时间：2021-02-24 09:38:38 | 栏目：Python代码 | 点击：次
如下所示：
#coding:utf-8
import cv2
import sys
from PIL import Image
def CatchUsbVideo(window_name, camera_idx):
cv2.namedWindow(window_name)
# 捕捉摄像头
cap = cv2.VideoCapture(camera_idx)
while cap.isOpened():
ok, frame = cap.read() # 读取一帧数据
if not ok:
break
# 显示图像
cv2.imshow(window_name, frame)
c = cv2.waitKey(10)
if c & 0xFF == ord('q'):
break
# 释放摄像头并销毁所有窗口
cap.release()
cv2.destroyAllWindows()
if __name__ == '__main__':
CatchUsbVideo("FaceRect", 0)