[ITK] Passing parameters in image transform

[Constantinus Spanakis]

I have a new question. I have a typedef
itk::ImageRegistrationMethod<FixedImageType, MovingImageType >
 RegistrationType; Then I create a pointer RegistrationType::Pointer
registration=RegistrationType::New();
In the registration pointer i set the optimization method, the metric and
the fixedImage and the movingImage, the transform method and a few other
parameters. After I finish the rigid registration, then I set to the very
same registration pointer the affine transform. Will the registration
pointer continue automatically the registration (by executing the
registration ->Update()) starting from the result of the previous
registration or must I manually reset the movingImage parameter?

Thank you in advance

On Thu, Jul 21, 2016 at 6:49 PM, Matt McCormick <matt.mccormick at kitware.com>
wrote:

> The itk::CompositeTransform:
>
>   https://itk.org/Doxygen/html/classitk_1_1CompositeTransform.html
>
> was designed for this use case. It can be used in this way in the
> ITKv4 registration framework.
>
> HTH,
> Matt
>
> On Thu, Jul 21, 2016 at 11:43 AM, Dženan Zukić <dzenanz at gmail.com> wrote:
> > It looks like it should. Maybe you could have new instance of
> registration
> > class, to prevent loop dependency. Anyway, it is best to try :D
> >
> > On Thu, Jul 21, 2016 at 8:25 AM, Constantinus Spanakis
> > <c.spanakis83 at gmail.com> wrote:
> >>
> >> Hello. I try to do image registration between two images, called
> >> fixedImage and movingImage using firstly rigid transform and then affine
> >> transform.
> >>
> >> After I finish the rigid registration, I want to use the movingImage,
> >> after it gets transformed due to rigid registration,  and use the NEW
> >> movingImage as the movingimage input of the affine registration. Does
> the
> >> following code do the trick?
> >>
> >>
> >>
> rigidTransform->SetParameters(registration->GetLastTransformParameters());
> >> resample->SetTransform(rigidTransform);
> >> resample->SetInput(movingImageReader->GetOutput());
> >>
> >> resample->SetSize(fixedImage->GetLargestPossibleRegion().GetSize());
> >> resample->SetOutputOrigin(fixedImage->GetOrigin());
> >> resample->SetOutputSpacing(fixedImage->GetSpacing());
> >> resample->SetOutputDirection(fixedImage->GetDirection());
> >>
> >> registration->SetMovingImage(resample->GetOutput());
> >>
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> >>
> >
> >
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