histogram.py 文件源码

def histogram(self, image, mask=None):
        #Extract a 3D color histogram from the masked region of the image, using
        #the supplied number of bins per channel, then normalize the histogram
        new_im = imcrop(image)
        hist = cv2.calcHist([new_im], [0, 1, 2], mask, self.bins,[0, 256, 0, 256, 0, 256])
        hist = cv2.normalize(hist).flatten()
        return hist