A simple and efficient watermark technique based on JPEG2000 Codec |
| |
Authors: | Email author" target="_blank">Tung-Shou?ChenEmail author Jeanne?Chen Jian-Guo?Chen |
| |
Affiliation: | (1) Department of Information Management, National Taichung Institute of Technology, No. 129 Sec. 3, San-min Rd., Taichung, Taiwan 404, R.O.C.;(2) Department of Computer Science Information Management, HungKuang University, No.34 Chung-chi, Shalu, Taichung, Taiwan 433, R.O.C;(3) Department of Information Management, National Taichung Institute of Technology, No.129, Sec. 3, San-min Rd., Taichung, Taiwan 404, R.O.C |
| |
Abstract: | In this paper we propose an effective watermark scheme for embedding and extracting based on the JPEG2000 Codec process. Our embedding algorithm applies the torus automorphisms (TA) technique to break up and scramble a watermark. The scrambled watermark was embedded into the quantized bitstreams of JPEG2000 before the entropy coding stage. Distortion reduction (DR) was applied to the compressed image to lessen image degradation caused by the embedding process. Our watermark scheme is simple and easy to implement. Furthermore, it is robust to attacks like blurring, edge enhancement, and other image processing manipulations.Corespondence to: J. Chen (P.O. Box 63-146, Taichung, Taiwan 406, R.O.C.) |
| |
Keywords: | JPEG2000 Watermark Torus automorphisms Distortion reduction |
本文献已被 SpringerLink 等数据库收录! |
|