提出一种同时嵌入鲁棒性水印和易损性水印的复合型数字水印算法。
Embedding robust watermark and fragile watermark in one image simultaneously, an algorithm of compound, adaptive digital watermarking was presented.
基于DCT变换的鲁棒性水印方法是通过调整dct系数来嵌入水印信息的。
DCT based robust watermarking technique is to adjust the DCT coefficient to watermark.
第四章根据直流和交流信号的合成和分离方法，探索了一条频率域鲁棒性水印的新思路。
A novel digital watermarking scheme based on synthesis and separation method of direct and alternating signal is proposed in chapter 4.
基于这个不变的数字特征，本文提出了种基于图像DCT域的鲁棒性水印和脆弱性水印共存的双水印算法。
Based on this, the paper proposes a double watermarking algorithm based on DCT domain that the coexistence of robust and fragile digital watermarking can be achieved.
从理论推导和实验计算分析，用协同序参量作为数字水印的鲁棒性评判指标，具有一定可行性和实用性。
With theoretic testify and experimental analysis, the method of using synergetic order parameter as quantitative index of digital watermark robustness has feasibility and practicability.
为了提高鲁棒性，每一位水印被多次嵌入在不相关的多个位置中。
In order to improve the robustness, each bit of the watermark is embedded into multiply positions which are irrelevant to each other.
该算法不仅对有损压缩，噪声攻击具有较好的鲁棒性，而且可以抵抗共谋攻击和多水印攻击。
The proposed algorithm has high robustness against noising, loss compression, and even collusion and multiple watermarking attacks.
从试验结果看，两种算法能够抵抗JPEG压缩以及高斯噪声等信号处理的攻击，且改进后的算法水印鲁棒性及保密性得到了增强。
The experimental results show that both of them can resist signal distortions such as JPEG compression, Gauss noise, and the improved algorithm has better robustness and security.
同时这种算法可以根据图像局部特征控制水印鲁棒性，改善画质。
Furthermore, this algorithm, adapted to the local image characteristics, can control the robustness of embedded watermark and improve visual quality of the watermarked video.
为保证图像数字水印的鲁棒性和安全性，结合加密技术，提出了一种使用协同神经网络的图像数字水印算法。
An digital image watermark algorithm is proposed based on the synergetic neural network, combined with encryption technique, to guarantee its robustness and security.
该技术在水印嵌入时，由混沌系统生成水印序列，并在离散小波变换的低频子带上嵌入水印，保证了水印的鲁棒性。
While embedding watermarking, the watermarking sequences are produced by the chaos system, and are embedded into the low frequent coefficient of DWT domain to guarantee the robustness of watermarking.
相信，这一工作有助于更强鲁棒性的水印算法的设计。
It is believed that the work will help the design of robust watermarks.
实验证明，该水印算法对图像处理有较强的鲁棒性。
Experiments could prove that the watermark algorithm has strong robustness for image processing.
为了平衡鲁棒性和不可感知性，新的适用于3维的人类视觉模型被重构并用于调整水印的嵌入强度。
To make the compromise between the robustness and the imperceptivity, a new 3-d HVS model is reconstructed and used to adjust the embedding strength.
为了能够区分偶然攻击与恶意篡改，半脆弱水印需要对一般的内容保护图像操作有一定的鲁棒性。
In order to differentiate incidental attacks and malicious attacks, semi-fragile watermark must be robust against content-protection image processing.
实验结果表明，两种水印算法均具有很好的不可见性，对常见的图像处理操作具有很强的鲁棒性。
The experimental results show that the watermarks generated with the proposed algorithm are invisible and robust against noise and commonly used image-processing technique.
实验结果证明，基于块奇异值分解的水印算法对常规的图像处理攻击具有很好的鲁棒性，尤其是其中的量化水印算法。
The experiment results show that watermarking algorithms based on block SVD are very robust to usual image manipulation attacks, especially the quantization watermarking algorithm.
针对如何解决水印不可见性和鲁棒性矛盾这一问题提出了一种新的水印方案。
This paper proposes a new image watermarking scheme in order to solve the contradiction between imperceptibility and robustness.
本文最后对提出的水印算法进行了抗攻击能力实验，结果表明该算法具有较好的鲁棒性、透明性和较大的水印嵌入容量。
At last, experiments on this algorithm are implemented and experimental results show that the proposed algorithm has better robustness, transparency and larger capacity.
理论分析和仿真结果表明，该非对称水印系统能够提供可靠的非对称检测，系统鲁棒性高。
The theory analysis and simulation results demonstrate that the asymmetric watermarking system can provide reliable asymmetric detections, and it has high robustness .
实验结果表明：该算法使水印对如下攻击：压缩、剪裁，加噪，有良好的鲁棒性。
The experimental results confirmed that this blind scheme is robust to a variety of attacks such as, the compression, the tailors, Gauss noise.
在水印编码的设计上，通过将载体的个性信息与水印融合，使整个系统对拷贝攻击也具有鲁棒性。
In the design of watermark encoder, through the combination of side information and watermark, our system also obtained the robustness against copy attack.
该算法具有透明性好、鲁棒性强、提取水印时不需要原始图像等优点。
The algorithm has the advantage of transparenting, robustness and no original image is needed in extraction process.
基于变换域的双重数字水印方法，通过嵌入鲁棒水印和脆弱水印实现了图像内容版权保护和完整性认证的双重目的。
Double Digital Watermarking Method based on Transform Domain has realized the double aims of the copyright protection and the integrity authentication of image content.
在音频水印技术中，满足听觉透明性和低计算复杂度要求的同时，要保证系统的高鲁棒性是音频水印技术中的难点。
To insure the system's high robustness is the difficulty of the audio watermark technology, with satisfying the hearing transparency and low computation complexity.
对于信道误差引起的含水印索引丢失，该算法具有良好的鲁棒性。
The method is robust against the channel error, thus causing loss of watermarked indices.
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。
Traditional blind additive ss (spread spectrum) watermarking systems have such features: high robustness, low detection value and small capacity.
实验结果表明，水印具有良好隐蔽性和鲁棒性。
The experiments show that the watermarking is perceptually invisible and robustable.
实验结果表明，水印具有良好隐蔽性和鲁棒性。
The experiments show that the watermarking is perceptually invisible and robustable.
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