Red-eye detection based on red region detection with eye confirmation
First Claim
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1. One or more computer-readable storage media encoded with instructions that, when executed, cause a processor to perform acts comprising:
- receiving an image;
searching a set of areas of the image for candidate pixels of one or more colors, wherein the one or more colors comprise colors corresponding to red-eye;
combining the candidate pixels into a set of one or more pixel groups, wherein the combining comprises combining candidate pixels into the same group if the candidate pixels are adjacent one another;
filtering the pixel groups based on filling ratio, wherein the filling ratio comprises a number of red pixels in the pixel group divided by a product of horizontal and vertical aspects of the pixel group; and
for each pixel group in the set of one or more pixel groups, classifying the pixel group as being part of an eye or not part of an eye.
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Abstract
Red-eye detection based on red region detection with eye confirmation initially identifies pixels that correspond to the color of red-eye within an image. A determination is then made as to whether these identified pixels and surrounding areas are part of an eye or not part of an eye. Those identified pixels that are determined to be part of an eye are the detected red-eye regions.
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22 Claims
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1. One or more computer-readable storage media encoded with instructions that, when executed, cause a processor to perform acts comprising:
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receiving an image; searching a set of areas of the image for candidate pixels of one or more colors, wherein the one or more colors comprise colors corresponding to red-eye; combining the candidate pixels into a set of one or more pixel groups, wherein the combining comprises combining candidate pixels into the same group if the candidate pixels are adjacent one another; filtering the pixel groups based on filling ratio, wherein the filling ratio comprises a number of red pixels in the pixel group divided by a product of horizontal and vertical aspects of the pixel group; and for each pixel group in the set of one or more pixel groups, classifying the pixel group as being part of an eye or not part of an eye. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 18, 19, 20, 21, 22)
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12. A system comprising:
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means for searching a set of areas of an image for candidate pixels of one or more colors, the one or more colors comprising colors corresponding to red-eye; means for combining the candidate pixels into a set of one or more pixel groups, the means for combining two candidate pixels into the same group if the two candidate pixels are adjacent one another; means for filtering the pixel groups based on filling ratio, wherein the filling ratio comprises a number of red pixels in the pixel group divided by a product of horizontal and vertical aspects of the pixel group; and means for classifying, for each pixel group in the set of one or more pixel groups, the pixel group as being part of an eye or not part of an eye. - View Dependent Claims (13, 14, 15, 16, 17)
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Specification