Python 将mask盖在图片上

def addAnnotation(image_frame,label_frame,i,save_path):
    img1 = cv2.imread(image_frame)
    img2 = cv2.imread(label_frame)
    alpha = 0.7
    beta = 1 - alpha
    gamma = 0
    img_add = cv2.addWeighted(image_frame, alpha, label_frame, beta, gamma, dtype = cv2.CV_32F)
    cv2.imwrite(os.path.join(save_path,str(i).zfill(3)+'.jpg'),img_add)   
if __name__ == '__main__':
    addAnnotation(image_frame,label_frame,i,save_path)