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add note about hierarchy in python version

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AleksandrPanov 2021-08-04 15:37:20 +03:00
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modules/imgproc/include/opencv2/imgproc.hpp
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@ -3951,6 +3951,7 @@ hierarchy[i][0] , hierarchy[i][1] , hierarchy[i][2] , and hierarchy[i][3] are se
in contours of the next and previous contours at the same hierarchical level, the first child in contours of the next and previous contours at the same hierarchical level, the first child
contour and the parent contour, respectively. If for the contour i there are no next, previous, contour and the parent contour, respectively. If for the contour i there are no next, previous,
parent, or nested contours, the corresponding elements of hierarchy[i] will be negative. parent, or nested contours, the corresponding elements of hierarchy[i] will be negative.
@note In Python, hierarchy is nested inside a top level array. Use hierarchy[0][i] to access hierarchical elements of i-th contour.
@param mode Contour retrieval mode, see #RetrievalModes @param mode Contour retrieval mode, see #RetrievalModes
@param method Contour approximation method, see #ContourApproximationModes @param method Contour approximation method, see #ContourApproximationModes
@param offset Optional offset by which every contour point is shifted. This is useful if the @param offset Optional offset by which every contour point is shifted. This is useful if the