DISCRIMINATING BETWEEN SYNTHETIC AND NATURAL IMAGE REGIONS

摘要

A classification unit (100) for discriminating between synthetic image regions (116) and natural image regions (118) in an image (114) comprises a number of probability estimators (102-106), each for estimating for a particular pixel (120) of the image respective probability values related to a probability of being located in one of the natural image regions (118) based on values of pixels of a group (122) of pixels in a neighborhood of the particular pixel (120). The classification unit (100) further comprises a combination unit (108) designed to calculate for the particular pixel (120) one final probability value related to the probability of being located in one of the natural image regions (118) by combining the probability values estimated by the respective probability estimators (102-106).