[Insight-users] Flexible smoothing filter, does it really exist?

[Luis Ibanez]

Hi John,

The closest thing you will find is the convolution filter...

But is not presented quite the way you are asking in this email.

Please note that by design, something like a "Swiss-Army-Knife"
filter is a very undesirable thing to have in a software implementation.

Such a filter will become a nest of bugs,
and a shame of code coverage.


In ITK you will find families of filters, that have a similar API.

You may find interesting, however, to look at the implementation
of the WindowedSincInterpolator in Insight/Code/Common

Where you will find implementations of the basic smoothing windows.


  * \class CosineWindowFunction
  * \class HammingWindowFunction
  * \class WelchWindowFunction
  * \class LanczosWindowFunction
  * \class BlackmanWindowFunction


You may also find interesting to look a the recent contribution of
Kernel filters in the Code/Review directory.

These filters are described in the Insight Journal paper:

                http://hdl.handle.net/1926/555


They will provide a good framework for implementing this family
of smoothing filter.


    Regards,


       Luis


------------------
John Smith wrote:
> Dear all,
> 
> Although my problem is simple, I cannot find a way to deal with it yet. 
> The problem is that I want to have a smoothing filter to filter 3D 
> images, with an option to change the windowing function, e.g. Blackman, 
> Hamming, etc. Does any one know how to do that in ITK as I don't have a 
> lot of experience with ITK?
> 
> Thanks,
> 
> J.
> 
> 
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