image.py 文件源码

def visualize_derivatives(image):
    laplacian = scipy.ndimage.filters.laplace(image)
    lhist = mean_center(
        blur(exposure.equalize_hist(unitize(laplacian)),1))
    plt.imshow(lhist,
        origin='lower',interpolation='nearest',cmap='gray',extent=(0,64,)*2)
    plt.title('Laplacian')
    return gradient, laplacian