using efficient algorithms based on HE techniques. Also evaluate the result of medical image on technique to histogram equalization (HE), adaptive histogram equalization (AHE), (BBHE) and contrast limited adaptive histogram equalization (CLAHE) to compare the pre-processing of image.