A Computational Approach to Edge Detection
IEEE Transactions on Pattern Analysis and Machine Intelligence
An optimal linear operator for step edge detection
CVGIP: Graphical Models and Image Processing
A Discrete Expression of Canny's Criteria for Step Edge Detector Performances Evaluation
IEEE Transactions on Pattern Analysis and Machine Intelligence
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Three quality criteria have been defined by Canny (1986) to deduce an optimal edge detector in the continuous space domain. In this paper, we give an equivalent for these criteria in the discrete space domain. These new criteria are better in accordance with experimental results than previous one. Furthermore, they are more suitable to compare filters performances. We explain how to compute them. We compare some edge detectors. Finally, we use them to prove the qualities of a new simpler implementation of a second order recursive smoothing filter issued from Canny's theory.