[ITK] [ITK-users] CompositeTransform forward backward order

[Emma Saunders]

Hi

could someone please clarify the order when considering composite
transforms.

When warping the moved image back to the fixed this order is required:

  CompositeTransform->AddTransform(affine);
  CompositeTransform->AddTransform(DisplacementFieldTransform);

When propogating the fixed to the moving using the inverse affine this
order is required:

  CompositeTransform->AddTransform(DisplacementFieldTransform);
  CompositeTransform->AddTransform(Inverseaffine);

Could someone clarify the process involved here or perhaps point me to some
documentation that does?

Many thanks

Emma
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