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    請使用永久網址來引用或連結此文件: http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/46133

    題名: Digital Image Multiresolution Watermark Based on Human Visual System Using Error Correcting Code
    作者: 謝景棠;Hsieh, Ching-tang;Wu, Yeh-kuang
    貢獻者: 淡江大學電機工程學系
    關鍵詞: DWT;Watermark;HVS;Error-correcting Code;BCH
    日期: 2001-01
    上傳時間: 2010-03-26 21:02:21 (UTC+8)
    出版者: 淡江大學
    摘要: Digital watermarking has been proposed as a way to claim protection. In this paper, we try to use the error-correcting code skill, the multiresolution of wavelet transformation, and the human visual system to improve the traditional watermarking. Error-correcting based watermarking will have the property that corrects errors of the extracted watermark automatically. The HVS (Human Visual System) model will be presented to investigate perceptually characteristic parts of human (e.g. intensity or hue) and how to insert the watermark into the original data, where the perceptual sensitivity of human is relatively low. A multiresolution watermarking based on the wavelet transformation is selected in each frequency band of the Discrete Wavelet Transform (DWT) domain and therefore it can resist the destruction of image processing. In our experiments, the results show that the robustness of a watermark with ECC (Error Correct Coding) is much better than the traditional one without ECC.
    關聯: Tamkang journal of science and engineering 4(3), pp.201-208
    DOI: 10.6180/jase.2001.4.3.07
    顯示於類別:[電機工程學系暨研究所] 期刊論文


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