Date Added: Feb 2012
Now-a-days digital watermarking is very popular field for the researchers because it provide the better solutions for authentication and copyright protection problems of digital object. Digital watermarking is a highly evolving field, which involves the embedding of a certain kind of information under a digital object (image, video, audio) for the purpose of copyright protection. Both the image and the watermark are most frequently translated into a transform domain where the embedding takes place. The selection of both the transform domain and the particular algorithm that is used for the embedding of the watermark, depend heavily on the application.