Reversible watermarking for digital images
Tuesday, July 6, 2010 - 10:28
in Astronomy & Space
Every picture tells a story, but how do you know that a digital photo has not been manipulated to change the tale being told? A new approach to adding an encrypted watermark to digital images allows the an image to be validated against a pass key, according to research published in the International Journal of Signal and Imaging Systems Engineering.