Robust Video Watermarking Techniques and Attacks on Watermark – A Review

There has been an explosive growth in the digitaltechnique and internet usage recently. It has created a new set of challenging problems such as copyright protection, authentication and content integrity, verification of the digitized properties. Over the last few years, watermarking has proved to be the solution to these problems. Watermarking is the process of embedding some additional data along with the video signal to protect the digital media. A large portion of the watermarking literature deals with the copyright protection of the still digital images. Watermarking techniques for digital video and audio have also been proposed. In this paper, we review the proposedschemes and also the various attacks on the watermarks.