Software like "Adobe Photoshop" makes it easy to alter digital photographs. Even the moderately skilled person can make a fake image that looks real. Associate professor of computer science at Dartmouth College, Hany Farid, has developed several algorhithms that detect subtle changes to digital images. These techniques could help guarantee the authenticity of news photos, crime scene photos, spy satellite images and political propaganda.
Digitization made possible by the State of Minnesota Legacy Amendment’s Arts and Cultural Heritage Fund, approved by voters in 2008.
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