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Is there any function in Mathematica that I can use for comparing the image histogram ? There is a built-in function in OpenCV cv2.compareHist for distance measures like chi-squared, correlation, intersection and Bhattacharya distance, but what about Mathematica?

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  • $\begingroup$ How about starting with ImageHistogram? $\endgroup$ – bill s Apr 28 '18 at 4:02
  • $\begingroup$ I know. But the point of my question is how you compare ImageHistogram of 2 Images for classification tasks ? There is a build-in function in OpenCV for distance measure like Chi-sqr, Correlation, intersection and BHATTACHARYYA distance , but what's about Mathematica ? $\endgroup$ – Dat Pham Hoang Apr 28 '18 at 4:15
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    $\begingroup$ ImageDistance seems to implement these histogram comparisons: MutualInformationVariation, NormalizedMutualInformationVariation, DifferenceNormalizedEntropy, EarthMoverDistance $\endgroup$ – Niki Estner Apr 28 '18 at 7:32
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Quoting Niki's comment:

ImageDistance seems to implement these histogram comparisons: "MutualInformationVariation", "NormalizedMutualInformationVariation", "DifferenceNormalizedEntropy", "EarthMoverDistance".

ImageDistance can be used to compare image histograms.

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