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It will work using a face detection library opencv. The position of the creature will be mapped to the position of the larger face detected. Face detection also will determine if there are multiple faces in view, triggering the levels of happiness for the creature. This can be done using processing, but also through flash (there is an opencv port to it). From my experience, flash is a bit harder to program but easier to animate with.
== Documentation ==
=== Source Code ===
=== Imagery ===
I switched out three states depending on the distance from the camera the user sat at.
[[Image:ghost1.png]][[Image:ghost2.png]][[Image:ghost3.png]]