Power reduction and contrast enhancement based on scene reconstruction for organic light emitting diode displays

Abstract

A power reduction and contrast enhancement algorithm based on scene reconstruction for an organic light-emitting diode display is presented. The process of energy saving can be regarded as the extraction of image features and reconstruction of a scene to cater to human visual perception. In the proposed algorithm, some characteristics such as skin color, local variance, and brightness value are adopted to describe image features and are combined into a contour-preserving attenuation model. According to this model, reconstruction of a scene is accomplished through changing the value of the brightness reasonably while saving energy. Finally, enhancement of the image is guaranteed by the process of compensating for the brightness. Experimental results show that the proposed algorithm provides better visual quality than former algorithms and can reach an appropriate energy saving ratio.