Abstract—The comparison between the hybrid watermarking using genetic algorithm and the pure hybrid DCT-SVD (Discrete Cosine Transform-Singular Value Decomposition) is presented. The watermark scheme is based on DCT-SVD]; applying DCT to the host image, map the DCT coefficient in a zigzag order, then propose the SVD on the sub-block and the singular value in each sub block that will be modified to embed the watermark image. Afterward the image quality can be improved with the GA-based evolution. Experimental results are shown the best extracted watermark quality of hybrid DCT-SVD between the hybrid using genetic algorithm and pure hybrid DCT-SVD.
Index Terms—Hybrid, genetic algorithm, DCT, SVD.
Didi Rosiyadi and Shi-Jinn Horng are with the Department of Computer Science and Information Engineering, National Taiwan University of Science and Technology (e-mail: didi.rosiyadi@gmail.com, horngsj@yahoo.com.tw).
Nana Suryana and Nurhayati Masthurah are with the Research Center for Informatics-Indonesian Institute of Sciences Jl. Cisitu, Sangkuriang, Bandung, West Java, Indonesia (e-mail: nana@suryana.or.id, masthurah@informatika.lipi.go.id, Phone. +62-22-2504711).
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Cite: Didi Rosiyadi, Shi-Jinn Horng, Nana Suryana, and Nurhayati Masthurah, "A Comparison between the Hybrid Using Genetic Algorithm and the Pure Hybrid Watermarking Scheme,"
International Journal of Computer Theory and Engineering vol. 4, no. 3, pp. 329-331, 2012.
