import tkinter

root = tkinter.Tk()


C = tkinter.Canvas(bg="blue", height=250, width=300)
filename = tkinter.PhotoImage(file = r".\res\abc.png")
background_label = tkinter.Label(image=filename)
background_label.place(x=0, y=0, relwidth=1, relheight=1)

C.pack()

root.mainloop()