Digital Image Authentication: A Review

  • Authors:
  • Chia-Hung Wei;Yue Li

  • Affiliations:
  • Ching Yun University, Taiwan;Nankai University, Tianjin, China

  • Venue:
  • International Journal of Digital Library Systems
  • Year:
  • 2011

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Abstract

Digital image authentication refers to all the techniques performing anti-falsification, digital image copyright protection, or access control. A large number of DIA techniques have been developed to authenticate digital images, including cryptography-based digital image authentication CBDIA techniques and data-hiding-based digital image authentication DHBDIA techniques. This paper not only provides some practical applications on image authentication, but also describes general frameworks of image watermarking and the general techniques, including robust watermarking, fragile watermarking, and semi-fragile watermarking. This paper also addresses the potential issues on future research directions, including managing the PRNU database, development of advanced PRNU-based blind authentication techniques, and search for digital fingerprints.