CvFilter2D Method (CvArr, CvArr, CvMat, CvPoint) OpenCvSharp Class Library
Applies arbitrary linear filter to the image. In-place operation is supported. When the aperture is partially outside the image, the function interpolates outlier pixel values from the nearest pixels that is inside the image.

Namespace:  OpenCvSharp
Assembly:  OpenCvSharp (in OpenCvSharp.dll) Version: 1.0.0.0 (1.0.0.0)
Syntax

public static void Filter2D(
	CvArr src,
	CvArr dst,
	CvMat kernel,
	CvPoint anchor
)

Parameters

src
Type: OpenCvSharpCvArr
The source image.
dst
Type: OpenCvSharpCvArr
The destination image.
kernel
Type: OpenCvSharpCvMat
Convolution kernel, single-channel floating point matrix. If you want to apply different kernels to different channels, split the image using cvSplit into separate color planes and process them individually.
anchor
Type: OpenCvSharpCvPoint
The anchor of the kernel that indicates the relative position of a filtered point within the kernel. The anchor shoud lie within the kernel. The special default value (-1,-1) means that it is at the kernel center.
See Also

Reference