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Optical Engineering

Copyright protection scheme based on chaos and secret sharing techniques
Author(s): Der-Chyuan Lou; Jieh-Ming Shieh; Hao-Kuan Tso
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Paper Abstract

A copyright protection scheme based on chaos and secret sharing techniques is proposed. Instead of modifying the original image to embed a watermark in it, the proposed scheme extracts a feature from the image first. Then, the extracted feature and the watermark are scrambled by a chaos technique. Finally, the secret sharing technique is used to construct a shadow image. The watermark can be retrieved by performing an XOR operation between the shadow images. The proposed scheme has the following advantages. Firstly, the watermark retrieval does not need the original image. Secondly, the scheme does not need to modify the original image for embedding the watermark. Thirdly, compared with several schemes, the scheme is secure and robust in resisting various attacks.

Paper Details

Date Published: 1 November 2005
PDF: 8 pages
Opt. Eng. 44(11) 117004 doi: 10.1117/1.2130331
Published in: Optical Engineering Volume 44, Issue 11
Show Author Affiliations
Der-Chyuan Lou, Chung Cheng Institute of Technology (Taiwan)
Jieh-Ming Shieh, Chung Hwa College of Medical Technology (Taiwan)
Hao-Kuan Tso, Chung Cheng Institute of Technology (Taiwan)

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