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On edge gradient approximations |
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| Authors: | J Fglein |
| Affiliation: | SERC Rutherford Appleton Laboratory, Chilton, Didcot, Oxon, OX11 OQX, U.K. |
| Abstract: | The effect of imposing some desirable properties on the masks of differential-type operators is studied. It is shown that in a 3×3 window there are only two free parameters to specify. It is also shown that under the assumption of these properties a widely used differential-type edge detection method is equivalent to an appropriate template-matching method and vice-versa. |
| Keywords: | Edge detection |
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