第一种办法 单张图获取

网页打开
#//http://192.168.1.82/webcapture.jpg?command=snap&channel= 1   网页打开直接抓一张图

python

#//http://192.168.1.83/webcapture.jpg?command=snap&channel= 1
import cv2
url = 'http://192.168.1.83/webcapture.jpg?command=snap&channel=1'
savepath="./1.jpg"
cap = cv2.VideoCapture(url)
while(cap.isOpened()): 
    ret, frame = cap.read()
    cv2.imshow('frame',frame)
    cap = cv2.VideoCapture(url)
    #if cv2.waitKey(1) & 0xFF == ord('q'):
     #   break
    if cv2.waitKey(1) & 0xFF == ord('s'):
        cv2.imwrite(savepath, frame,[int(cv2.IMWRITE_JPEG_QUALITY), 100])
        #cv2.imwrite("D:/test.png", frame)
        break
cap.release()
cv2.destroyAllWindows()

第二种办法

rtsp连续流

import cv2 
cap = cv2.VideoCapture("rtsp://192.168.1.151：554/useradmin&password=&channel=1&stream=0.sdp?") #0.sdp主码流 1次码流
ret,frame = cap.read()
while ret:
    ret,frame = cap.read()
    cv2.imshow("frame",frame)
    if cv2.waitKey(1) & 0xFF == ord('q'):
        break
cv2.destroyAllWindows()
cap.release()