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RetrievalModes Enumeration

mode of the contour retrieval algorithm

Namespace:  OpenCvSharp
Assembly:  OpenCvSharp (in OpenCvSharp.dll) Version: 1.0.0
Syntax
public enum RetrievalModes
Members
  Member nameValueDescription
External0 retrieves only the extreme outer contours. It sets `hierarchy[i][2]=hierarchy[i][3]=-1` for all the contours.
List1 retrieves all of the contours without establishing any hierarchical relationships.
CComp2 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.
Tree3 retrieves all of the contours and reconstructs a full hierarchy of nested contours.
FloodFill4
See Also