Q3Support.py 文件源码

def calHist(frame,rect):
        r,c,h,w=rect
        roi = frame[r:r+h, c:c+w]
        mask = cv2.inRange(roi, np.array((0.)), np.array((255.)))
        roi_hist = cv2.calcHist([roi],[0],mask,[255],[0,255])
        roi_hist=cv2.normalize(roi_hist,roi_hist,0,255,cv2.NORM_MINMAX)
        return roi_hist