earticle

영어

Due to improvement in imaging skill and the ease with which digital content can be imitated and operated there is a strong requirement for a digital patent device to be put in place. It requires for authentication of the content as well as the owner. Digital Watermarking is present as a potential key to this problem. Till date several watermarking techniques have been proposed. This paper proposed a comprehensive survey of the current schemes that have been developed and their effectiveness.