The Max Roberts Operator is a Hueckel-Type Edge Detector
- 1 January 1981
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE)
- Vol. PAMI-3 (1) , 101-103
- https://doi.org/10.1109/tpami.1981.4767056
Abstract
Hueckel's edge detector finds the best-fitting ideal step edge to a given picture neighborhood by expanding the neighborhood and step edge in terms of a set of nine basis functions. A very simple case of this approach uses a 2 × 2 neighborhood and three basis functions. This case is solved explicitly using elementary methods. The magnitude of the best-fitting step edge for the neighborhood AB CD turns out to be the Roberts operator max (|A - D|, |B - C|).Keywords
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