Method GaussianBlur

Namespace

OpenCvSharp

Assembly

OpenCvSharp.dll

GaussianBlur(InputArray, OutputArray, Size, double, double, BorderTypes, AlgorithmHint)

Blurs an image using a Gaussian filter.

public static void GaussianBlur(InputArray src, OutputArray dst, Size ksize, double sigmaX, double sigmaY = 0, BorderTypes borderType = BorderTypes.Default, AlgorithmHint hint = AlgorithmHint.Default)

Parameters

src InputArray

input image; the image can have any number of channels, which are processed independently, but the depth should be CV_8U, CV_16U, CV_16S, CV_32F or CV_64F.

dst OutputArray

output image of the same size and type as src.

ksize Size

Gaussian kernel size. ksize.width and ksize.height can differ but they both must be positive and odd. Or, they can be zero’s and then they are computed from sigma* .

sigmaX double

Gaussian kernel standard deviation in X direction.

sigmaY double

Gaussian kernel standard deviation in Y direction; if sigmaY is zero, it is set to be equal to sigmaX, if both sigmas are zeros, they are computed from ksize.width and ksize.height, respectively (see getGaussianKernel() for details); to fully control the result regardless of possible future modifications of all this semantics, it is recommended to specify all of ksize, sigmaX, and sigmaY.

borderType BorderTypes

pixel extrapolation method

hint AlgorithmHint

Hint that selects between alternative algorithm implementations (OpenCV 5).