tpendiente.py

def toma_pendiente(imagen): # obtenemos la pendiente 
    Gx=gx
    Gy=gy
    print Gx
    print Gy
    imagen=imagen.load()
    ancho,alto=imagen.size
    pendiente=numpy.empty((ancho, alto))
        
    for i in range(ancho):
        for j in range(alto):
            if Gx[i,j]!=0 and Gy[i,j]!=0:
                m=0
            elif Gx[i,j]==0 and Gy[i,j]==0:
                m=1
            elif Gy[i,j]<=0 and Gx[i,j]==0:
                m=2
            elif Gy[i,j]>=0 and Gx[i,j]==0:
                m=3
            elif Gx[i,j]<=0 and Gy[i,j]==0:
                m=4
            elif Gx[i,j]>=0 and Gy[i,j]==0:
                m=5
               	pendiente[i,j]=m
                    
    print 'termino'
    return pendiente