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Find the edges on this image and marked them in the returned image.

Namespace: Emgu.CV
Assembly: Emgu.CV (in Emgu.CV.dll) Version: 2.4.2.1777 (2.4.2.1777)

Syntax

C#
public Image<Gray, byte> Canny(
	double thresh,
	double threshLinking,
	int apertureSize
)
Visual Basic
Public Function Canny ( _
	thresh As Double, _
	threshLinking As Double, _
	apertureSize As Integer _
) As Image(Of Gray, Byte)
Visual C++
public:
Image<Gray, unsigned char>^ Canny(
	double thresh, 
	double threshLinking, 
	int apertureSize
)

Parameters

thresh
Type: System..::..Double
The threshhold to find initial segments of strong edges
threshLinking
Type: System..::..Double
The threshold used for edge Linking
apertureSize
Type: System..::..Int32
The aperture size, use 3 for default

Return Value

The edges found by the Canny edge detector

See Also