    median = vtkImageMedian3D()
    median.SetInputData(noisyData)
    median.SetKernelSize(5, 5, 1)

    hybridMedian1 = vtkImageHybridMedian2D()
    hybridMedian1.SetInputData(noisyData)
--
    median = vtkImageMedian3D()
    median.SetInputData(noisyData)
    median.SetKernelSize(5, 5, 1)

    gaussian = vtkImageGaussianSmooth()
    gaussian.SetDimensionality(2)
