    color = vtkImageMapToColors()
    color.SetLookupTable(wlut)
    color.SetInputData(actor.GetMapper().GetInput())

    actor.GetMapper().SetInputConnection(color.GetOutputPort())
    return
--
    sagittal_colors = vtkImageMapToColors()
    sagittal_colors.SetInputConnection(reader.GetOutputPort())
    sagittal_colors.SetLookupTable(bw_lut)
    sagittal_colors.Update()

    sagittal = vtkImageActor()
--
    axial_colors = vtkImageMapToColors()
    axial_colors.SetInputConnection(reader.GetOutputPort())
    axial_colors.SetLookupTable(hue_lut)
    axial_colors.Update()

    axial = vtkImageActor()
--
    coronal_colors = vtkImageMapToColors()
    coronal_colors.SetInputConnection(reader.GetOutputPort())
    coronal_colors.SetLookupTable(sat_lut)
    coronal_colors.Update()

    coronal = vtkImageActor()
