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determine whether currency or historical documents are counterfeit.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.
Posted: Wed - June 22, 2005 at 10:06 AM