Patent ID: 8295593
Filing Date: 2012-10-23
Classification: G06K

Abstract:
1. A method for red-eye detection in an input image, the method comprising the acts of: enhancing redness of input image pixels having a threshold level of redness contrast; identifying candidate red-eye pixels in the image with enhanced redness input image pixels; forming a candidate red-eye pixel map by designating pixels in the enhanced image as candidate red-eye pixels if the pixels have a first threshold level of redness; and using the candidate red-eye pixel map to identify one or more candidate red-eye objects; wherein a pixel in the enhanced image has the first threshold level of redness if a red component thereof exceeds each of a plurality of other color components thereof by a first set of respective threshold amounts; wherein the first set of threshold amounts are dependent on color characteristics of pixels in the input image that are identified as having a second threshold level of redness, and wherein a pixel in the input image has the second threshold level of redness if a red component thereof exceeds each of a plurality of other color components thereof.