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    ASIA unversity > 資訊學院 > 資訊工程學系 > 期刊論文 >  Item 310904400/6433


    Please use this identifier to cite or link to this item: http://asiair.asia.edu.tw/ir/handle/310904400/6433


    Title: Adaptive Data Embedding Using VQ and Clustering
    Authors: Chen, Y. H.;Chang, C. C.;Lin, C. C.
    Keywords: Data embedding;Clustering;VQ;Hiding capacity
    Date: 2007-11
    Issue Date: 2009-12-17 14:57:56 (UTC+8)
    Publisher: Asia University
    Abstract: Recently, embedding large amounts of secret data into an image with low
    distortion has become an important research issue in data hiding schemes, even though
    reversibility cannot be achieved. Because Shie et al.?s data hiding scheme adaptively
    adjusts thresholds to offer a huge hiding capacity at the cost of large and uncontrolled
    image distortion, we apply VQ and clustering techniques to achieve the same objective
    while maintaining stable and acceptable image quality of the stego-images. Experimental
    results confirm that our proposed scheme provides the same hiding capacity as done by
    Shie et al. does, and has better performance in image quality of the stego-image. Furthermore,
    on average, the PSNR of our proposed scheme is about 3 dB larger than with
    either Du and Hsu?s or Shie et al.?s scheme.
    Relation: International Journal of Innovative Computing, Information and Control 3(6):1471-1485
    Appears in Collections:[資訊工程學系] 期刊論文

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