# 导入库
import PIL
from PIL import Image,ImageTk
import cv2
from tkinter import *

# 设定宽度、高度
width, height = 800, 540
cap = cv2.VideoCapture(0)

# 设置宽度，高度
cap.set(cv2.CAP_PROP_FRAME_WIDTH, width)
cap.set(cv2.CAP_PROP_FRAME_HEIGHT, height)

root = Tk()
root.bind('<Escape>', lambda e: root.quit())


def motion(event):
  pos = ("(%s x %s)" % (event.x, event.y))
  possition_lb.configure(text=pos)

def show_frame():

    # 从摄像头获取图片
    _, frame = cap.read()
    frame = cv2.flip(frame, 1)

    # 将图片类型从 BGR 转换为 RGB 或 RGBA
    cv2image = cv2.cvtColor(frame, cv2.COLOR_BGR2RGB)

    # 转换为 PIL图片
    img = PIL.Image.fromarray(cv2image)
    imgtk = ImageTk.PhotoImage(image=img)
    img_lb.imgtk = imgtk

    # 配置要显示的​​​​​图片
    img_lb.configure(image=imgtk)

    # 10 毫秒后调用 show_frame()​​​​​​​
    img_lb.after(10, show_frame)

# 设定标签以显示视频​​​​​​​
img_lb = Label(root,width=800,height=560)
# 捕捉鼠标
img_lb.bind('<Motion>',motion)
img_lb.pack()

text_lb = Label(root,width=15,height=2, text= "Mouse position :")
text_lb.place(x=2, y=575)
# 设定标签以显示位置​​​​​​​
possition_lb = Label(root,width=20,height=2)
possition_lb.place(x=100, y=575)

show_frame()
root.geometry("800x600")
root.mainloop()