基于最大熵的粒子群算法的多阈值图像分割

对数熵 指数熵 TSALLIS熵的粒子群算法图像分割，还给了费优化算法的程序 可以比较算法改进性

clear
clc
tic
f=imread（‘lena.jpg‘）;
z=f;
I=rgb2gray（z）;
figureimshow（I）;
counts=imhist（I）;
[mn]=size（I）;
N=m*n;
for i=1:256
    p（i）=counts（i）/N;
end
for k1=0:253
    for k2=k1+1:254
        for k3=k2+1:255
            w0=0;
            w1=0;
            w2=0;
            w3=0;
            for i=0:255
                if i<=k1
                    w0=w0+p（i+1）;
                elseif i<=k2
                    w1=w1+p（i+1）;
                elseif i<=k3
                    w2=w2+p（i+1）;
                else
                    w3=w3+p（i+1）;
                end
            end
            f1=0;
            f2=0;
            f3=0;
            f4=0;
            if w0*w1*w2*w3>1e-10
                for i=0:k1
                    if p（i+1）>1e-10
                        f1=f1+p（i+1）/w0*log（p（i+1）/w0）;
                    end
                end
                for i=k1+1:k2
                    if p（i+1）>1e-10
                        f2=f2+p（i+1）/w1*lo

 属性            大小     日期    时间   名称
----------- ---------  ---------- -----  ----
     目录           0  2010-07-23 10:56  粒子群优化算法\
     目录           0  2010-07-23 10:49  粒子群优化算法\对数熵\
     文件        2079  2010-07-22 18:16  粒子群优化算法\对数熵\duishushang3D.m
     目录           0  2010-07-22 18:19  粒子群优化算法\对数熵\三阈值\
     文件        4248  2010-07-22 16:12  粒子群优化算法\对数熵\三阈值\duishushang3D.m
     文件        1245  2010-07-22 17:16  粒子群优化算法\对数熵\三阈值\ThetaFit.m
     目录           0  2010-07-22 18:19  粒子群优化算法\对数熵\双阈值\
     文件        4225  2010-07-22 14:37  粒子群优化算法\对数熵\双阈值\duishushang2D.m
     文件        1000  2010-07-22 10:57  粒子群优化算法\对数熵\双阈值\ThetaFit.m
     目录           0  2010-07-22 18:22  粒子群优化算法\指数熵\
     文件        1435  2010-07-21 09:57  粒子群优化算法\指数熵\zhishushang2D.m
     目录           0  2010-07-22 18:23  粒子群优化算法\指数熵\三阈值\
     文件        1252  2010-07-22 18:08  粒子群优化算法\指数熵\三阈值\ThetaFit.m
     文件        3880  2010-07-22 18:02  粒子群优化算法\指数熵\三阈值\zhishushang3D.m
     目录           0  2010-07-22 18:15  粒子群优化算法\指数熵\双阈值\
     文件        1042  2010-07-22 11:42  粒子群优化算法\指数熵\双阈值\ThetaFit.m
     文件        3814  2010-07-22 18:23  粒子群优化算法\指数熵\双阈值\zhishushang2D.m
     目录           0  2010-07-23 10:34  粒子群优化算法\Ｔ熵\
     文件        1943  2010-07-23 10:22  粒子群优化算法\Ｔ熵\sanyuzhiTSALLIS.m
     文件        1670  2010-07-23 10:27  粒子群优化算法\Ｔ熵\TSALLIS2D.m
     目录           0  2010-07-23 10:48  粒子群优化算法\Ｔ熵\三阈值\
     文件        1321  2010-07-23 10:46  粒子群优化算法\Ｔ熵\三阈值\ThetaFit.m
     文件        3880  2010-07-23 10:42  粒子群优化算法\Ｔ熵\三阈值\zhishushang3D.m
     目录           0  2010-07-23 10:41  粒子群优化算法\Ｔ熵\双阈值\
     文件         933  2010-07-23 10:41  粒子群优化算法\Ｔ熵\双阈值\ThetaFit.m
     文件        3811  2010-07-23 10:39  粒子群优化算法\Ｔ熵\双阈值\TSALLIS2D.m