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Genetic watermarking based on transform-domain techniques |
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| Authors: | Chin-Shiuh Shieh [Author Vitae] [Author Vitae] Feng-Hsing Wang [Author Vitae] [Author Vitae] |
| Affiliation: | a Department of Electronic Engineering, Nat'l Kaohsiung University of Applied Sciences, Kaohsiung, Taiwan, ROC b Department of Electronics Engineering, National Chiao Tung University, Hsinchu, Taiwan, ROC c School of Electrical and Information Engineering, University of South Australia, Adelaide, Australia d Department of Automatic Test and Control, Harbin Institute of Technology, Harbin, China |
| Abstract: | An innovative watermarking scheme based on genetic algorithms (GA) in the transform domain is proposed. It is robust against watermarking attacks, which are commonly employed in the literature. In addition, the watermarked image quality is also considered. In this paper, we employ GA for optimizing both the fundamentally conflicting requirements.Watermarking with GA is easy for implementation. We also examine the effectiveness of our scheme by checking the fitness function in GA, which includes both factors related to robustness and invisibility. Simulation results also show both the robustness under attacks, and the improvement in watermarked image quality with GA. |
| Keywords: | Digital watermarking Genetic algorithm (GA) Discrete cosine transform (DCT) Peak signal-to-noise ratio (PSNR) Normalized cross correlation (NC) Fitness function |
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