public static Mat GetSobelY(Mat source, BorderWrapType borderWrapType)
{
Mat dy = source.Clone();
ConvolutionHelper.NonSeparable(source, dy, SobelKernelY, borderWrapType);
return(dy);
}
public static Mat SobelNonSeparable(Mat source, Mat dx, Mat dy)
{
ConvolutionHelper.NonSeparable(source, dx, SobelKernelX, BorderWrapType.Copy);
ConvolutionHelper.NonSeparable(source, dy, SobelKernelY, BorderWrapType.Copy);
var target = new Mat(source.Width, source.Height);
for (var x = 0; x < source.Width; x++)
{
for (var y = 0; y < source.Height; y++)
{
target.Set(x, y, MathHelper.SqrtOfSqrSum(dx.GetAt(x, y), dy.GetAt(x, y)));
}
}
return(target);
}
public static Mat Sobel(Mat source, BorderWrapType borderWrapType)
{
Mat dx = new Mat(), dy = new Mat();
ConvolutionHelper.Separable(source, dx, SobelKernelA, borderWrapType);
ConvolutionHelper.Separable(source, dy, SobelKernelB, borderWrapType);
var target = new Mat(source.Width, source.Height);
for (var x = 0; x < source.Width; x++)
{
for (var y = 0; y < source.Height; y++)
{
target.Set(x, y, MathHelper.SqrtOfSqrSum(dx.GetAt(x, y), dy.GetAt(x, y)));
}
}
return(target);
}
