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    ASIA unversity > 管理學院 > 國際企業學系 > 期刊論文 >  Item 310904400/79784

    Please use this identifier to cite or link to this item: http://asiair.asia.edu.tw/ir/handle/310904400/79784

    Title: Exploring LSB Substitution and Pixel-value Differencing for Block-based Adaptive Data Hiding
    Authors: 蔡淵裕;Tsai, Yuan-Yu;陳建廷;詹啟祥;Chan, Chi-Shiang
    Contributors: 資訊多媒體應用學系
    Keywords: Pixel-value Differencing;LSB Substitution;Adaptive Data Hiding;Optimal Pixel Adjustment Process;Block
    Date: 2014-09
    Issue Date: 2014-06-05 12:08:25 (UTC+8)
    Abstract: Khodaei and Faez proposed a new adaptive data hiding technique based on LSB substitution and pixel-value differencing. Their algorithm can embed a large amount of secret data while maintaining acceptable image quality. However, their proposed algorithm only has fixed embedding capacity. In addition, the derivation for three consecutive pixels in the boundary region is poorly manipulated using raster scan order, resulting in inaccurate pixel differences. Finally, an overflow problem may occur for some embedding cases. In this study, we adopt non-overlapping blocks with m-by-n pixels to address the above problems. The cover image is first partitioned into non-overlapping blocks. The LSB substitution and optimal pixel adjustment process are then employed to embed the secret message into the central pixel of each block. The residual pixels within the same block are with message embedded using a pixel-value differencing scheme. The experimental results show that our proposed algorithm can achieve an adjustable embedding capacity according to the block size.The proposed technique is feasible in adaptive data hiding.
    Relation: International Journal of Network Security
    Appears in Collections:[國際企業學系] 期刊論文

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