INTEGRATED HISTOGRAM AUTO ADAPTIVE CONTRAST CONTROL (ACC)

摘要

ABSTRACT OF THE DISCLOSUREINTEGRATED HISTOGRAM AUTO ADAPTIVE CONTRAST CONTROL (ACC) The invention provides for calculating the sum of the luminance values of allpixels in each of a number of regions making up the whole image. A histogram is then created of all the sums of luminance at the end of each frame. The histogram is then resealed such that the luminance range is normalized. Once the histogram has been created, an appropriate transfer function is created using the integratedluminance histogram for the frame. In this way detail within significant objects in the image are enhanced since the average luminance of objects in an image are weighted more than then the luminance of individual pixels providing a more realistic transfer function.Fig. 6