how does data clustering help in image or pattern recognition

Posted by anon on Stack Overflow See other posts from Stack Overflow or by anon
Published on 2009-09-17T01:08:44Z Indexed on 2010/04/06 7:33 UTC
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image

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image-recognition

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face-recognition

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clustering

I have been playing around with different data clustering algorithms working on finding clusters between random data points represented an nodes, I keep reading that data clustering is used for image recognition. I am failing to make the connection, how does clustering data help in recognizing an image or in facial recognition. can someone explain this?

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