Using PIL to resize an image produces no image

[Calab]

I am selecting a file using a tkinter file dialog. I open the file, resize it, create a PhotoImage and then update my canvas. I end up getting no image.

Can someone explain how I can open an image file, resize it, and update my canvas with the resized image?

My code:

from PIL import ImageTk, Image   # To handle JPG files
import tkinter as tk
from tkinter import filedialog as fd

new_image = None


def change_image():
    global new_image
    filetypes = (("PNG image", "*.png"),
                 ("JPG image", "*.jpg"),
                 ("All files", "*.*"),)
    file_picked = fd.askopenfilename(filetypes=filetypes)
    picked_image = Image.open(file_picked)
    resized_image = picked_image.resize((5, 5))
    new_image = ImageTk.PhotoImage(resized_image)
    my_canvas.itemconfigure(canvas_image, image=new_image)


# Start
interface = tk.Tk()

my_canvas = tk.Canvas(interface, width=700, height=700)
my_image = tk.PhotoImage()
open_button = tk.Button(interface, text="Open image", command=change_image)

canvas_image = my_canvas.create_image((0, 0), anchor="nw", image=my_image)
my_canvas.pack()
open_button.pack()

interface.mainloop()

[menator01]

This works for me

import tkinter as tk
from PIL import ImageTk, Image
from tkinter import filedialog as fd

def change_image():
    filetypes = (
        ('PNG Image', '*.PNG *.png'),
        ('JPG Image', '*.JPG *.jpg'),
        ('All Files', '*.*')
    )

    file_picked = fd.askopenfilename(filetypes=filetypes)
    picked_image = Image.open(file_picked)
    
    resized_image = picked_image.resize((50,50))
    new_image = ImageTk.PhotoImage(resized_image)
    new_image.bak = new_image
    my_canvas.itemconfigure(img, image=new_image)


interface = tk.Tk()

my_canvas = tk.Canvas(interface, width=700, height=700, bg='white')
my_canvas.pack(expand=True, fill='both')
img = my_canvas.create_image(0,10, anchor='nw')

open_button = tk.Button(interface, text='Open Image', command=change_image)
open_button.pack(pady=8)

interface.mainloop()

[deanhystad]

Maybe the problem is you resize the image to be 5 x 5. When you change the size to something larger, that you can actually see. It works fine.