gui显示摄像头视频

from tkinter import *
import cv2
from PIL import Image, ImageTk



def video_loop():
    success, img = camera.read()  # 从摄像头读取照片
    if success:
        cv2image = cv2.cvtColor(img, cv2.COLOR_BGR2RGBA)  # 转换颜色从BGR到RGBA
        current_image = Image.fromarray(cv2image)  # 将图像转换成Image对象
        imgtk = ImageTk.PhotoImage(image=current_image)
        panel.imgtk = imgtk
        panel.config(image=imgtk)
        root.after(1, video_loop)


url = "http://192.168.1.142:81/videostream.cgi?user=admin&pwd=888888&.mjpg"
camera = cv2.VideoCapture(0)  # 摄像头

root = Tk()
root.title("opencv + tkinter")
# root.protocol('WM_DELETE_WINDOW', detector)

panel = Label(root)  # initialize image panel
panel.pack(padx=10, pady=10)
root.config(cursor="arrow")


video_loop()

root.mainloop()
# 当一切都完成后，关闭摄像头并释放所占资源
camera.release()
cv2.destroyAllWindows()

url是错的 每次连接摄像头查一查端口就行了