AttributeError: module'itk' has no attribute'GradientDifferenceImageToImageMetric'

Beginner Questions
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1

When I use itk’s GradientDifferenceImageToImageMetric in a python environment, the above error occurred.
Then I did not find the itkGradientDifferenceImageToImageMetricpython.py file in the packages directory.
Why does this happen, the itk version is 5.1.2 and the python version is 3.8.
Thank you!

2

GradientDifferenceImageToImageMetric is currently not wrapped. Adding the wrapping specification should not be hard. It should be similar to other wrap specifications for metrics, e.g. MeanSquaresImageToImageMetric. Do you mind submitting a patch?

3

Thanks for your reply, I will try to solve it.