[Insight-users] Mutual information metric

[王宇亭]

Hi all.
    In the class of MutualInformationImageToImageMetric, there's a method called getvalue() which computes the value of the mutual information between to images, but  I just can't find the definition of this function, I mean the piece of codes that tell you how to compute the mutual information, does anyone know where I can find it?
    Thanks a lot!
 
    Micheal
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