[Insight-users] median slice per slice

[Gaëtan Lehmann]

Le 19 oct. 09 à 17:41, Samuele Dietler a écrit :

> Hello itk users,
> i will use a median filter on a 3D image but there is a time  
> problem.If i will apply the median filter with a 3D mask 3X3X0 this  
> will take long time due to the fact that the median filter is non- 
> separable. Therefore i will apply just a 2D mask (3X3) filter on  
> each single slice of my 3D image, how do this?? I have to use the  
> filterextractor to extract and paste back the images from the 3D  
> image??


Hi,

You can simply set the radius to 0 on the last dimension.
That way, you don't have to process your volume slice by slice  
manually :-)

Other interesting options may be those filters:
http://www.itk.org/Doxygen/html/classitk_1_1SliceBySliceImageFilter.html
http://www.itk.org/Doxygen/html/classitk_1_1RankImageFilter.html
http://www.itk.org/Doxygen/html/classitk_1_1FastApproximateRankImageFilter.html

Regards,

Gaëtan


-- 
Gaëtan Lehmann
Biologie du Développement et de la Reproduction
INRA de Jouy-en-Josas (France)
tel: +33 1 34 65 29 66    fax: 01 34 65 29 09
http://voxel.jouy.inra.fr  http://www.itk.org
http://www.mandriva.org  http://www.bepo.fr

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