Build IMAGEJ plugin for highlighting objects -- 2

I need simple IMAGEJ plugin that will find "coin" and "battery" object from picture and splits them into three groups based on shape and size. Small Circular, Big Circular and Noncircular objects. (Object is considered large if it has area bigger than circle of radius 40px).

As a result the plugin shall open new window with RGB picture, which containt picture information from input but inner edges of the objects are highlighted.

I add example files which describes it better that I can.