[Insight-users] B spline interpolation coefficients

[Luis Ibanez]

Hi Daphne,


In the BSpline interpolate image function there is no way to access
the coefficients from the outside.

However, if you want to get the same coefficients, you could simply
call the filter:

          itkBSplineDecompositionImageFilter

and make sure that you call it with the same SetSplineOrder() value.


This is the class that is used to generate the coefficients inside
of the itkBSplineInterpolateImageFunction.


   Regards,


       Luis


---------------------
Daphne Wallach wrote:
> Hi,
> 
> I wondered if it is possible to access the interpolation coefficients  
> when doing a
> bspline interpolation ?
> 
> I use the class "BSplineInterpolateImageFunction", and it seems like  
> the interpolation
> coefficients are stored in the protected attribute "m_Coefficients".
> 
> Am I right ? I tried to create a class deriving from  
> "BSplineInterpolateImageFunction"
> that can use "m_Coefficients", but the continuous image I created from  
> these coefficients
> did not match my original image. If this is the way to access the  
> interpolation
> coefficients, how can they be used ? And if it isn't, then how can I  
> access them ?
> 
> Thank you for your help,
> Regards,
> Daphné
> 
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