关键词: Canny算子, 边缘检测, 数学形态学

Abstract: Canny operator is disturbed seriously by noise, so it has poor effect on noised image edge detection. The transformation based on contour structuring elements morphology not only can filter noise, but also can preserve detail of image edge. This arithmetic restrains noise by using transformation based on contour structuring elements morphology, calculates the grads and has local modulus maximum by using non-maximum suppression, binary edges by using double-threshold and connects the edges. The experiment shows that the arithmetic can extract noised image edges accurately.

Key words: Canny operator, edge detection, mathematic morphology