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Quantification and Correction of Iris Color
S. Fan and C. R. Dyer,
Computer Sciences Department Technical Report 1495, University of Wisconsin - Madison, December 2003.
A system has been developed that automatically extracts the iris region from photographs, computes the iris color in CIE u´v´ diagram color space, and corrects the color based on a standard calibration target. This system has advantages over previous manual methods in that it (1) is much less time-consuming because it is fully automatic, (2) corrects for the variability inherent in a film-based photographic process, (3) allows for greater objectivity and reproducibility, and (4) uses a mathematical foundation that enables quantification and statistical analysis. Preliminary experimental results show that color correction significantly improves grading accuracy.