Just re-read your original post again - I think I had it backwards - if you want a finished picture of the APPLE...? (whereas originally I thought you wanted the banana)

Simply put - you're screwed.

The information of the complete object simply isn't there, so you'll have to recreate it one way or another - painting, cloning, etc.

Sorry-
-Lew ;-)

(Again, post the pic you're working on, and we'll see what we can come up with for you as far as any help.)