[Insight-users] Can you block some parameters from being optimized

[Urlek]

Hi,
   is it possible to stop some parameters in a set from being optimized by
the ITK's optimizers? For example, can you run an affine transformation
based registration and first optimize only the last three elements
(translation), then include the affine matrix diagonal (elements 1, 4 and 7
- scaling factors) and optimize the rest of the matrix only at the end? Or
do I really have to initialize 3 different transformations and sequentially
plug them into optimization process?

Thanks!


PS: Can SetScaling() be used for that in any way? E.g. by setting very large
values (or zero) to the elements I don't want optimized?
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