[ITK-users] ImageToImageMetric in Python

[Prevrhal, Sven]

I am looking at the itk Software Guide to figure out how to implement this in Python. I have:

        nccMetric = itk.NormalizedCorrelationImageToImageMetric.IF3IF3.New()
        nccMetric.SetTransform(itk.IdentityTransform.D3.New())
        nccMetric.SetInterpolator(itk.NearestNeighborInterpolateImageFunction.IF3D.New())
        nccMetric.SetFixedImage(fixedImage)
        nccMetric.SetMovingImage(movingImage)

which I believe works fine. I am getting stumped by the translation of this to Python:

  # ITK software guide page 390
  # C++ code: MetricType::TransformParametersType displacement( Dimension );
        displacement = nccMetric.??

After which

value = nccMetric.GetValue( displacement )

should work fine. Anybody knows this?

Regards,
Sven

Sven Prevrhal
Philips Research


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