Identify colors by K mean cluster approach

I know the pixel values of the different band now I want to identify the color of that band by K mean cluster approach. please help.

Answer 1

[Image Analyst]

This is usually a lousy way to do color segmentation. Nonetheless I'm attaching my demo to do it.

I find discriminant analysis with the classify() function does a better job, though not perfect. Demo attached for that too.