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Hierarchical ownership and deterministic watermarking of digital images via polynomial interpolation

Authors
Journal
Signal Processing Image Communication
0923-5965
Publisher
Elsevier
Publication Date
Volume
21
Issue
7
Identifiers
DOI: 10.1016/j.image.2006.03.008
Keywords
  • Image Watermarking
  • Joint Ownership
  • Polynomial Interpolation
Disciplines
  • Mathematics

Abstract

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.

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