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AMSTERDAM, Netherlands, Dec 15, 2005 (UPI via COMTEX) -- A University of Amsterdam computer used emotion recognition software to determine Leonardo da Vinci's Mona Lisa was happy.
The computer rated the features of the famous portrait and concluded its subject was 83 percent happy, 9 percent disgusted, 6 percent fearful and 2 percent angry, an article in New Scientist said.
The program developed with experts at the University of Illinois rated Mona Lisa's curvature of the lips and crinkles around the eyes, among other features, the BBC said.
The portrait in the Louvre in Paris was painted between 1503-1506 and Mona Lisa's mood has been the subject of speculation for five centuries.
The experiment with the Mona Lisa could pave the way for software letting computers adjust responses based on its user's mood, the journal said.
Copyright 2005 by United Press International