ImageFilter_swigregister = _SimpleITK.GradientMagnitudeRecursiveGaussianImageFilter_swigregister RuntimeError: Exception thrown in SimpleITK GradientMagnitudeRecursiveGaussianImageFilter_Execute: c:\b\3.6-64\itk-prefix\include\itk-4.13\itkImportImageContainer.hxx:199: Failed to allocate memory for image. ...