An image copyright protection scheme based on torus automorphism

Chin Chen Chang, Ju Yuan Hsiao, Chi Lung Chiang

研究成果: Conference contribution

23 引文 斯高帕斯(Scopus)

摘要

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.

原文English
主出版物標題Proceedings - 1st International Symposium on Cyber Worlds, CW 2002
編輯Shietung Peng, Shuichi Yukita, Vladimir V. Savchenko
發行者Institute of Electrical and Electronics Engineers Inc.
頁面217-224
頁數8
ISBN(電子)0769518621, 9780769518626
DOIs
出版狀態Published - 2002 一月 1
事件1st International Symposium on Cyber Worlds, CW 2002 - Tokyo, Japan
持續時間: 2002 十一月 62002 十一月 8

出版系列

名字Proceedings - 1st International Symposium on Cyber Worlds, CW 2002

Other

Other1st International Symposium on Cyber Worlds, CW 2002
國家Japan
城市Tokyo
期間02-11-0602-11-08

All Science Journal Classification (ASJC) codes

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

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