[Insight-users] itkBSplineSyNImageRegistrationMethod - - metric value

[Emma Saunders]

Hi,

I am new to the itkv4 framework and using
itkBSplineSyNImageRegistrationMethod. Without using the ANTS framework is
it valid to monitor the optimization simply using in a command iteration
observer

filter->GetCurrentMetricValue() << ", ";

The reason I ask is I understand multiple registrations are calculated to
some midway point using this method, so confused as to what this call will
return, if anything sensible?

Thanks for your help

Emma
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