画图
#画线 blue = (0,0,255) cv2.line(image, (300,0), (150,150), blue, 5) show(image) #画矩形 red = (255,0,0) cv2.rectangle(image, (10,10), (60,60), red, 2) show(image) #画圆形 image = np.zeros((300,300,3),dtype='uint8') (cX, cY) = image.shape[1]//2, image.shape[0]//2 white = (255,255,255) for r in range(0,151,15): cv2.circle(image, (cX,cY), r, white, 2) show(image)