Computer scientists from Bath and Boston have developed electronic artwork that changes to match the mood of the person who is looking at it. Your expression is picked up by a webcam, then software analyses your features and changes the artwork accordingly.
In a press release, Dr John Collomosse from the Department of Computer Science at the University of Bath, says: "The program analyses the image for eight facial expressions, such as the position and shape of the mouth, the openness of the eyes, and the angle of the brows, to work out the emotional state of the viewer,"
There's more information on the empathic painting project, including a video, at: http://www.cs.bath.ac.uk/~vision/empaint/
