[Insight-users] Applying a transform to a VariableLengthVector/VectorImage pixels

[David Doria]

>
>  You should be able to use an itk::UnaryFunctorImageFilter with a
> custom-defined functor that performs the rotation. This will at least
> save you from iterating manually over the pixels.
>
> Hope that helps,
> Cory
>

Thanks Cory, that was exactly what I was looking for. Here is an example for
anyone interested:
http://www.vtk.org/Wiki/ITK/Examples/Images/UnaryFunctorImageFilter

<http://www.vtk.org/Wiki/ITK/Examples/Images/UnaryFunctorImageFilter>I tried
to show how to convert between a Vector and a VariableLengthVector, but
neither conversion seems to go well. Here is what I tried:
http://www.vtk.org/Wiki/ITK/Examples/VariableLengthVector
<http://www.vtk.org/Wiki/ITK/Examples/VariableLengthVector>(the two
functions VectorToVariableLengthVector() and VariableLengthVectorToVector()
). Can anyone explain how to do this properly?

Thanks,

David
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