matlab代码给图片进行加雾处理

clear;clc; 
% close all; 
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img_name=‘.\sourcePicture\frame179.bmp‘;
I=imread（img_name）;

I1 = imresize（I[240320]）;
%  subplot（221）;
figure（1）;
imshow（I1）;
imagesc（I1）;
I1=double（I1）/255;

I = I1; 
% figure;imagesc（I）;  %һͼ

Im_dealt = I;
[rowcolz] = size（Im_dealt）;

landline = 0;
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Iw = I; 
A = 0.8;
m=100;
n=300;

tidx = 2; 
% for beta = 0.05:0.05:0.15
for beta = 0.20:0.05:0.30
    for i=1:3
         for j=landline+1:row
             for l=1:col    
              d（jl） = 1/（（j-landline）^.05 + 0.0001）;
                 d2（jl） = d（jl）*8;
                if j < landline 
                     d（jl） = -0.04*landline + 18;