Hierarchical ownership and deterministic watermarking of digital images via polynomial interpolation

Boato, Giulia and De Natale, Francesco and Fontanari, Claudio and Melgani, Farid (2006) Hierarchical ownership and deterministic watermarking of digital images via polynomial interpolation. UNSPECIFIED. (Unpublished)

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    Abstract

    This paper presents a novel method for the secure management of digital images formulated within the mathematical theory of polynomial interpolation. As main innovative features, our approach is based on a hierarchical joint ownership of the image by a trusted layered authority and on a deterministic watermarking procedure, embedding a short meaningful or random signature into the image. Experimental results show that the inserted signature can almost always be fully recovered even in presence of a reasonable amount of image degradation due to image processing operators, such as filtering, geometric distortions and compression.

    Item Type: Departmental Technical Report
    Department or Research center: Information Engineering and Computer Science
    Subjects: T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK7885 Computer Engineering
    Report Number: DIT-06-038
    Repository staff approval on: 29 Jun 2006

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