西电数据挖掘大作业k-means和k-medoids(13)

西电数据挖掘大作业k-means和k-medoids

sample=reshape(I,v*num,1);%Ñù±¾¼¯ k=2; %¾ÛÀàÖÐÐĵÄÊýÄ¿

%%%%%%%%%K_means%%%%%%%%

[y med]=k_medoids(sample,k); %%%%%%%%图像显示¾%%%%%%%% I3=sample;

if(med(1,1)>=med(2,1))

F0=255;F1=0;

else

F0=0;F1=255;

end

for i=1:num*v

if(y(i,1)==1)

I3(i,1)=F0;

else

I3(i,1)=F1;

end

end

I3=reshape(I3,num,v);

figure(1)

subplot(1,4,1);

imshow(I0);

title('原图像');

subplot(1,4,2);

imshow(I1);

title('加噪声后的图像');

subplot(1,4,3);

imshow(I2);

title('灰度图像');

subplot(1,4,4);

imshow(I3);

title('二值化图像');