CONTRAST STRETCHING ENHANCEMENT TECHNIQUES FOR ACUTE LEUKEMIA IMAGES
Raja Rajeswari, Ramesh Narula · 2013
Leukemia is a cancer of the blood cells. When people affected with Leukemia, the bone marrow starts to generate a lot of abnormal white blood cells. They do not work like normal white blood cells, grow faster than normal cells, this can lead to serious problems. The screening system guidelines the leukemia patients to determine the abnormal levels of white blood cells. Therefore, medical professionals use medical images to diagnose leukemia. However, sometimes results show false diagnosis because of blurness and effect of unwanted noise on leukemia images. In such situations, the image processing such as image enhancement techniques are needed to improve the quality of leukemia images This study proposes several contrast enhancement techniques which are local contrast stretching, global contrast stretching, partial contrast stretching, bright and dark contrast stretching. All these enhancement techniques are applied on the ALL (Acute Lymphocyclic Leukemia) images and AML (Acute Myelogenous Leukemia) images. Results are observed for several images. All the proposed image enhancement techniques are carried to find out best technique for enhancing the Acute Leukemia images. Based on the results, the partial contrast stretching method is considered as the best technique that helps to improve quality of the image.