Feature detection |
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Edge detection |
Corner detection |
Blob detection |
Ridge detection |
Hough transform |
Structure tensor |
Affine invariant feature detection |
Feature description |
Scale space |
The Canny edge detector is an edge detection operator that uses a multi-stage algorithm to detect a wide range of edges in images. It was developed by John F. Canny in 1986. Canny also produced a computational theory of edge detection explaining why the technique works.