mov.py

root = Tk() 
frame=[] 
for i in range(1,9):
    fname=str(i)+".png"
    frame+=[PhotoImage(file=fname)] 

wrap = Canvas(root, width=180, height=50)
wrap.pack() 

def diferencia(imagen1, imagen2):
    pixeles1 = imagen1.load()
    pixeles2 = imagen2.load()
    x, y = imagen1.size
    imagen_nueva_prom = Image.new("RGB", (x, y))
    cor = []
    for a in range(x):
        for b in range(y):
            try:
                dif = pixeles1[a, b][0]-pixeles2[a,b][0]
                if dif > 255:
                    dif = 255
                    
                if dif < 0:
                    dif = 0
                    cor.append((a,b))
                imagen_nueva_prom.putpixel((a, b), (dif, dif, dif))
            except:
                pass
    
    return imagen_nueva_prom, cor
    
def do_animation(currentframe): 
        def do_image():
                wrap.create_image(0,0, anchor=NW, image=frame[currentframe], tag='ani')
                i1 = cambiar_agrises(str(currentframe)+".png")
                i2 = cambiar_agrises(str(currentframe+1)+".png")
                diff, cor = diferencia(i1, i2)
                histo = diff.histogram()
                lenH = sum(histo)
                prob = []
                for i in histo:
                    prob.append(float(i)/lenH)
                entropia = []
                for i in prob:
                    if i != 0:
                        entropia.append(i * log(i, 2))
                entropia = - sum(entropia)
                diff, cor = diferencia(i1, i2)
                if entropia > 2.0:
                    print "Movimiento detectado"
                    wrap.create_line(cor[0][0], cor[0][1], cor[len(cor)-1][0], cor[len(cor)-1][1], arrow="last")
                else:
                    print "No hay movimiento"
                
        wrap.delete('ani')
        try:
                do_image() 
        except IndexError: 
                currentframe = 1
                do_image() 
        wrap.update_idletasks() 
        currentframe = currentframe + 1 
        root.after(500, do_animation, currentframe)
    
root.after(5, do_animation, 0)
root.mainloop()