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In started a new digitization project focused on masterpieces. Small firms and the digitization of cultural heritage The case of Centrica and the Uffizi Gallery.
In the last decade, watermarking has been one of the most active research topics, attracting the interest of researchers with different backgrounds, such as signal processing, communication and information theory, cryptograhy, and computational vision [4, 2]. However a great deal of this research effort has focused on digital watermarking of audio, images and video data. Specifically the Neyman-Pearson criterion is usually adopted, which consists in maximizing the missed detection probability for a given probability of falsely revealing the watermark in a nonmarked host mode [2].
We use the same approach here. In a similar way we can evaluate the probability of missing the watermark presence [2] , obtaining: In fact, people can easily and efficiently download digital content from the Internet, and the quality of such content is not reduced each time it is duplicated.
Consequently, digital piracy due to the illegal copying and distribution of content on the Internet has led to considerable economic loss for global media players and web content providers CPs [ Barni and Bartolini ]. Among the main security technologies adopted to ensure copyright protection of digital content distributed on the Internet, " digital watermarking " [Cox et al. They appear to be secure, but do not adequately solve specific problems documented in the literature, or are characterized by drawbacks that make them impractical or unsuited for current web context [Frattolillo [Frattolillo , In an effort to improve watermarking protocols, many researchers have proposed new design approaches mainly based on the elimination of the WCA, which has been considered to be a source of potential collusion actions with buyers or sellers [ Barni and Bartolini ; Wu et al.
However, such approaches have given rise to other problems mainly concerning with the participation of buyers in the watermarking protocols. The main goal in designing the proposed watermarking protocol has been to devise a " buyer-friendly " and " mediated " solution to solve all the problems reported in Section 3 and to meet the challenges summarized in Section 4.
To this end, the devised solution is based on a limited set of well-known security facilities: PKI, homomorphic encryption [Fontaine and Galand ], enciphered and signed tokens [Frattolillo ], and a blind and readable watermarking scheme [ Barni and Bartolini ]. These facilities have been exploited to design a protection scheme in which 1 the seller or CP releases content in an encrypted form, 2 the buyer can obtain the purchased and protected content by simply decrypting it, 3 buyer and seller take part in a transaction scheme only initially guaranteed by a " registration authority, " and 4 the dispute resolution protocol is guaranteed by a judge.
Discover more publications, questions and projects in Watermarking. Development of machine learning techniques for image and video forensics in adversarial setting. The goal of the present research is to: Data hiding for fighting piracy. The problem of digital content piracy is becoming more and more critical, and major content producers are risking seeing their business being drastically reduced because of the ease by which digital contents can be copied and distributed.
Description Table of Contents. Summary The rapid growth of the Internet has fueled the demand for enhanced watermarking and data hiding technologies and has stimulated research into new ways to implement watermarking systems in the real world. This book presents the fundamental principles of watermarking system design and discusses state-of-the-art technologies in information concealment and recovery. It explains the foundations of digital watermarking technologies, and offers an understanding of new approaches and applications, and lays the groundwork for future developments in the field.
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