[Insight-developers] Extrapolating vector images

[Kwame Kutten]

I've written some new image extrapolators (ConstantExtrapolateImageFunction and PeriodicExtrapolateImageFunction) derived from the ExtrapolateImageFunction class template.  They work with scaler images but will not accept vector images because the base class was designed for scalar images ( http://www.itk.org/Doxygen/html/classitk_1_1ExtrapolateImageFunction.html#_details ).  

Is there a way to modify the ExtrapolateImageFunction to work with vector images, or should I write a new vector-specific class (e.g. ExtrapolateVectorImageFunction ) ?

Thanks