Digital watermarking: Algorithms and applications

被引：444
作者：
Podilchuk, CI
Delp, EJ
机构：
[1] Bell Labs, Murray Hill, NJ 07974 USA
[2] Purdue Univ, W Lafayette, IN 47907 USA
来源：
IEEE SIGNAL PROCESSING MAGAZINE | 2001年 / 18卷 / 04期
关键词：
D O I：
10.1109/79.939835
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
Digital watermarking algorithms for audio, still images, graphics and text were proposed. The applications of robust digital watermarking in copyright protection, authentication, temper detection and data hiding were discussed. The watermark signal was embedded into perceptually insignificant portion of host data to develop an imperceptible watermark. It was found that in digital watermarking each copy gets a unique watermark to identify the end users. The analysis suggested that combination of all weak narrowband signals at the demodulator helped to recover the original information signal.
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收藏
页码：33 / 46
页数：14
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