[Insight-users] Kuwahara edge preserving median filter

[Luis Ibanez]

Hi Paul,

Nope, ITK does not have an implementation of this filter.

Note that this is not really a median filter, it is rather a
selective mean filter.

You may want to try the traditional Median filter, which has
already some edge preserving properties.


You will also find a list of edge-preserving smoothing filters
in the ITK Software Guide:

     http://www.itk.org/ItkSoftwareGuide.pdf

In section 6.7.3, "Edge Preserving Smoothing" in pdf-page 226.


If you really want to implement the kuwahara filter, it may be
easy to put together a couple of ITK filters in a mini-pipeline
to achieve a similar effect.

The only tricky part of the code will be to visit the means of
the quadrants, since it will require to set the list of neighbors
of a Neighborhood iterator.

Please let us know if you want to implement the filter and
would like to have details or suggestions on how to do it.


   Regards,


        Luis



-------------------------------------------------------------------------------------
On 4/2/07, Paul M. Wallace <pwallace at janscientific.com> wrote:
>
> Hi All:
>
> Is there an implementation (or alternative) for the Kuwahara edge
> preserving median filter in the itk toolkit?
>
> Filter as implemented in ImageJ:
> http://rsb.info.nih.gov/ij/plugins/kuwahara.html
>
> -Paul
>
> --
> JAN Scientific, Inc.
> 123 NW 36th St., Ste 235
> Seattle, WA 98107
> 206.632.1814
>
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> Insight-users at itk.org
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>
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