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Cv2FindContoursAsMat Method

Finds contours in a binary image.

Namespace:  OpenCvSharp
Assembly:  OpenCvSharp (in OpenCvSharp.dll) Version: 1.0.0
Syntax
public static Mat<Point>[] FindContoursAsMat(
	InputOutputArray image,
	RetrievalModes mode,
	ContourApproximationModes method,
	Nullable<Point> offset = null
)

Parameters

image
Type: OpenCvSharpInputOutputArray
Source, an 8-bit single-channel image. Non-zero pixels are treated as 1’s. Zero pixels remain 0’s, so the image is treated as binary. The function modifies the image while extracting the contours.
mode
Type: OpenCvSharpRetrievalModes
Contour retrieval mode
method
Type: OpenCvSharpContourApproximationModes
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.

Return Value

Type: MatPoint
Detected contours. Each contour is stored as a vector of points.
See Also