-instances itk::Image< #scalar_pixels#, #process_dims# >
-instances itk::#base_filters#< itk::Image< #scalar_pixels#, #process_dims# > >
-instances itk::#i2v#< itk::Image< #scalar_pixels#, #visual_dims# > >
+instances itk::Image< #pi#, #process_dims# >
+instances itk::#base_filters#< itk::Image< #pi#, #process_dims# > >
+instances itk::#i2v#< itk::Image< #pi#, #visual_dims# > >