Picaflor

Features include:
-Select an image from your photo album or use the camera to capture a new image.
-Use the top slider to focus on a color and bottom slider to refine the color selection.
-Toggle between the original and color-popped images.
-Save the newly created image to your photo album, share to Facebook or via email.
-Upgrade to remove the Picaflor watermark from the final images.

Picaflor was rated one of the Top 30 apps in the week that it launched: http://www.guardian.co.uk/technology/appsblog/2012/nov/16/best-iphone-ipad-apps-16nov12

Demo video [1:02]:
http://www.youtube.com/watch?v=MDC8I1Kswhc