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    ASIA unversity > 資訊學院 > 資訊工程學系 > 期刊論文 >  Item 310904400/65131

    Please use this identifier to cite or link to this item: http://asiair.asia.edu.tw/ir/handle/310904400/65131

    Title: A High-performance Reversible Data-hiding Scheme for LZW Codes
    Authors: Zhi-HuiWang;Zhi-HuiWang;Yang, Hai-Rui;Yang, Hai-Rui;Ch, Ting-Fang;Cheng, Ting-Fang;張真誠;CHang, Chin-Chen
    Contributors: 資訊工程學系
    Date: 2013-11
    Issue Date: 2013-12-06 14:54:18 (UTC+8)
    Abstract: Hiding a message in compression codes can reduce transmission costs and simultaneously make the transmission more secure. In this paper, we propose a high-performance, data-hiding Lempel–Ziv–Welch (HPDH-LZW) scheme, which reversibly embeds data in LZW compression codes by modifying the value of the compression codes, where the value of the LZW code either remains unchanged or is changed to the original value of the LZW code plus the LZW dictionary size according to the data to be embedded. Compared to other information-hiding schemes based on LZW compression codes, the proposed scheme achieves better hiding capacity by increasing the number of symbols available to hide secrets and also achieves faster hiding and extracting speeds due to the lower computation requirements. Our experimental results with the proposed scheme have confirmed both its high embedding capacity and its high speed when hiding and extracting data.
    Appears in Collections:[資訊工程學系] 期刊論文

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