Mona Lisa turns out "83% Happy"

A computer has been used to decipher the enigmatic smile of Leonardo da Vinci's Mona Lisa, concluding that she was mainly happy.

Leonardo da Vinci's Mona Lisa was 83 % happy, 9 % disgusted, 6% fearful and 2% angry, a test executed by a University of Amsterdam computer using "emotion recognition" software showed.

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The computer rated features such as the curvature of the lips and crinkles around the eyes.

The program, developed with researchers at the University of Illinois, draws on a database of young female faces to derive an average "neutral" expression.

The software uses this average expression as the standard for comparisons, Sofia News Agency reports.

V.Y.

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