标签:RetrievalModes RETR hierarchy level opencv contours retrieves
opencv RetrievalModes
enum RetrievalModes { /** retrieves only the extreme outer contours. It sets `hierarchy[i][2]=hierarchy[i][3]=-1` for all the contours. */ RETR_EXTERNAL = 0, /** retrieves all of the contours without establishing any hierarchical relationships. */ RETR_LIST = 1, /** retrieves all of the contours and organizes them into a two-level hierarchy. At the top level, there are external boundaries of the components. At the second level, there are boundaries of the holes. If there is another contour inside a hole of a connected component, it is still put at the top level. */ RETR_CCOMP = 2, /** retrieves all of the contours and reconstructs a full hierarchy of nested contours.*/ RETR_TREE = 3, RETR_FLOODFILL = 4 //!< };
代码参考:opencv3.3\opencv\build\include\opencv2\imgproc.hpp
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标签:RetrievalModes,RETR,hierarchy,level,opencv,contours,retrieves 来源: https://www.cnblogs.com/herd/p/15456803.html
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