ImageViewer 4

import tkinter as tk
import os
try:
    from PIL import Image, ImageTk
except ModuleNotFoundError:
    os.system('pip install pillow')
    from PIL import Image, ImageTk
_root = frame1

imagelabel = tk.Label(_root, text="Unable to load image", bg='white', anchor='center')
imagelabel.pack(anchor='center', expand=True, fill='both')

def loadimage(path):
    global imagelabel
    global ImageTk
    global Image
    imagelabel.image = ImageTk.PhotoImage(Image.open(path))
    imagelabel.config(image=imagelabel.image)