transformix_jacobian tries to use files

Also seems to be not working in itkTransformFilterTest.py, commented in #109

25:   File "itkTransformixFilterTest.py", line 51, in <module>
25:     jacobian = itk.transformix_jacobian(moving, parameters, log_to_console=True)
25:   File "/home/matt/bin/ITK-Wrap-Release/Wrapping/Generators/Python/itk/support/../ElastixPython.py", line 99, in transformix_jacobian
25:     det_spatial_jacobian = itk.imread('spatialJacobian.nii', itk.F)
25:   File "/home/matt/bin/ITK-Wrap-Release/Wrapping/Generators/Python/itk/support/itkExtras.py", line 692, in imread
25:     raise RuntimeError("No ImageIO is registered to handle the given file.")
25: RuntimeError: No ImageIO is registered to handle the given file.
25: itkTestDriver: Process exited with return value: 1

[thewtex]

The itk.elastix_registration_method function is automatically generated from the itk::ElastixRegistrationMethod class. Indexed input’s and output’s to that class become the position args. The Set* methods become the kwargs (also supporting snake_case). For SimpleElastix, it was a different, involved manual process.

[ViktorvdValk]

This was indeed a very, quick temporal solution, since it wasn’t a priority back then. But I’ll now try to fix this issue in the itkTransformixFilter file in elastix.