Color edge detection with the compass operator
- 20 January 2003
- proceedings article
- Published by Institute of Electrical and Electronics Engineers (IEEE)
- Vol. ii, 160-166
- https://doi.org/10.1109/cvpr.1999.784624
Abstract
The compass operator detects step edges without as- suming that the regions on either side have constant color. Using distributions of pixel colors rather than the mean, the operator finds the orientation of a diameter that maximizes the difference between two halves of a circular window. Junctions can also be detected by exploiting their lack of bilateral symmetry. This approach is superior to a multi- dimensional gradient method in situations that often result in false negatives, and it localizes edges better as scale increases.Keywords
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