Cheng-Yi Yu was born in May 2, 1969 in Taichung County, Taiwan. He received his college graduate in Electronics Engineering (19xx), and the M.S. and Ph.D. degrees in Electrical Engineering (2003) from the National Chung Hsing University, Taichung, Taiwan, R.O.C., in 2003 and 2011, respectively. Since 1990, he has been with the Department of Computer Science and Information Engineering of National Chin Yi University of Technology, Taichung, where he is currently an Associate Professor. His research interests include image contrast enhancement, image processing and digital signal processing.