Semi-fragile watermarking technique for image tamper localization

被引：1
|
作者：
Hao, Zhou [1 ]
Li, Haiyan [1 ]
Yu, Pengfei [1 ]
机构：
[1] Yunnan Univ, Informat Sch, Kunming 650091, Peoples R China
来源：
2009 INTERNATIONAL CONFERENCE ON MEASURING TECHNOLOGY AND MECHATRONICS AUTOMATION, VOL I | 2009年
关键词：
Semi-fragile; watermarking; tamper localization; DCT; JPEG-lossy; AUTHENTICATION;
D O I：
10.1109/ICMTMA.2009.110
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
In this paper an image authentication scheme is proposed to locate tampered area correctly and accurately on the watermarked image. Semi-fragile watermarks are extracted from detail coefficients of wavelet transform and embedded into DCT coefficients. In order to enhance the security, chaotic sequence is employed to encrypt the watermark signals. Experimental results show the proposed technique is robust against JPEG lossy compression and noise pollution.
引用
收藏
页码：519 / 523
页数：5
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