Holograms keep paparazzi on their toes
2 08 2007
According to the issue of the journal, Journal of Optics A, scientists have developed a new way of detecting whether celebrity photos are the real thing.
The technique, which uses computer generated holograms, could also be used to prevent hackers from tampering with sensitive legal images including fingerprint records and medical scans used as evidence in court.
The technique makes it possible to identify where the primary image came from, which will be useful for verifying the image. According to the scientists the technique is an interesting addition to the pool of methods applicable to authenticate digital images.
Sources: www.abc.net.au/science/news/stories/s1397125.htm
