PYTHON+OPENCV read video, call camera

Reference

Import Cv2import NumPy

Create a camera object

Cap = Cv2. Videocapture ("Videotest/test1.mp4") #参数为视频文件目录

Frames-by-frame display for video playback

While 1:    ret, frame = Cap.read () #读取    cv2.imshow ("Capture", frame) #显示    if Cv2.waitkey (100) & 0xff = = Ord (' q '): #按q退出 break        

Releasing Camera objects and windows

Cap.release () cv2.destroyallwindows ()

Full Code

Import Cv2import Numpycap = Cv2. Videocapture (1) #调整参数实现读取视频或调用摄像头while 1:    ret, frame = Cap.read ()    cv2.imshow ("cap", frame)    if Cv2.waitkey & 0xff = = Ord (' q '):        breakcap.release () cv2.destroyallwindows ()

directory Structure

Read Video Run Results

Call the built-in camera

Cap = Cv2. Videocapture (0)    #调用笔记本内置摄像头

call the USB camera

Cap = Cv2. Videocapture (1)

Call Camera Run Results

PYTHON+OPENCV read video, call camera