On the accuracy of the Sobel edge detector

Summary

It is shown that the error-free angle output of the iterative Sobel edge detector is achieved only at the expense of a degraded edge magnitude accuracy.

Keywords

Sobel operator, Magnitude (astronomy), Enhanced Data Rates for GSM Evolution, Detector, Deriche edge detector

References

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Edge replacement in the recognition of occluded objectsJ. R. Ullmann — 1993
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Performance analysis of tabular nearest-neighbor encoding for joint image compression and ATR: I. Background and theoryGary Key, Mark S. Schmalz, Frank M. Caimi — 1999
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Gradient detection in discrete log-polar imagesAndrew Wallace, D McLaren — 2003
The effect of noise on edge orientation computationsE.R. Davies — 1987

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