opencv高斯滤波

import cv2 as cv
import numpy as np
from matplotlib import pyplot as plt
img = cv.imread('test.jpg')
img = cv.cvtColor(img,cv.COLOR_BGR2RGB)
blur = cv.GaussianBlur(img,(7,7),7)
plt.subplot(121),plt.imshow(img),plt.title('original')
plt.xticks([]),plt.yticks([])
plt.subplot(122),plt.imshow(blur),plt.title('Blurred')
plt.xticks([]),plt.yticks([])
plt.show()