A High Capacity Digital Watermarking Technique for the Authentication of Colour Images

被引：3

作者：

Al-Gindy, A. ^{[1
]}

Al-Ahmad, H. ^{[2
]}

Qahwaji, R. ^{[1
]}

Tawfik, A. ^{[3
]}

机构：

[1] Univ Bradford, Sch Comp Informat & Media, Bradford BD7 1DP, W Yorkshire, England

[2] Khalifa Univ Sci Technol & Res, Dept Elect Engn, Abu Dhabi, U Arab Emirates

[3] Ajman Univ Sci & Technol, Fac Engn, Ajman, U Arab Emirates

来源：

2009 IEEE INTERNATIONAL SYMPOSIUM ON SIGNAL PROCESSING AND INFORMATION TECHNOLOGY (ISSPIT 2009) | 2009年

关键词：

watermarking; blind; DCT; High capacity;

D O I：

10.1109/ISSPIT.2009.5407475

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：

This paper deals with colour image authentication technique using a high capacity watermarking algorithm. The watermark is embedded into the green channel of the host image by modifying the very low frequency coefficients of the DCT transformation. The new algorithm can embed watermarking information in up to 25% of the host image size. The new technique can resist classical attacks such as JPEG compression, low pass filtering, median filtering, cropping, and scaling attacks. Moreover, the recovery method is blind since it does not need the original host image for extraction.

引用

页码：37 / +

页数：2

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