%matplotlib inline
def visualize(img, detect):
    img = gray2rgb(img)
    plt.figure()
    fig,ax = plt.subplots(1)
    ax.imshow(img)
    for i in range(len(detect1)):
        rect = patches.Rectangle((detect[i][1], detect[i][0]), 100, 40, linewidth=1, edgecolor='r', facecolor='none')

    ax.add_patch(rect)