1 简介
提出了基于引力搜索(GSA)的图像增强方法来解决图像增强搜寻过程中单一优化算法局部搜索能力不强的问题.
2 部分代码
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
function [S]= similarity(x)
[xlen ylen] =size(x);
S=zeros(xlen, ylen);
for i=2:1:xlen-1
for j=2:1:ylen-1
%--------------------------------------------------------
%Getting the values in the mask
maskGray=zeros(1,9) ;
resim=zeros(1,9) ;
for b=1:9;
[m]=ikomsu(b,i);
[n]=jkomsu(b,j);
[res]=resimdemi(m,n,xlen,ylen);
resim(b)=res;
if(resim(b)==1)
gray= x(m,n);
maskGray (b) =gray;
else
maskGray (b) =0;
end
end
% Distance and similarity are calculated between 9 pixels in the mask and the result is determined.
DN=150;
sim=0;
sum=0;
for b=1:9
sim (b)=similarity1(maskGray(b),maskGray(9),DN);
sum=sim(b)+sum;
end
%---------------------------------------------------------
S(i,j)=sum/9;
end
end
end
%------------------------------------------------------------------------
%FUNCTIONS
%-----------------------------------------------------------------------
function [ res ] = resimdemi(x,y,w,h )
if(x<1 || x>w-1 || y<1 || y>h-1)
res=0;
else
res=1;
end
end
function [x] = ikomsu( komsuno, i)
if(komsuno ==1)
x=i-1;
elseif(komsuno ==2)
x= i;
elseif(komsuno ==3)
x= i+1;
elseif(komsuno ==4)
x= i-1;
elseif(komsuno ==5)
x= i+1;
elseif(komsuno ==6)
x= i-1;
elseif(komsuno ==7)
x= i;
elseif(komsuno ==8)
x= i+1;
elseif(komsuno ==9)
x=i;
else
x=0;
end
end
function [y] = jkomsu( komsuno, j )
if(komsuno ==1)
y= j-1;
elseif(komsuno ==2)
y= j-1;
elseif(komsuno ==3)
y= j-1;
elseif(komsuno ==4)
y= j;
elseif(komsuno ==5)
y= j;
elseif(komsuno ==6)
y= j+1;
elseif(komsuno ==7)
y= j+1;
elseif(komsuno ==8)
y= j+1;
elseif(komsuno ==9)
y= j;
else
y=0;
end
end
function [sim] = similarity1( k, o, DN)
a=0;b=0;c=0;
a=abs(k-o);
% b=(abs(l-p))^2;
% c=(abs(m-r))^2;
% //Distance calculation based on the Euclidean relation
dist=a;
% % //Calculation of similarity based on linear function
arahes=dist/DN;
sim=1 - arahes;
% sim=exp(-dist/DN);
end
3 仿真结果
4 参考文献
[1]王平均. "基于MATLAB图像增强算法的应用." 辽宁高职学报 15.7(2013):4.
博主简介：擅长智能优化算法、神经网络预测、信号处理、元胞自动机、图像处理、路径规划、无人机等多种领域的Matlab仿真，相关matlab代码问题可私信交流。
部分理论引用网络文献，若有侵权联系博主删除。
