I am trying to add images to root be defining function but its not working, without function it is loading image, how can i add image using function

Question

This is my python 3 code, here i want to get images in tkinter window by defining function for adding image but image is not loading

from tkinter import *
import time
import os
from PIL import Image, ImageTk

splash_root = Tk()
splash_root.title("splash screen")
splash_root.geometry("1000x600")

def main_window():

        c = Canvas(splash_root, width=1000, height=600, background='white')
        c.pack()
        p1 = ImageTk.PhotoImage(file="front.gif")
        c.create_image(0, 0, image=p1, anchor="nw")


main_window()

mainloop()