A new steganographic scheme based on vector quantisation and search-order coding

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Title:	A new steganographic scheme based on vector quantisation and search-order coding
Authors:	Lee, C.-C.;Ku, W.-H.;Huang, S.-Y.
Contributors:	Department of Computer and Communication Engineering
Keywords:	Multiple codebooks;Search-order coding;Secret data;Steganographic schemes;Stego image;Vector quantisation
Date:	2009
Issue Date:	2010-04-07 13:24:06 (UTC+0)
Publisher:	Asia University
Abstract:	In this paper, the authors propose a new steganographic scheme based on vector quantisation (VQ) and search-order coding (SOC). The capacity of the proposed scheme is higher than others based on VQ and the quality of stego-image is acceptive. In general, the capacity of the schemes based on VQ is usually 1-bit per block. In 2004, Yu et al. proposed a scheme to increase the capacity to 3-bit per pair of blocks. In the proposed scheme, the authors utilised multiple codebooks and chose the combinations of per pair of blocks, to embed the secret data. The capacity was increased to 6-bit per pair of blocks, and the quality was identical Yu et al.'s scheme. © 2009 The Institution of Engineering and Technology.
Relation:	IET Image Processing 3(4):243-248
Appears in Collections:	[光電與通訊學系] 期刊論文

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