Wavelet-based digital image watermarking

被引：76
|
作者：
Wang, HJM [1 ]
Su, PC [1 ]
Kuo, CCJ [1 ]
机构：
[1] Univ So Calif, Dept Elect Engn Syst, Los Angeles, CA 90089 USA
来源：
OPTICS EXPRESS | 1998年 / 3卷 / 12期
关键词：
D O I：
10.1364/OE.3.000491
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
A wavelet-based watermark casting scheme and a blind watermark retrieval technique are investigated in this research. An adaptive watermark casting method is developed to first determine significant wavelet subbands and then select a couple of significant wavelet coefficients in these subbands to embed watermarks. A blind watermark retrieval technique that can detect the embedded watermark without the help from the original image is proposed. Experimental results show that the embedded watermark is robust against various signal processing and compression attacks. (C) 1998 Optical Society of America.
引用
收藏
页码：491 / 496
页数：6
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