A blind watermark algorithm for medical images using ROI and contourlet

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机构：
[1] [1,Li, Wenna
[2] Gao, Liqun
[3] Kong, Xiangyong
[4] Cui, Zhaohua
来源：
Li, W. (liwenna0810224@126.com) | 1600年 / Editorial Board of Journal of Harbin Engineering卷 / 34期
关键词：
12;
D O I：
10.3969/j.issn.1006-7043.201210057
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