clustering the image using k menas.

Hello, i have to clustering, greyscale and rgb image,

what is the procedure for clustering image ?

IDX = kmeans(X,k) is defined kmeans.

what is X in kmeans as input in the image ?

Thanks.

Answer 1

[Image Analyst]

As background for others who wanted to try something with the Statistics Toolbox (which I don't have), I suggested a 1D vector of all the image gray level values, grayImage(:), for his "X" in http://www.mathworks.com/matlabcentral/answers/121795#comment_202439. But I couldn't test it for him because I don't have the Stats toolbox.

[Tomas]

if so I'll try writes error

??? Error using ==> kmeans>batchUpdate at 436
Empty cluster created at iteration 1.

Error in ==> kmeans at 337
        converged = batchUpdate();

Error in ==> Untitled3 at 29
[IDX,ctrs] = kmeans(grayImage(:),3)

[Walter Roberson]

http://www.mathworks.co.uk/matlabcentral/answers/120896-error-occurred-while-executing-a-kmeans-function