Question

python中如何读取摄像

Answer 1

# coding=utf-8

# Camera
# Author:   Res_TP
# 2018.11.29

# 使用以下命令安装 Pillow 和 openCV

# python -m pip install numpy
# python -m pip install matplotlib
# python -m pip install Pillow
# python -m pip install opencv-python

import cv2
from PIL import Image, ImageDraw

if __name__ == "__main__":
    camera = cv2.VideoCapture(0)
    cv2.namedWindow("Camera")
    
    if not camera.isOpened():
        print("Camera coudn't be found.")
        exit(0)
    
    while True:
        status, img = camera.read()
        if status == False:
            print("Camera closed.")
            break
        
        key = cv2.waitKey(1)
        
        if cv2.getWindowImageRect("Camera")[0] == -1:
            break
        
        cv2.imshow("Camera", img)
    
    camera.release()
    cv2.destroyAllWindows()