Detection and correction of red-eye features in digital images
A method of detecting red-eye features ( 1 ) in a digital image comprises identifying highlight regions ( 2 ) of the image having pixels with a substantially red hue and higher saturation and lightness values than pixels in the regions therearound. In addition, pupil regions ( 3 ) comprising two sat...
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Sprache: | eng |
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Zusammenfassung: | A method of detecting red-eye features (
1
) in a digital image comprises identifying highlight regions (
2
) of the image having pixels with a substantially red hue and higher saturation and lightness values than pixels in the regions therearound. In addition, pupil regions (
3
) comprising two saturation peaks either side of a saturation trough may be identified. It is then determined whether each highlight or pupil region corresponds to part of a red-eye feature on the basis of further selection criteria, which may include determining whether there is an isolated, substantially circular area (
43
) of correctable pixels around a reference pixel. Correction of red-eye features involves reducing the lightness and/or saturation of some or all of the pixels in the red-eye feature. |
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