...gistic 映射; 扩频水印 [gap=7414]Key words: digital image; chaotic sequences; Logistic map; spread spectrum watermarking ...
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直到九五年美国 NEC 研究中心的 Cox 等人提出了基于通信 原理的扩谱水印(Spread Spectrum Watermarking)的概念后，水印容量分析才有 了较大的进展。Cox 认为，数字水印可以看作是通信过程。
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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。
参考来源 - 一种新的混沌序列扩频水印算法·2,447,543篇论文数据，部分数据来源于NoteExpress
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。
Traditional blind additive ss (spread spectrum) watermarking systems have such features: high robustness, low detection value and small capacity.
传统盲加性扩频水印系统具有鲁棒性高、检测值低、容量小的特点。
The relation between the digital watermarking and spread-spectrum was analyzed at first, A spread-spectrum adaptive digital watermarking scheme based on the wavelet transform was proposed.
在分析了自适应小波变换和扩频特性关系的基础上，提出一种基于小波变换的扩频数字水印算法。
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