抽象的な

INVISIBLE WATERMARKING USING K-HARRIES AFFINE POINT DETECTION ALGORITHIM

Neterpuneet singh, Rakesh singh

The sudden expansion of intenet has hike the avalibility of digital data to the public.Hence the problem of protecting multimedia information, copyright protection has gained the intrest of researchers. oweners are worried about any illegal duplication of therir data.Digital watermarking is a technique which has been proposed as possible solution to the problem.It is a technique which is used to identify the owner,creator and distributer of given video or image by embedding copyright mark into the digital content.In this paper a k-harries point detection algorithim is used to find sharp point on the carrier image and then watermark image is divided into blocks of same size.After that each block is embed on to the points which are found using algorithim in order to increase the security.The invisible watermark technique is used in this process.