[人工智能]opencv-python控制笔记本摄像头

安装opencv-python

pip install opencv-python

开启线程

import cv2
import threading
class cameraThread(threading.Thread):
    def __init__(self):
        super().__init__()
        self.working = True
        self.cap = cv2.VideoCapture(0)
        self.cap.set(cv2.CAP_PROP_FRAME_WIDTH,640)
        self.cap.set(cv2.CAP_PROP_FRAME_HEIGHT,480) 
    def run(self):   
        while self.working:
            stau, image = self.cap.read()
            cv2.imshow('image',image)
            cv2.waitKey(1)
    def stop(self):
        self.working = False
        self.cap.release()
        cv2.destroyAllWindows()
      
ct=cameraThread() #实例化线程 
ct.start()#启动线程

关闭线程

ct.stop()#关闭线程