Sentence examples for watermark security from inspiring English sources
Other features, however, will make copying far more difficult than it was: the new bill has enhanced security devices including a watermark, security thread and special inks.Thomas Ferguson, director of the Treasury's bureau of engraving and printing, says that keeping counterfeits at bay has as much to do with strict law enforcement and public co-operation as it does with high technology.
This requirement is known as watermark security.
There are several possible ways to promote the watermark security.
For example, the cryptography can be used to prove the presence of a specific watermark in a digital object without compromising the watermark security.
The new titles will be issued in January on purple paper and feature watermarks, security threads and special colors and ink.
The method significantly improves watermarking security.
Cayre et al.[28] proposed a definition of watermarking security and emphasized that the importance of watermarking security should be the same as robustness.
To increase the watermarking security, we order the selected coefficients in a pseudorandom manner.
In the last few decades, the watermarking security issue has become one of the main challenges facing the design of watermarking techniques.
The concern is that counterfeiters might exploit the confusion during the changeover period to pass fake euros, even though the notes have multiple security features including watermarks, security threads and foil holograms.
Here, we consider that identifying the set of attacks in a specific application and defining them in the model are the first steps to defining the watermarking security.
