如何在tkinter中停止重叠画布图像

import tkinter as tk
root = tk.Tk()

canvas = tk.Canvas(root, width=500, height=500)
canvas.pack()

image = canvas.create_image(0, 0, anchor=tk.NW, image=my_image)

def stop_image():
    canvas.delete(image)

stop_button = tk.Button(root, text="停止", command=stop_image)
stop_button.pack()

root.mainloop()

import tkinter as tk

def stop_image():
    canvas.delete(image)

root = tk.Tk()
canvas = tk.Canvas(root, width=500, height=500)
canvas.pack()

my_image = tk.PhotoImage(file="image.png")
image = canvas.create_image(0, 0, anchor=tk.NW, image=my_image)

stop_button = tk.Button(root, text="停止", command=stop_image)
stop_button.pack()

root.mainloop()