A Sub-Pixel Edge Detector: an Implementation of the Canny/Devernay Algorithm

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Communicated by Jose-Luis Lisani
Demo edited by Rafael Grompone von Gioi

Abstract

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.

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• source code: ZIP SWHID info
  Software Heritage Archive @softwareversion{sw-ipol.2017.216, title = {{A Sub-Pixel Edge Detector: an Implementation of the Canny/Devernay Algorithm}}, author = {Rafael Grompone von Gioi, Gregory Randall}, date = {2017-10-10}, license = {AGPL-3.0-or-later}, version = {1.0}, swhid = {swh:1:dir:60b02dbe634dd2f67fb851d363de3bc4096d508b;origin=https://doi.org/10.5201/ipol.2017.216;visit=swh:1:snp:7bfa52696f75873bb89b46b3c61d450181b28519;anchor=swh:1:rev:604958267cd62092c9872fbd9828949be88ae114}, related = {ipol.2017.216}, relatedtype = "Reference article: https://doi.org/10.5201/ipol.2017.216" } % the biblatex-software style extension is recommended for software bibitems
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History

• Note from the editor: the manuscript of the article was modified on 2022-01-01 to include information about its editors. The original version of the manuscript is available here.