均值滤波Matlab程序

自己小编的均值滤波器程序 源代码 clc clear %彩色图像灰度化 a=imread('C:\Users\wk\Desktop\2\IMG_20130423_143258.bmp'); g=rgb2gray(a); figure(1) imshow(g) g=uint16(g); title('灰度图像'); [m,n]=size(g); f=zeros(m,n); f(1,1)=(g(1,1)+g(1,2)+g(2,1)+g(2,2)); f(m,1)=1/4*(g(m-1,1)+g(m-1,2)+g(m,1)+g(m,2)); f(1,n)=1/4*(g(1,n-1)+g(1,n)+g(2,n-1)+g(2,n)); f(m,n)=1/4*(g(m-1,n-1)+g(m-1,n)+g(m,n-1)+g(m,n)); for i=2:m-1 f(i,1)=1/6*(g(i-1,1)+g(i,1)+g(i+1,1)+g(i-1,2)+g(i,2)+g(i+1,2)); f(i,n)=1/6*(g(i-1,n)+g(i,n)+g(i+1,n)+g(i-1,n-1)+g(i,2)+g(i+1,n-1)); end for j=2:n-1 f(1,j)=1/6*(g(1,j-1)+g(1,j)+g(1,j+1)+g(2,j-1)+g(2,j)+g(2,j+1)); f(m,j)=1/6*(g(m-1,j-1)+g(m-1,j)+g(m-1,j+1)+g(m,j-1)+g(m,j)+g(m,j+1)); end for i=2:m-1 for j=2:n-1 f(i,j)=1/9*(g(i-1,j-1)+g(i,j-1)+g(i+1,j-1)+g(i-1,j)+g(i,j)+g(i+1,j)+g(i-1,j+1)+g(i,j+1)+g(i+1,j+1)); end end f=uint8(f); figure(2) imshow(f); title('junzhi灰度图像')