FACE AND SKIN SENSITIVE IMAGE ENHANCEMENT

摘要

Systems and methods of face and skin sensitive image enhancement are disclosed. In one aspect, a face map (60) that includes for each pixel of an input image (24) a respective face probability value indicating a degree to which the pixel corresponds to a human face is calculated. A skin map (62) that includes for each pixel of the input image (24) a respective skin probability value indicating a degree to which the pixel corresponds to human skin is ascertained. The input image (24) is enhanced with an enhancement level that varies pixel-by-pixel in accordance with the respective face probability values and the respective skin probability values. In another aspect, a facial content measurement value indicating a degree to which an input image (24) contains human face content is ascertained. A tone-correction process is tuned in accordance with the facial content measurement value. The input image (24) is enhanced in accordance with the tuned tone-correction process.