doi: 10.7763/IJCTE.2012.V4.604
Robust Digital Watermarking in CAT Two Bands
, , ,
Seok-Tae Kim1
- 1Department of Information and Communications Engineering, Pukyong National University, 599-1, Busan, Republic of Korea.
- 2Department of Applied Mathematics, Pukyong National University, 599-1, Daeyeon 3-Dong, Nam-Gu, Busan, Republic of Korea.
Abstract
In recent years, many digital watermarking techniques have been proposed to protect the copyright of digital multimedia data. This paper proposes a novel and robust algorithm of digital watermarking based on cellular automata transform (CAT). The idea of two-dimensional CAT is introduced in the algorithm. After the original image is disassembled by level-3 CAT, the watermark data is embedded into the two bands (LL3 and HH3) of the carrier image. Cellular automata have multiple gateway values, such as rule numbers, initial configuration, boundary condition. Using CAT algorithm, the robustness of the watermark as well as the imperceptibility will be strengthened. Experimental results show that the algorithm can resist some usual attacks such as compression, sharpening. This proposed method is robust to different attacks.
Keywords
- Digital watermarking
- intentional attacks
- two-dimensional CAT
How to Cite
Xiao-Wei Li, Jae-Sik Yun, Sung-Jin Cho, and Seok-Tae Kim, "Robust Digital Watermarking in CAT Two Bands," International Journal of Computer Theory and Engineering, vol. 4, no. 6, pp. 907-910, 2012. https://doi.org/10.7763/IJCTE.2012.V4.604
Copyright & License
Copyright © 2012 by the authors. This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).