关键词: 数学形态学, Canny算子, 路径开, 路径闭, 边缘连接

Abstract: The edge image presented by the edge detection, in general, will suffer edge crack or breaking in various degrees. It brings great difficulties to subsequent object recognition and object extraction and so on. The characteristic of path openings and closings can define a bunch of chain structuring elements with one pixel wide as well as flexible direction and flexible length to do morphological operation. It has great advantages of dealing with linear structure in image. This paper proposes a sort of restoration technique upon edge crack or breaking on the basis of path morphology. Experiments show this algorithm can effectively repair the edge crack or breaking as well as meanwhile control the errors of edge linking so as to provide accurate information for subsequent image processing.

Key words: mathematical morphology, Canny arithmetic, path openings, path closings, edge linking