python从笔记本摄像头定时截图（图带时间戳）

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楼主 | 2021-8-30 15:01 | 显示全部楼层 |阅读模式

定时, 摄像头, python, TE, TI, RAM

为了定时记录表的数值，写个python代码：

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import cv2

import datetime







#获取摄像头视频

cap = cv2.VideoCapture(0)

# 获取视频宽度

frame_width = int(cap.get(cv2.CAP_PROP_FRAME_WIDTH))

# 获取视频高度

frame_height = int(cap.get(cv2.CAP_PROP_FRAME_HEIGHT))

#文字坐标

word_x = int(frame_width / 10)

word_y = int(frame_height / 10)



old_hour = datetime.datetime.now().hour

old_minute = datetime.datetime.now().minute

old_second = datetime.datetime.now().second



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(datetime.datetime.now().minute != old_minute):

        old_minute = datetime.datetime.now().minute

        #cv2.imwrite("./pic/test1.png",frame)

        time_str = datetime.datetime.now().strftime('%Y-%m-%d-%H-%M-%S')

        path = "./pic/" + time_str + ".png"

        print ("path=%s" % path)

        cv2.imwrite(path, frame)

        





    if cv2.waitKey(1) & 0xFF == ord('q'):

        break



cap.release()

cv2.destroyAllWindows()