    writer = vtkMetaImageWriter()
    writer.SetFileName("output.mha")
    writer.SetInputData(mask)
    writer.Write()


--
    imageWriter = vtkMetaImageWriter()
    imageWriter.SetFileName('labelImage.mhd')
    imageWriter.SetInputConnection(imgstenc.GetOutputPort())
    imageWriter.Write()

    imageWriter = vtkPNGWriter()
