Hologram authentication based on a secure watermarking algorithm using cellular automata

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

A secure watermarking algorithm for hologram authentication is presented in this paper. The algorithm exploits the noise-like feature of holograms to randomly embed a watermark in the domain of the discrete cosine transform with marginal degradation in transparency. The pseudo random number (PRN) generators based on a cellular automata algorithm with asymmetrical and nonlocal connections are used for the random hiding. Each client has its own unique PRN generators for enhancing the watermark security. In the proposed algorithm, watermarks are also randomly generated to eliminate the requirements of prestoring watermarks in the clients and servers. An authentication scheme is then proposed for the algorithm with random watermark generation and hiding.

Original languageEnglish
Pages (from-to)G64-G73
JournalApplied Optics
Volume53
Issue number27
DOIs
Publication statusPublished - 2014 Sep 20

Fingerprint

cellular automata
Cellular automata
Holograms
Watermarking
Authentication
random numbers
generators
discrete cosine transform
Discrete cosine transforms
Transparency
Servers
degradation
Degradation
requirements

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Engineering (miscellaneous)

Cite this

Hologram authentication based on a secure watermarking algorithm using cellular automata. / Hwang, Wen Jyi; Chan, Hao Tang; Cheng, Chau Jern.

In: Applied Optics, Vol. 53, No. 27, 20.09.2014, p. G64-G73.

Research output: Contribution to journalArticle

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