A new chaos-based spread spectrum watermarking algorithm is developed in the wavelet domain for still images.

提出了一种新的混沌序列扩频水印算法。

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This paper proposes a robust watermarking algorithm for volume data based on three-dimension discrete cosine transform(3D-DCT) and spread-spectrum communication technique.

本文基于三维离散余弦变换（3D-DCT）技术和扩频通信技术提出三维体数据鲁棒水印嵌入算法。

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