[Insight-users] Copy filter output

[Silvano Agliozzo]

Dear all,

I'am a newcomer to the Itk libraries, so I could ask a trivial and I 
apologize in advance.

I need to use the RecursiveGuassianImageFilter in a 3D image in order to 
obtain second order derivatives, but I need to store the output of the filter 
to different 3D images. I do not want to get the pointer of the filter 
output since each time the pipeline of the filter is updated, the voxel 
values of all the images previously calculated, are updated too. 

I would like to know how  can I perform this task ? 

thank you very much,

Silvano