Hidden Holograms Help ID Digital Image Tampering

Investigators can utilize a varity of tools to determine whether currency or historical documents are counterfeit. But figuring out whether a digital image has been tampered with can be more difficult, because the product is less tangible. Now scientists have developed a technique based on holograms that they say will help curb digital fraud.

Source: Scientific American


Posted: Wed - June 22, 2005 at 10:06 AM