import?cv2?
import?numpy?as?np?
#camera=cv2.VideoCapture（0）?
camera?=?cv2.VideoCapture（“rtsp://admin:admin12345@192.168.1.121:554/h264/ch1/main/av_stream“）
firstframe=None?
while?True:?
????retframe?=?camera.read（）?#grabbed原來參安數
????#?判斷視頻是否打開?
????#?if?（camera.isOpened（））:?
????#?????print（‘Open‘）?
????if?not?ret:????????#如果沒有捕獲，中斷程序
????????break?
????gray=cv2.cvtColor（framecv2.COLOR_BGR2GRAY）?#?對幀進行預處理，先轉灰度圖
????gray=cv2.GaussianBlur（gray（2121）0）???????#?用高斯濾波進行模糊處理
????if?firstframe?is?None:
????????firstframe=gray?
????????continue??????
????frameDelt