example.py 文件源码

def gray_histogram_cmp_bhatta(self):
        self.threshold = .07

        gray_i = cv2.cvtColor(self.image_i, cv2.COLOR_BGR2GRAY)
        hist_i = cv2.calcHist([gray_i], [0], None, [256], [1, 256])

        gray_j = cv2.cvtColor(self.image_j, cv2.COLOR_BGR2GRAY)
        hist_j = cv2.calcHist([gray_j], [0], None, [256], [1, 256])

        self.measure = cv2.compareHist(hist_i, hist_j, cv.CV_COMP_BHATTACHARYYA)
        self.assertGreater(self.measure, self.threshold)