% 可能是聚類後的影象資料不匹配，用如下程式碼試試 iidx = uint8(iidx);level = graythresh(iidx);imageout = im2bw(iidx,level);imshow(imageout);

function[labels]=kmeans_clustering(data,k)

[num,~]=size(data);

ind=randperm(num);

ind=ind(1:k);

centers=data(ind,:);

d=inf;

labels=nan(num,1);

whiled>0

labels0=labels;

dist=pdist2(data,centers);

[~,labels]=min(dist,[],2);

d=sum(labels0~=labels);

fori=1:k

centers(i,:)=mean(data(labels==i,:),1);

end

end

end