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MatConnectedComponents Method (OutputArray, PixelConnectivity, MatType)

computes the connected components labeled image of boolean image. image with 4 or 8 way connectivity - returns N, the total number of labels [0, N-1] where 0 represents the background label. ltype specifies the output label image type, an important consideration based on the total number of labels or alternatively the total number of pixels in the source image.

Namespace:  OpenCvSharp
Assembly:  OpenCvSharp (in OpenCvSharp.dll) Version: 1.0.0
Syntax
public int ConnectedComponents(
	OutputArray labels,
	PixelConnectivity connectivity,
	MatType ltype
)

Parameters

labels
Type: OpenCvSharpOutputArray
destination labeled image
connectivity
Type: OpenCvSharpPixelConnectivity
8 or 4 for 8-way or 4-way connectivity respectively
ltype
Type: OpenCvSharpMatType
output image label type. Currently CV_32S and CV_16U are supported.

Return Value

Type: Int32
The number of labels
See Also