public void FindContours(
	out Mat[] contours,
	OutputArray hierarchy,
	ContourRetrieval mode,
	ContourChain method,
	Nullable<Point> offset = null
)

Public Sub FindContours ( 
	<OutAttribute> ByRef contours As Mat(),
	hierarchy As OutputArray,
	mode As ContourRetrieval,
	method As ContourChain,
	Optional offset As Nullable(Of Point) = Nothing
)

public:
void FindContours(
	[OutAttribute] array<Mat^>^% contours, 
	OutputArray^ hierarchy, 
	ContourRetrieval mode, 
	ContourChain method, 
	Nullable<Point> offset = nullptr
)

member FindContours : 
        contours : Mat[] byref * 
        hierarchy : OutputArray * 
        mode : ContourRetrieval * 
        method : ContourChain * 
        ?offset : Nullable<Point> 
(* Defaults:
        let _offset = defaultArg offset null
*)
-> unit 

Parameters

contours

Type: OpenCvSharp.CPlusPlusMat
Detected contours. Each contour is stored as a vector of points.

hierarchy

Type: OpenCvSharp.CPlusPlusOutputArray
Optional output vector, containing information about the image topology. It has as many elements as the number of contours. For each i-th contour contours[i], the members of the elements hierarchy[i] are set to 0-based indices 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, parent, or nested contours, the corresponding elements of hierarchy[i] will be negative.

mode

Type: OpenCvSharpContourRetrieval
Contour retrieval mode

method

Type: OpenCvSharpContourChain
Contour approximation method

offset (Optional)

Type: SystemNullablePoint
Optional offset by which every contour point is shifted. This is useful if the contours are extracted from the image ROI and then they should be analyzed in the whole image context.

Reference