Patent ID: 7155058

Claim:
A system for detecting and correcting red-eye in an image without user intervention, the system comprising: a face recognition and location engine configured to identify one or more faces within the image, wherein at least a portion of the image is in the chrominance-luminance color space; a red-eye locator engine configured to detect an occurrence of red-eye within the one or more identified faces, wherein the red-eye locator engine computes a color variation metric value for a given pixel of an identified face by computing a mean luminance-chrominance value for a patch of pixels centered on the given pixel, a squared distance between the luminance-chrominance value of the given pixel and the computed mean luminance-chrominance value for the patch, and an average of the squared distances within a region centered on the given pixel; and a red-eye correction engine configured to correct the detected occurrences of red-eye within the image, wherein the red-eye locator engine detects an occurrence of red-eye based upon one or more metrics computed for one or more identified faces, the one or more metrics including a color variation metric tat corresponds to a change in color within a given area, the color variation metric corresponds to a change in both luminance and chrominance within the given area.