Color Edge Detection: A Comparative Study
MARYLAND UNIV COLLEGE PARK COMPUTER SCIENCE CENTER
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A color edge may be measured by the max, mean, median or RMS root mean square of the intensity differences on the three color channels. The performance of these edge measures in various color coordinate sytems is studied. It is observed that RMS give the best performance in all the coordinate systems, followed by the mean, max and median in that order. Even in noisy images the RMS yields the smoothest edge output. Though the mean and max are of comparable performance, the max is more appropriate for the Y I Q and K1K2K3 systems while the mean may be preferred to the max in the other systems.
- Optical Detection and Detectors