I created the smile detection library with the latest JRE and Visual Studio 2010 Express. It has been tested only in Windows 7.
Download the sample application with the library here.
Happiness Factor – Smile Detection in Processing
This is a adaptation of the Auto Smiley by Theo Watson. The core part is from the Machine Perception Toolbox. The Processing part is done by using JNI. I’ll do more testings in other machines. Stay tune for the code.