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.

public static void cvLaplace(
	IntPtr src,
	IntPtr dst,
	int aperture_size
)

Public Shared Sub cvLaplace ( _
	src As IntPtr, _
	dst As IntPtr, _
	aperture_size As Integer _
)

public:
static void cvLaplace(
	IntPtr src, 
	IntPtr dst, 
	int aperture_size
)