Yu, C. Y., Lin, H. Y., Tang, K. H., & Yu, T. W. (2012). An AIHT based Histogram Equalization Algorithm for Image Contrast Enhancement. Research Journal of Applied Sciences, Engineering and Technology, 4(20), 3969-3972. https://www.airitilibrary.com/Article/Detail?DocID=20407467-201210-201512080010-201512080010-3969-3972