[Insight-users] Filtering all channels of a VectorImage

[Julien Malik]

> I would go as far as to say all filters should be able to do this 
> (without writing the loop in each one). I'm going to take a look at 
> Juliens solution now.
>
> David
+1 !

Concerning our solution, it uses some other filters, namely a 
VectorImageToImageList filter and its conterpart, plus in the middle a 
generic filter working on ImageList and applying an ImageToImageFilter 
to each Image of the list.
Although it "does the job", it is memory and performance unfriendly.

Julien