Arduino photobooth with face recognition and coin validator

A software to sell photo ID images. The interface would be a touch-screen where the user may punch the buttons to make a decision. Then the user would input the ammount the option he opted for costs into the validator. The camera/flash fires and captures an image of the user. The image has a back background and is tethered to the computer where the images are locally stored. The software then needs to recognize the face and crop a known with-height, min|max width-hight of head is known. Finally the images can be arranged into a template for printing. The hard part is to crop the images. Here I leave an example of a cropping script that could be used. [login to view URL]