calculating centroids

I have divided the video into frames ,can u tell how to calculate cluster centroids using k means algorithm please

Answer 1

[Image Analyst]

Here's the demo:

http://www.mathworks.com/products/demos/image/color_seg_k/ipexhistology.html

After that, if you need spatial centroids (x,y,z locations) in addition to color centroids (the RGB values of the color clusters' centroids), it's a simple matter to find centroids using bwlabel() and regionprops(), like in my BlobsDemo ( http://www.mathworks.com/matlabcentral/fileexchange/?term=authorid%3A31862 ).

[FIR]

Thanks a lot