Как закруглить углы изображения в tkinter python?

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from PIL import Image, ImageDraw, ImageTk
import tkinter as tk

def create_rounded_rect(image, radius):
    width, height = image.size
    circle = Image.new('L', (radius*2, radius*2), 0)
    draw = ImageDraw.Draw(circle)
    draw.ellipse((0, 0, radius*2, radius*2), fill=255)
    alpha = Image.new('L', image.size, 255)
    alpha.paste(circle.crop((0, 0, radius, radius)), (0, 0))
    alpha.paste(circle.crop((0, radius, radius, radius*2)), (0, height-radius))
    alpha.paste(circle.crop((radius,0,radius*2,radius)), (width-radius,0))
    alpha.paste(circle.crop((radius, radius, radius*2, radius*2)), (width-radius, height-radius))
    image.putalpha(alpha)
    return image

root = tk.Tk()

# open the image file
image_file = Image.open("image.jpg")
# resize the image
image_file = image_file.resize((300, 300), Image.ANTIALIAS)
# create the rounded image
rounded_image = create_rounded_rect(image_file, 50)
# convert the image to PhotoImage format
photo_image = ImageTk.PhotoImage(rounded_image)

# create the label and display the image
label = tk.Label(root, image=photo_image)
label.pack()

root.mainloop()