A Sub-Pixel Edge Detector: an Implementation of the Canny/Devernay Algorithm
Rafael Grompone von Gioi, Gregory Randall
⚠ This is a preprint. It may change before it is accepted for publication.


An image edge detector is described which produces chained edge points with sub-pixel accuracy. The method incorporates the main ideas of the classic Canny and Devernay algorithms. The analysis shows that a slight modification to the original formulation improves the accuracy of the edge points.