A SYSTEM AND METHOD FOR ENHANCING THE CONTRAST RATIO OF AN IMAGE

摘要

The disclosed embodiments relate to a system (40) and method (130) that enhance the contrast ratio of a display device. An exemplary embodiment comprises determining brightness level of a brightest object of a video frame (134), determining a required illumination for the video frame based on the pixel brightness level of the brightest object (136), obtaining a gamma-corrected pixel adjustment value (140), applying (144) the gamma-corrected pixel adjustment value to a color value of an input pixel (68-72) of the video frame to obtain a gamma-corrected pixel value (74-78), and displaying the gamma-corrected pixel value (144).