Most work on watermarking has resulted in techniques for different types of data: image, audio, video, text/language, software, etc. In this paper we discuss the watermarking of abstract structured aggregates of multiple types of content, such as multi-type/media documents. These semi-structures can be usually represented as graphs and are characterized by value lying both in the structure and ...

This paper reviews a number of aspects of Digital Watermarking. Watermarking can be applied to many digital documents to protect against copyright infringements, including image, text and video formats. Image watermarking is commonly applied in the spatial and transform domains to achieve robust protection. Watermarking also has a role in legal aspects where the method can be used in a court of...

Database Watermarking methods are used for copyright protection of relational database. Many techniques have been developed for watermarking multimedia digital assets like audio, video, text, images etc. But these methods are usually not applicable with numerical database, because to insert a watermark into a data, small error is created in data, called mark. An error in relational data is usua...

Most work on watermarking has resulted in techniques for different types of data: image, audio, video, text/language, software, etc. In this paper we discuss the watermarking of abstract structured aggregates of multiple types of content, such as multi-type/media documents. These semi-structures can be usually represented as graphs and are characterized by value lying both in the structure and ...

----Digital watermarking is a technique of information adding or information hiding in order to identify the owner of the data in multimedia content. It seems that a signal or digital image can permanently embed over another digital data providing a good way to protect intellectual property from illegal replication. The cover data that is transmitted through the internet hides the watermark in ...

Digital watermarking is an approach to inserting invisible or visible marks into a digital multimedia data for further detection of correct ownership at the later stages. Most of the watermarking techniques focus on image and audio file, and several are related to audio file. The proposed work concentrates on improving the performance of spread spectrum audio watermarking technique. Audio water...