Progressive Watermarking Techniques Using Genetic Algorithms |
| |
Authors: | Hsiang-Cheh Huang Jeng-Shyang Pan Yu-Hsiu Huang Feng-Hsing Wang Kuang-Chih Huang |
| |
Affiliation: | (1) National University of Kaohsiung, 700 University Rd., Kaohsiung 811, Taiwan, R.O.C.;(2) National Kaohsiung University of Applied Sciences, 415 Chien-Kung Rd., Kaohsiung 807, Taiwan, R.O.C.;(3) Cheng-Shiu University, 840 Cheng-Ching Rd., Kaohsiung 833, Taiwan, R.O.C. |
| |
Abstract: | An innovative watermarking scheme based on progressive transmission with genetic algorithms (GAs) is proposed. We implement
the watermarking embedding and extraction systems in the transform domain, and apply the JPEG spectral selection mode for
scalable transmission of the watermarked image. By employing a GA with a proper fitness function into the watermarking system,
both the watermark imperceptibility and watermark robustness requirements are considered and optimized. The number of embedded
bits, or the watermark capacity, is much larger than that in other existing algorithms in the literature. Also, the watermark
capacity in the proposed algorithm lies within the theoretical limit. In addition, the embedded watermark can be partly extracted
at the receiver side even when the watermarked image is being transmitted. Simulation results show both the robustness and
the effectiveness of progressive transmission under different attacking schemes and different bandwidth variations. The proposed
scheme is directly applicable to scalable coding of multimedia, such as MPEG-4 scalable video coding. |
| |
Keywords: | |
本文献已被 SpringerLink 等数据库收录! |
|