im loading a pic onion.png and using function kmeans(x,k) i assigned k=5. now problem is that i cant find what 'x' is and how to use it? i want to cluster whole image based on its 5 colors. never used matlab so dont know how to use the functions

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Laila Hayat
Laila Hayat 2012-11-27
Code that i wrote till now
a=imread('onion.png');
imshow(a);
ab=double(a);
cluster=kmeans(ab, 5);
finalImage=reshape(cluster ,5);
figure, imagesc(finalImage)

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Image Analyst
Image Analyst 2012-11-27
Do you have the stats and image processing toolboxes? If so, just follow this example: http://www.mathworks.com/products/demos/image/color_seg_k/ipexhistology.html Or else get the colors one at a time using any of the methods in my File Exchange: http://www.mathworks.com/matlabcentral/fileexchange/?term=authorid%3A31862

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