de_noise.py 文件源码

def add_gauss_noise(image,r=10):
    suanzi = np.fromfunction(func, (r, r), sigma=5)
    image = np.array(image)
    image2 = signal.convolve2d(image, suanzi, mode="same")
    image2 = (image2 / float(image2.max())) * 255
    return np.array(image2)