Digital Watermarking : Techniques and Trends by Mohammad Ali Nematollahi, Chalee Vorakulpipat, Hamurabi

By Mohammad Ali Nematollahi, Chalee Vorakulpipat, Hamurabi Gamboa Rosales

This ebook offers the state-of-the-arts program of electronic watermarking in audio, speech, picture, video, 3D mesh graph, textual content, software program, normal language, ontology, community flow, relational database, XML, and IPs. It additionally provides new and up to date algorithms in electronic watermarking for copyright security and discusses destiny developments within the field.

Today, the unlawful manipulation of real electronic items and items represents a substantial challenge within the electronic global. delivering an efficient answer, electronic watermarking will be utilized to guard highbrow estate, in addition to fingerprinting, increase the safety and proof-of-authentication via unsecured channels.

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Lastly, discussion and comparison on different software watermarking techniques are explained. Chapter 10 of this book provides an overview on relational database, XML, and ontology watermarking techniques. Firstly, basic and fundamental of database watermarking is discussed. Secondly, different techniques for database watermarking, issues, attacks, and types of watermark data are explained. Furthermore, this chapter also extends the relational database watermarking for XML watermarking. Finally, a brief extension of relation database watermarking for ontology watermarking is discussed.

Lastly, a critical review in video watermarking techniques is discussed. Chapter 6 of this book provides an overview on 3D watermarking techniques. Firstly, modeling and representation of a 3D object is explained. Secondly, a brief exploration of 3D watermarking techniques and attacks is discussed. Lastly, this chapter evaluates different 3D watermarking techniques. The third part of this book is dedicated to document watermarking. This part is divided into four chapters which discuss natural language, software, database, and text watermarking, respectively.

For this reason, the values of amplitude and decay rates should be set below the audible threshold of HAS. As an example, when the time difference between the original signal and the echo stays below 1 ms, there is no annoying effect on the audibility of the signal. Due to the induced size of echo signal, low embedding rate, and security, there are few systems and applications that practically developed this method. To the best of our knowledge, there is no real system that uses echo hiding in audio watermarking which cannot provide sufficient data for evaluation.

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