대한전자공학회:학술대회논문집 (Proceedings of the IEEK Conference)

대한전자공학회 (The Institute of Electronics and Information Engineers)
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DCT 영역에서 대역확산에 의한 디지털 영상 워터마킹

Digital Image Watermarking using Spread Spectrum Techniques in DCT domain

  • 발행 : 2003.11.01
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초록

In this paper, we propose a digital watermarking method using the spread spectrum techniques in DCT domain. Watermark is embedded in the middle band frequencies of 8$\times$8 DCT block. Therefore, we improve image quality and robustness. Experiment results show that the proposed watermark is robust against various attack.

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