Cv2ConnectedComponents Method (InputArray, Int32, PixelConnectivity)

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

C++

Copy

public static int ConnectedComponents(
	InputArray image,
	out int[,] labels,
	PixelConnectivity connectivity
)

Public Shared Function ConnectedComponents ( 
	image As InputArray,
	<OutAttribute> ByRef labels As Integer(,),
	connectivity As PixelConnectivity
) As Integer

public:
static int ConnectedComponents(
	InputArray^ image, 
	[OutAttribute] array<int,2>^% labels, 
	PixelConnectivity connectivity
)

static member ConnectedComponents : 
        image : InputArray * 
        labels : int[,] byref * 
        connectivity : PixelConnectivity -> int

Parameters

image: Type: OpenCvSharpInputArray
the image to be labeled
labels: Type: SystemInt32
destination labeled rectangular array
connectivity: Type: OpenCvSharpPixelConnectivity
8 or 4 for 8-way or 4-way connectivity respectively

Return Value

Type: Int32
The number of labels

Reference

Cv2 Class

ConnectedComponents Overload

OpenCvSharp Namespace