mouse control by color detection methods

sir, i am a new learner in the field of image processing..... i wish to control mouse with my finger moving in front of the webcam... i succeeded in detecting a color and calculating its coordinates in a live video.. now i want to control the mouse pointer with it.... can you please guide me 4 d next step to do..

[Walter Roberson]

I am not sure why you tag this with "java class" ?