python中的opencv模塊讀取筆記本攝像頭並實時顯示時間信息

利用python的opencv模塊讀取攝像頭來獲取圖像，同時調用datetime模塊來讀取實時的時間並顯示在屏幕上

代碼如下

import cv2
import datetime

#獲取攝像頭視頻
cap = cv2.VideoCapture(0)
# 獲取視頻寬度
frame_width = int(cap.get(cv2.CAP_PROP_FRAME_WIDTH))
# 獲取視頻高度
frame_height = int(cap.get(cv2.CAP_PROP_FRAME_HEIGHT))
#文字坐標
word_x = int(frame_width / 10)
word_y = int(frame_height / 10)

while (cap.isOpened()):
    ret,frame = cap.read()
    time_text = datetime.datetime.now().strftime('%Y-%m-%d %H:%M:%S')
    cv2.putText(frame, time_text, (word_x,word_y),
                cv2.FONT_HERSHEY_SIMPLEX,1,(55,255,155),2)
    cv2.imshow("real_time",frame)
    if cv2.waitKey(1) & 0xFF == ord('q'):
        break

cap.release()
cv2.destroyAllWindows()

運行結果如圖所示