The image watermarking algorithm design and the attack way are opposite to and promotional of each other.
图像水印的算法设计和攻击技术是互相促进的对立面。
In this paper, a dual color image watermarking algorithm is proposed based on the research of color digital watermark.
本文对彩色水印技术进行了详细地研究，提出了一种双彩色数字水印方案。
It is studied that the problems in embedding multiple watermarks simultaneously, and proposed an image watermarking scheme which embedded fragile and robust watermarks at the same time.
研究了多类数字水印同时嵌入的问题，提出了一种同时嵌入两类水印的图像数字水印算法。
In the dissertation, author discusses the relations of fractal with chaos and of fractal with wavelet, and introduces briefly the application of fractal in digital image watermarking techniques.
论文讨论了分形与混沌、分形与小波之间的关系，简要介绍了分形在数字图像水印技术中的应用。
Based on the similarity of watermark system and communication transform system model, there is an image watermarking method proposed here which adopts convolutional encoding technique.
文章利用水印系统与通信传输模型的相似性，在图像数字水印算法中引入一种编码技术。
Image watermarking techniques are mainly used for image copyright protection.
图像水印技术主要是用来保护图像的版权。
A blind digital image watermarking algorithm in DCT domain is proposed.
提出了一种DCT域的数字图像盲水印算法。
Finally, the thesis is concluded by pointing out some open issues on the research of chaos based encryption and image watermarking as well as highlight some further research directions.
图像是否受到篡改，并检测出图像受到篡改的部位。最后论文分析了当前在混沌加密与图像水印研究中存在的问题，并指出了进一步的研究方向。
Multiple image watermarking is a technology of embedding and detecting multiple irrelevant watermarks in a single digital image.
多重图像水印就是在一幅图像中嵌入和检出多个不相关水印的技术。
An image watermarking algorithm based on chaotic scrambling.
基于混沌置乱的图像水印算法。
A multipurpose color image watermarking algorithm for copyright notification and protection is proposed.
本文提出一种用于版权通知和保护的多功能彩色图像水印算法。
A novel digital image watermarking algorithm based on the association memory ability of neural network is proposed in this paper.
基于神经网络自联想记忆功能，提出了一种新的数字图像水印算法。
The latest research on watermarking attack indicates that the robust evaluation used by image watermarking systems is incomplete as yet.
最新的数字水印攻击研究表明，至今为止图像水印系统所使用的鲁棒性评价是不完善的。
This paper proposes a new image watermarking scheme in order to solve the contradiction between imperceptibility and robustness.
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。
In this paper, a new robust image watermarking scheme against desynchronization attacks is proposed.
如何有效抵抗去同步攻击是数字图像水印研究领域的热点问题之一。
In digital image watermarking and image encryption, researchers often require a pseudo random sequence which is statistically orthogonal to an image.
在数字图像水印、图像加密等领域，经常需要一个与图像正交的伪随机序列。
In this paper, a multipurpose image watermarking algorithm based on chaos and DWT (Discrete Wavelet Transform) is proposed.
提出了一种基于混沌的DWT域多功能图像数字水印算法。
Invisible image watermarking is an effective method to provide protection for copyright ownership of digital media.
图像隐形水印是解决数字媒体版权保护的有效手段。
Then an adaptive image watermarking algorithm based on DCT is proposed to solve these problems.
继而设计并实现了一个较完整的基于DCT域的自适应图像隐形水印算法。
A blind digital image watermarking based on fractional correlation is presented.
设计并实现了一种基于分数阶相关的盲图像水印算法。
A text image watermarking algorithm using encryption and hashing function is presented to choose Chinese characters sequence which need to be embedded watermarking.
提出了一种利用加密算法并结合散列函数选择文本中嵌入水印的汉字序列的算法。
This paper addresses the digital image watermarking techniques based on discrete cosine transform (DCT).
本文主要研究了DCT域的数字水印算法在静止图像中的应用问题。
It presents a blind image watermarking scheme based on fractional Fourier domain by utilizing that the order of fractional Fourier transform is freewill.
利用分数傅立叶变换级次的任意性，提出了一种基于分数傅立叶域图象水印方案。
Secondly, on the basis of the frequency domain algorithm, a valid robust blind image watermarking algorithm is designed.
二是在频域算法的基础上，设计了一种高稳健性图像盲水印算法。
Finally, the influence of different attacks, the various resolution levels, the intensity of watermarking and the different wavelet functions on digital image watermarking are researched.
最后，通过采用几种攻击方法、不同的小波分解层数、水印嵌入强度、不同小波基函数的选取来检测其对水印的影响。
The results show that two kinds of image watermarking algorithms do not all have good visibility of the common image processing operations are highly robust.
结果表明两种图像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。
An invisible image watermarking algorithm for embedding meaningful watermarks is proposed.
提出了一个嵌入有意义字符串的图象隐形水印算法。
Many digital watermarks now available for images are sensitive to signal processing and geometric distortions, a robust digital image watermarking algorithm is proposed.
针对现有适用于图像的数字水印对信号处理和几何失真比较敏感的问题，论文首先提出一种稳健的数字图像水印算法。
In this paper, we propose a digital image watermarking algorithm using the noise visibility function (NVF) based on wavelet quantization.
本文提出了一种基于噪声可见函数(NVF)量化的水印算法。
In this paper, we propose a digital image watermarking algorithm using the noise visibility function (NVF) based on wavelet quantization.
本文提出了一种基于噪声可见函数(NVF)量化的水印算法。
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