Share Email Print
cover

Optical Engineering

Digital image copyright protection scheme based on visual cryptography and singular value decomposition
Author(s): Ming-Shi Wang; Wei-Cheng Chen
Format Member Price Non-Member Price
PDF $20.00 $25.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

A digital image copyright protection scheme based on visual cryptography (VC) and singular value decomposition (SVD) techniques is proposed. In the proposed scheme, a master share is first constructed by applying SVD to a host image. Then, the master share is used together with a secret image to construct an ownership share, according to a two-out-of-two VC scheme. The secret image for ownership identification can be revealed by stacking the master share, and the ownership share. The proposed scheme embeds the secret image without modifying the host image. In addition, the hidden secret image can be extracted without resorting to the original host image and the aid of computers. Experimental results show that the proposed scheme, compared with existing schemes, achieves stronger robustness against several common attacks.

Paper Details

Date Published: 1 June 2007
PDF: 8 pages
Opt. Eng. 46(6) 067006 doi: 10.1117/1.2746906
Published in: Optical Engineering Volume 46, Issue 6
Show Author Affiliations
Ming-Shi Wang, National Cheng Kung Univ. (Taiwan)
Wei-Cheng Chen, National Cheng Kung Univ. (Taiwan)


© SPIE. Terms of Use
Back to Top