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 distorsions and compression.
Hierarchical ownership and deterministic watermarking of digital images via polynomial interpolation / Boato, Giulia; De Natale, Francesco; Fontanari, Claudio; Melgani, Farid. - ELETTRONICO. - (2005), pp. 1-31.
Hierarchical ownership and deterministic watermarking of digital images via polynomial interpolation
Boato, Giulia;De Natale, Francesco;Fontanari, Claudio;Melgani, Farid
2005-01-01
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 distorsions and compression.File | Dimensione | Formato | |
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