A digital image processing method includes extracting chromatic information of an image taken by an image taking device and related to a human subject; detecting visually interesting regions; and exposure correcting of the taken image by normalizing a grey scale of the taken image based on the visually...http://www.google.co.uk/patents/US7778483?utm_source=gb-gplus-sharePatent US7778483 - Digital image processing method having an exposure correction based on recognition of areas corresponding to the skin of the photographed subject
