Hello

Forgive me but I'm not sure I understand. Perhaps I should explain more clearly.

Here is the outcome I am aiming for.

Original image:
http://imgur.com/0Agmv2U

Goal:
http://imgur.com/6T8ACL0

I want the rectangle in the goal image to be a shape I can move around and change the properties of.

Hope that explains better what I am trying to do.