#coding:utf-8'''毛玻璃效果'''import cv2import numpy as npsrc = cv2.imread('datas/images/f1.jpg')dst = np.zeros_like(src)rows,cols,_ = src.shapeoffsets = 5random_num = 0for y in range(rows - offsets):    for x in range(cols - offsets):        random_num = np.random.randint(0,offsets)        dst[y,x] = src[y + random_num,x + random_num]cv2.imshow('src',src)cv2.imshow('dst',dst)cv2.waitKey()cv2.destroyAllWindows()