H1 – First compared histogram.

H2 – Second compared histogram of the same size as  H1 .

method –

Comparison method that could be one of the following:

• cv2.HISTCMP_CORREL     Correlation

• cv2.HISTCMP_CHISQR     Chi-Square

• cv2.HISTCMP_CHISQR_ALT     Alternative Chi-Square

• cv2.HISTCMP_INTERSECT     Intersection

• cv2.HISTCMP_BHATTACHARYYA     Bhattacharyya distance

• cv2.HISTCMP_HELLINGER     Synonym for CV_COMP_BHATTACHARYYA

• cv2.HISTCMP_KL_DIV     Kullback-Leibler divergence