Abstract
A vector quantisation (VQ) based watermarking scheme for hiding the gray watermark is presented. It expands the watermark size, and employs VQ index assignment procedure with genetic algorithm, called genetic index assignment (GIA), for watermarking. The gray watermark is coded by VQ, and obtained indices are translated into a binary bitstream with a much smaller size. We partition the codebook into two sub-codebooks, and use either one of them based on the value of the bit for embedding. Next, GIA is employed to find better imperceptibility of watermarked image. Experimental results show that the proposed method possesses advantages over other related methods in literature.
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© 2004 Springer-Verlag Berlin Heidelberg
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Wang, FH., Pan, JS., Jain, L., Huang, HC. (2004). VQ-Based Gray Watermark Hiding Scheme and Genetic Index Assignment. In: Aizawa, K., Nakamura, Y., Satoh, S. (eds) Advances in Multimedia Information Processing - PCM 2004. PCM 2004. Lecture Notes in Computer Science, vol 3332. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-540-30542-2_10
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DOI: https://doi.org/10.1007/978-3-540-30542-2_10
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-540-23977-2
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