计算机视觉

非线性平滑滤波算法（中值滤波），显示图3-9

# -*- coding: utf-8 -*-
# @Time    : 2021/4/15 14:58
# @Author  : weiwei
# @File    : 3.9.py
from scipy import ndimage
from skimage import data, util
from matplotlib import pyplot as plt

img = data.astronaut()[:, :, 0]
noise_img = util.random_noise(img, mode='s&p', seed=None, clip=True)
n = 3
new_img = ndimage.median_filter(noise_img, (n, n))
plt.figure()
plt.subplot(1, 3, 1)
plt.imshow(img, cmap='gray')
plt.subplot(1, 3, 2)
plt.imshow(noise_img, cmap='gray')
plt.subplot(1, 3, 3)
plt.imshow(new_img, cmap='gray')
plt.show()

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