DCT 계수의 스케일링을 이용한 이미지 보정 알고리즘의 GPU 구현

CES (Color Enhancement by Scaling) algorithm is efficiently implemented on a Graphics Processing Unit(GPU) and the speed-up of 22 ~ 51 is obtained when compared to a CPU based one. The algorithm conducts adjustment of local background illumination, preservation of local contrast and colors, and blocking artifacts suppression.