代碼在git

#!/usr/bin/env python3 # -*- coding: utf-8 -*- """ Created on Wed Dec 8 09:46:29 2021@author: ledi """import numpy as np import cv2 from matplotlib import pyplot as pltdef medianBlur(image,ksize=2,):'''中值濾波，去除椒鹽噪聲args:image：輸入圖片數據,要求為灰度圖片ksize：濾波窗口大小 return：中值濾波之后的圖片'''rows,cols = image.shape[:2]#輸入校驗half = ksize//2startSearchRow = halfendSearchRow = rows-half-1startSearchCol = halfendSearchCol = cols-half-1dst = np.zeros((rows,cols),dtype=np.uint8)#中值濾波for y in range(startSearchRow,endSearchRow):for x in range(startSearchCol,endSearchCol):window = []for i in range(y-half,y+half+1):for j in range(x-half,x+half+1):window.append(image[i][j])#取中間值 window = np.sort(window,axis=None) if len(window)%2 == 1: medianValue = window[len(window)//2]else:medianValue = int((window[len(window)//2]+window[len(window)//2+1])/2)dst[y][x] = medianValuereturn dst image = cv2.imread('/home/ledi/桌面/clion/learn_orbslam/cpp_project_learn/OPENCV/python_code/middle.png')med=medianBlur(image)cv2.imwrite('med.png',med)

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