java-emotion-recognizer - Java emotion recognition engine. Given training data and an input image, JEmotionRec can guess the emotion being conveyed with reasonable accuracy.
M. Keally, G. Zhou, G. Xing, J. Wu, and A. Pyles. Proceedings of the 9th ACM Conference on Embedded Networked Sensor Systems, page 246--259. New York, NY, USA, ACM, (2011)