Finally for the question in
i have found mean and for k means i get error
By this way i have found mean
next i tried to do k means
I get error
??? Error using ==> kmeans>batchUpdate at 435 Empty cluster created at iteration 1.
Error in ==> kmeans at 336 converged = batchUpdate();
Error in ==> Samp2 at 52 k3(:,:,i2)=kmeans(kll,3);
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"empty cluster" can occur by chance (kmeans does random initialization of positions), but more likely is the possibility that your points naturally form fewer than 3 clusters.
I received the above error too.. I am applying kmeas clustering on a Canny's Edge detected image with k param as 2.
I3 = imclose(I2,strel('disk',20)); Imed = medfilt2(rgb2gray(I3)); Ifilt = edge(Imed,'canny');
%I3 = applycform(Ifilt,makecform('srgb2lab')); %I = double(I3(:,:,2)); I = double(Ifilt(:,2)); szx2 = size(I,1); szy2 = size(I,2);
I = reshape(I,szx2*szy2,1); nColors = 2;
%% %%Image Manipulation Kmeans...............................................
[idx ct] = kmeans(I,nColors);
However i Received the empty cluster error. How to avoid the error. I need the edge detected image as well.