On edge gradient approximations

被引:8
作者
Foeglein, J. [1 ]
机构
[1] SERC, Rutherford Appleton Lab, Didcot OX11 0QX, Oxon, England
关键词
Edge detection;
D O I
10.1016/0167-8655(83)90082-X
中图分类号
TP18 [人工智能理论];
学科分类号
081104 ; 0812 ; 0835 ; 1405 ;
摘要
The effect of imposing some desirable properties on the masks of differential-type operators is studied. It is shown that in a 3 x 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.
引用
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页码:429 / 434
页数:6
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