/// <summary>
/// Convolves the provided image with a two dimensional Gaussian of the provided sigma and returns the result,
/// subsampled as directed.
/// </summary>
/// <typeparam name="I">Any image whose pixel values are stored as floats</typeparam>
/// <param name="image">The image to convolve.</param>
/// <param name="sigma">The sigma to use in the Gaussian</param>
/// <param name="subsample">The subsampling frequency.</param>
/// <returns>A blurred image</returns>
public static I ConvolveGaussian <I>(IArrayHandler <float> image, float sigma, int subsample) where I : IArrayHandler <float>, new()
{
I result = ConvolveHalf <I>(image, Gaussian.ComputeHalfKernel(sigma), subsample);
return(result);
}