How to compute “EMD” for 2 numpy arrays i.e“histogram” using opencv under python?

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since I'm new to opencv,I don't knw how to apply the cv.CalcEMD2 function on numpy arrays.
I have two arrays >

a=[1,2,3,4,5]
b=[1,2,3,4]

How can I transfer numpy array to CVhistogram and fromCvhistogram to the function parameter "signature".
I would like anyone answers the question to explain any used opencv functions through the provided solution.

'EMD" >> Earth Movers Distance.

Posted 3-Apr-13 8:06am

HKmal

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