An image copyright protection scheme based on torus automorphism

Chin Chen Chang, Ju Yuan Hsiao, Chi Lung Chiang

Research output: Chapter in Book/Report/Conference proceedingConference contribution

22 Citations (Scopus)

Abstract

We propose an approach to protect the copyright of image data. Many watermarking techniques have been proposed to guard the copyright of image data, most of which need to embed the watermark in the cover image. Unfortunately, embedding always results in a reduction of image quality. To achieve the goal of copyright protection without reducing image quality, we incorporate the concept of digital signature into our approach. Firstly, we produce a signature in correspondence with the cover image and the watermark. We send this signature to a certification authority or a trusted third party. If anyone pirates our image, we can still retrieve the watermark image with the signature that was stored at the certification authority and prove that the image is ours. The watermark image that we use is a gray-level image.

Original languageEnglish
Title of host publicationProceedings - 1st International Symposium on Cyber Worlds, CW 2002
EditorsShietung Peng, Shuichi Yukita, Vladimir V. Savchenko
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages217-224
Number of pages8
ISBN (Electronic)0769518621, 9780769518626
DOIs
Publication statusPublished - 2002 Jan 1
Event1st International Symposium on Cyber Worlds, CW 2002 - Tokyo, Japan
Duration: 2002 Nov 62002 Nov 8

Publication series

NameProceedings - 1st International Symposium on Cyber Worlds, CW 2002

Other

Other1st International Symposium on Cyber Worlds, CW 2002
CountryJapan
CityTokyo
Period02-11-0602-11-08

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All Science Journal Classification (ASJC) codes

  • Computational Theory and Mathematics
  • Computer Graphics and Computer-Aided Design
  • Artificial Intelligence

Cite this

Chang, C. C., Hsiao, J. Y., & Chiang, C. L. (2002). An image copyright protection scheme based on torus automorphism. In S. Peng, S. Yukita, & V. V. Savchenko (Eds.), Proceedings - 1st International Symposium on Cyber Worlds, CW 2002 (pp. 217-224). [1180882] (Proceedings - 1st International Symposium on Cyber Worlds, CW 2002). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/CW.2002.1180882