Is there a way to set shrink factors anisotropically? This would be for cases when one dimension of an image is much thinner than the others so it doesn’t need as much shrinking.
In Simple ITK it doesn’t work to pass
SetShrinkFactorsPerLevel a sub list/tuple of shrink factors for each dimension.
registration_method = sitk.ImageRegistrationMethod() registration_method.SetShrinkFactorsPerLevel([(16, 8, 16), (8, 4, 8), (2,1,2)])
only registration_method.SetShrinkFactorsPerLevel([16, 8, 2]) works so each dimension is shank by the same amount at each level.