Analysis of techniques involving data hiding and watermarking

In this modern era, storing and transmitting information is by far done as a digital object. But the greatest disadvantage in digital data transmission is the fact that innumerable copies of the digital file can be made and is susceptible to be misused. This leads to the worldwide problem of copyright protection, copy protection and content authentication. Various Steganographic techniques and algorithms have been developed to find a solution to this problem. One such technique is Digital Watermarking. This paper attempts to discuss the various digital watermarking methods and techniques.