REDUCTION OF POWERCONSUMPTION IN EMISSIVE DEVICES BASED ON POWER CONSTRAINT CONTRAST ENHANCEMENT

Abstract

In this paper we are consuming the total power required to display the image. For this we use the histogram of that image. The histogram is modified as log based histograms that reduce overstretching articrafts of the conventional histogram equalization technique. Then we develop a model called power constrained contrast enhancement for consuming the power. The objective function in PCCE consists of power term and histogram equalization term. Moreover, we extend the proposed algorithm to enhance video sequences, as well as still images. Simulation results demonstrate that the proposed algorithm can reduce power consumption significantly while improving image contrast and perceptual quality. Index Terms—Contrast enhancement, emissive displays, histogram equalization (HE), histogram modification (HM), image enhancement, low-power image processing.