1. The parameters to a Gaussian blur are: Sigma () – This defines how much blur there is. Kernel (image processing) - Wikipedia Gaussian kernel coefficients depend on the value of σ. (56)). GaussianMatrix [ { Automatic, σ, f }, …] constructs a matrix just large enough to include at least a fraction f of the discrete integral of a Gaussian in each direction. calculate gaussian kernel matrix A d x n training data matrix. If you continue the Gaussian out far enough, it will sum to 1.0, but since you truncated it, it doesn't. The code is to create an m-by-n matrix with sigma = 1. Skip to content. Gaussian Kernel Calculator | The Devil In The Details By . Kernel For a RBF kernel function κ R B F this can be done by. Gaussian Kernel