[Insight-users] Computing the median value of a rectangular region

[Bradley Lowekamp]

Hello,

You could create an image of just the region you are interested with ExtractImageFilter, RegionOfInterestImageFilter, or CropImageFilter. Then use StatisticsImageFilter on that sub image.

Brad

On Jun 24, 2011, at 3:34 PM, Gaëtan Lehmann wrote:

> 
> Le 24 juin 11 à 21:26, David Doria a écrit :
> 
>> 2011/6/24 Neil Panjwani <paniwani at gmail.com>:
>>> Or you could use a neighborhood iterator, which by default creates
>>> rectangular regions, and collect the values the values that way.
>> 
>> I imagine he's looking for a functions like:
>> 
>> PixelType GetMedian(ImageRegion)
>> 
>> Does anyone know if something like this exists? It seems like a
>> reasonable request to me.
>> 
> 
> LabelMap/LabelObject can do that.
> It may not be easy enough to create the LabelObject corresponding to  
> the desired region though.
> 
> 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://mima2.jouy.inra.fr  http://www.itk.org
> http://www.bepo.fr
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========================================================
Bradley Lowekamp  
Lockheed Martin Contractor for
Office of High Performance Computing and Communications
National Library of Medicine 
blowekamp at mail.nih.gov


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