window = Tkinter.Tk(className='bla')
image = Image.open(argv[1] if len(argv) >= 2 else 'bla2.png')
canvas = Tkinter.Canvas(window, width=image.size[0], height=image.size[1])
canvas.pack()
image_tk = ImageTk.PhotoImage(image)
canvas.create_image(image.size[0] // 2, image.size[1] // 2, image=image_tk)

def callback(event):
    print('clicked at: ', event.x, event.y)
canvas.bind('<Button-1>', callback)
Tkinter.mainloop()
Capturing x,y Coordinates with Python PIL