GUI Photo Previewer App

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

# Initialize the window
window = tk.Tk()
window.title("Image Viewer")

# Function to open an image file
def open_image():
    file_path = filedialog.askopenfilename(filetypes=[("Image Files", "*.jpg;*.jpeg;*.png;*.gif")])
    if file_path:
        image = Image.open(file_path)
        image.thumbnail((400, 400))
        photo = ImageTk.PhotoImage(image)
        image_label.configure(image=photo)
        image_label.image = photo

# Create a button to open an image file
open_button = tk.Button(window, text="Open Image", command=open_image)
open_button.pack()

# Create a label to display the image
image_label = tk.Label(window)
image_label.pack()

window.mainloop()