Researchers have created a new way to encrypt information in a digital image and extract it later without any distortion or loss of information. A team of scientists from Xerox and the University of Rochester said that the technique, called . . .

Researchers have created a new way to encrypt information in a digital image and extract it later without any distortion or loss of information. A team of scientists from Xerox and the University of Rochester said that the technique, called reversible data hiding, could be used in situations that require proof that an image has not been altered.

Its uses could range from sensitive military and medical diagnostic images to legal documents and photographs of crime scenes. The technique could also be used to encode information within the image itself for cataloging and retrieving from databases.

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