[Insight-users] Difference between two recursive gaussian filters

[Luis Ibanez]

Hi Kai,

The RecursiveGaussianImageFilter applies the
smoothing along a *single* dimension, while
the SmoothingRecursiveGaussianImageFilter uses
internally several RecursiveGaussianImageFilter
in order to smooth along *all* dimensions.


In practice you generally want to use the
SmoothingRecursiveGaussianImageFilter.


The RecursiveGaussianImageFilter is mostly
used inside other filters such as the
LaplacianRecursiveGaussianImageFilter and
GradientRecursiveGaussianImageFilter.



   Regards,


      Luis


--------------
Kai Li wrote:

> Hi,
>   I'm wondering what's the difference between two filters:
> RecursiveGaussianImageFilter with order of zero, and
> SmoothingRecursiveGaussianImageFilter.
> 
> Thanks,
> Kai
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