image segmentation help

I have this code for clustering the data set which is running successfilly but i want to use this code for image segmentation.
I need your help, plz help me....
Thnks in advance
function y=kMeansCluster(m,k,isRand)
if nargin<3, isRand=0; end
if nargin<2, k=1; end
[maxRow, maxCol]=size(m)
if maxRow<=k,
y=[m, 1:maxRow];
else
if isRand,
p = randperm(size(m,1));
for i=1:k
c(i,:)=m(p(i),:)
end
else
for i=1:k
c(i,:)=m(i,:)
end
end
temp=zeros(maxRow,1);
while 1,
d=DistMatrix(m,c)
[z,g]=min(d,[],2)
if g==temp,
break;
else
temp=g;
end
for i=1:k
f=find(g==i)
if f
c(i,:)=mean(m(find(g==i),:),1)
end
end
end
y=[m,g]
end
function d=DistMatrix(A,B)
[hA,wA]=size(A);
[hB,wB]=size(B);
if wA ~= wB, error(' second dimension of A and B must be the same'); end
for k=1:wA
C{k}= repmat(A(:,k),1,hB);
D{k}= repmat(B(:,k),1,hA);
end
S=zeros(hA,hB);
for k=1:wA
S=S+(C{k}-D{k}').^2;
end
d=sqrt(S)

 Accepted Answer

Image Analyst
Image Analyst on 27 Feb 2012

0 votes

Here's a Mathworks example where they've used k-means clustering for color segmentation: http://www.mathworks.com/products/demos/image/color_seg_k/ipexhistology.html

More Answers (0)

Categories

Find more on Statistics and Machine Learning Toolbox in Help Center and File Exchange

Tags

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!