[Insight-users] Gradient Filters and Streaming

[Michael]

Hi,

I've noticed that the GradientRecursiveGaussianImageFilter is not 
streaming capable. I'm wondering whether it would basically be possible 
to make it streaming capable. I didn't go into the mathematics of the 
filter, because I thought it's less time consuming when asking this 
question in the mailing list... The question basically is, is the area 
required by the filter to compute the output for one pixel limited or 
does it (theoretically) cover the whole image?

Can you give me any references on which the implementation of this 
filter is based?

Thanks,

Michael