Digital Watermarking is the process of irreversibly embedding information into a digital
signal. The signal may be audio, pictures or video. There are two types of Watermarking …

the extreme development of internet has made the transmission, distribution and access to
digital media very convenient. So, media producers are more frequently dealing with illegal …

The biggest threat in the data transfer is through any medium is, the chance for it being
hacked. Any information, these days are hackable. So utmost care has to be taken for any …

The Visual cryptography scheme (VCS) is a secure method that encrypts a secret image into
shares. The key idea behind the proposed approach deals with information hiding in image …

Digital watermarking is a very active research area for copyright protection of electronic
documents and media. A visual cryptographic approach is used to generate two random …

To maintain the privacy and certainty of pictures may be a spirited space of analysis, with
two totally different approaches being followed, the primary being encrypting the pictures …

A Digital Watermark is defined as invisible or inaudible data (a random pattern of bits or
noise) permanently embedded in a graphic, video, or audio file for protecting, copyright or …

Digital communication has seen exponential growth in the past decade. Consequently, the
security of digital data has become a field of extensive research since piracy and …

An improved watermark method is descried in this paper based on Hwang and Naor-Shamir
cryptographic based approach. The technique does not require that the watermark pattern to …

The ease by which digital information can be duplicated and distributed has led to the need
for effective copyright protection tools. Various techniques including watermarking have …