Van Gogh and the Algorithm: How Math Can Save Art - TIME - 1 views
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John Evans on 19 Jun 14"With math equations that analyze brush strokes, new discoveries about the world's greatest art are possible. It took X-ray fluorescence spectroscopy and a painting algorithm to reveal the hidden portrait of a peasant underneath the painting of Vincent Van Gogh's "Patch of Grass." And that feat, accomplished in 2008, was just the beginning."