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Calculates Laplacian of the source image by summing second x- and y- derivatives calculated using Sobel operator. Specifying aperture_size=1 gives the fastest variant that is equal to convolving the image with the following kernel: |0 1 0| |1 -4 1| |0 1 0|

Namespace: Emgu.CV
Assembly: Emgu.CV (in Emgu.CV.dll) Version: 2.4.0.1717 (2.4.0.1717)

Syntax

C#
public Image<TColor, float> Laplace(
	int apertureSize
)
Visual Basic
Public Function Laplace ( _
	apertureSize As Integer _
) As Image(Of TColor, Single)
Visual C++
public:
Image<TColor, float>^ Laplace(
	int apertureSize
)

Parameters

apertureSize
Type: System..::..Int32
Aperture size

Return Value

The Laplacian of the image

See Also