[Insight-users] Fastest color-based segmentation ITK class

[Luis Ibanez]

Hi Arturo,

If you don't mind asking the user to provide seed points,
you may want to consider the use of:

http://www.itk.org/Insight/Doxygen/html/classitk_1_1VectorConfidenceConnectedImageFilter.html

It computes the mean and covariance matrix of a multi-component
image around the seed points that you provide, and then uses
a Mahalanobis distance in the parametric space of the image
in order to select pixels with similar values.


A second good option is to use SVD (singular value decomposition)
in the color space.

A third option is to run K-means.
See examples in Insight/Examples/Statistics



  Regards,


    Luis


-----------------------
Arturo Caissut wrote:
> Hi all,
> 
> I'm looking for an ITK filter to extract all the voxels with a certain 
> color from an Analyze file. Colored areas will be "condensed" in one or 
> two islands, so I think it should be a pretty easy segmentation to do.
> Could you suggest an ITK class to perform a fast (even if not so 
> precise) segmentation?
> 
> Thank you very much,
> Arturo Caissut
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