Let me introduce Stylez Application.
Stylez allows you to search and buy clothings using content-based retrieval technology on Amazon.com.
You can find similar clothing by color, pattern and camera.
you can download it from market, it's totally free.
Android Market (Google) -> Apps -> Shopping
Name: Stylez - Apparel Search
Example - search by color (top left -> right -> bottom left -> right)
Example - search by pattern (top left -> right -> bottom left -> right)