Block-based watermarking in the DCT domain

被引：0

作者：

Choi, YH ^{[1
]}

Choi, TS ^{[1
]}

机构：

[1] Gwangju Inst Sci & Technol, Dept Mechatron, Kwangju 500712, South Korea

来源：

2004 IEEE INTERNATIONAL SYMPOSIUM ON CONSUMER ELECTRONICS, PROCEEDINGS | 2004年

关键词：

digital watermarking; DCT (Discrete cosine transform);

D O I：

暂无

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：

JPEG compression is a widely used compression standard for still images. We present a robust digital image watermarking algorithm that is compatible with a baseline JPEG compression standard. The DCT coefficients in an 80 block have a parent-child structure which is similar to that of wavelet transform. We exploit this property to embed a watermark with maximum strength and least perceptibility. The watermark detection is performed without referring to the original image. Simulation results show that the proposed algorithm is robust against various signal processing techniques and JPEG coding.

引用

页码：7 / 10

页数：4

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