def plot_masked_centroid_image(image, segmap):
    c_image = colors.quantize_from_centroid(image, segmap)
    f = pp.figure()
    mask = np.ones(c_image.shape, "bool")
    mask.shape = (-1, 3)
    mask[segmap.ravel() <= 0] = 0
    pp.imshow(np.ma.MaskedArray(c_image, mask=mask))
    f.axes[0].xaxis.set_visible(False)
    f.axes[0].yaxis.set_visible(False)
    return f
def mean_color_image(image, segmap):
    c_image = colors.quantize_from_centroid(image, segmap)
    return c_image