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Calculates Laplacian of the source image by summing second x- and y- derivatives calculated using Sobel operator: dst(x,y) = d2src/dx2 + d2src/dy2 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| Similar to cvSobel function, no scaling is done and the same combinations of input and output formats are supported.

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

Syntax

C#
public static void cvLaplace(
	IntPtr src,
	IntPtr dst,
	int apertureSize
)
Visual Basic
Public Shared Sub cvLaplace ( _
	src As IntPtr, _
	dst As IntPtr, _
	apertureSize As Integer _
)
Visual C++
public:
static void cvLaplace(
	IntPtr src, 
	IntPtr dst, 
	int apertureSize
)

Parameters

src
Type: System..::..IntPtr
Source image.
dst
Type: System..::..IntPtr
Destination image.
apertureSize
Type: System..::..Int32
Aperture size

See Also