[Insight-users] Approximate segmentation of very high intensity region.

[Xi Liang]

I tried KMeans by splitting the subtraction images into two/three/four
clusters. 

The initial means is set to be (0, MaxIntensity) where the interval is equal
to MaxIntensity/#Clusters. I tested k=2,3,4,5 means method,  3-means method
shows best segmenation in my case by using the cluster with the highest
intensity mean as tumor mask. 

Kind regards,

Xi
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