Retrieval of the embedded watermark does not need the original image.
水印的提取不需要原始图像。
In this thesis, we propose two algorithms of the embedded watermark to the image.
在这篇论文中我们提出两种不可视浮水印的嵌入演算法。
The embedded watermark may be a paragraph of text, labels, serial number and so on.
被嵌入的水印可以是一段文字、标识、序列号等。
Then we design an image quality assessment metric by measuring the distortion of the embedded watermark.
然后通过评估提取出来的水印的质量状况来评估图像的质量状况。
There are two problems in embedding meaningful watermark as follows:(1) the embedded watermark must have a certain bit rate.
嵌入有意义的水印必须解决二个问题：（1）嵌入的水印具有一定的数据量；
The experimental results show that the embedded watermark is robust against the attacks such as frame drop, swap and collusion.
对于丢帧、帧重组以及共谋攻击有很强的鲁棒性。
Comparing the extracted feature watermark and embedded watermark can identify the image's authority and detect the content integrity.
水印检测时，将提取的特征水印与嵌入水印进行比较，不仅可以确定图像的版权，还可以证明内容的完整性。
It does not need to use the original image to extract embedded watermark, therefore it is not only suitable for still images but also videos.
在检测水印时无需使用原图像，从而能够有效应用于图像和视频信号的水印处理。
Method difference F and mean value F are applied to adjust the quantization gap to make the embedded watermark adapt to the Yu carrier image much better.
方差F和均值F被用来调整量化间隔以使嵌入的水印更好地适应于载体图像。
At present, only the digital watermarking algorithm can satisfy the cupboard grid data, unable to meet the child in the vector data embedded watermark needs.
目前的数字水印算法仅仅能满足橱格数据，无法满足在矢童数据中嵌入水印的需求。
Furthermore, this algorithm, adapted to the local image characteristics, can control the robustness of embedded watermark and improve visual quality of the watermarked video.
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。
The strength of the embedded watermark is image-adaptive according to the wavelets quantization noise, and combined with the error-correct code, it improved the characteristic to anti-attack.
根据小波域量化噪声自适应地确定嵌入强度，并结合纠错编码，提高了抗攻击能力。
The idea of embedded synchronic signal is proposed, which USES the synchronic signal for locating the watermark location.
同时引入了同步信号的思想，利用同步信号和水印序列号定位水印的嵌入位置。
Therefore, the embedded information, as required, should not interfere the normal use of the carrier data, and this is the hiding requirement of watermark technique.
因此，该技术要求添加到载体中的信息不破坏载体数据的正常使用，此即为水印技术的隐形性要求。
When a bit in chao sequences is equal to 0, hiding watermark information of the corresponding bit is embedded into Least Significant Bite.
如果混沌序列某一比特位为0，则将对应的加密水印信息嵌入到待嵌入图像信息的最低比特位。
This paper studies the optimum detection model of the multiplicative spread-spectrum watermark embedded by fixed strength.
对以固定强度嵌入的乘性扩频水印的最优检测模型进行了研究。
As the brightness of the embedded category exchange DCT coefficients, and so we can ensure video effects without really premise, so that the watermark is very robust.
另外因为嵌入到亮度类dct的交流系数中，所以可在保证视频后果不失真的前提下，使水印具有很强的健壮性。
In order to improve the robustness, each bit of the watermark is embedded into multiply positions which are irrelevant to each other.
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。
Digital watermark is invisible mark embedded in digital image, video or audio documents, by detecting the information of watermarking to protect copyright of multimedia data.
数字水印是一种嵌入到图像、视频或者音频数据中的不可见标志，通过对水印信息的检测可以达到保护多媒体数据版权的目的。
Then after preprocessing the binary image watermark, with different embedding strength the watermark image is embedded by the rule of odd-even adjudgement.
对二值水印图像预处理后，根据分类结果采用不同强度自适应的嵌入水印，嵌入采用奇偶判决法则。
Then after preprocessing the binary image watermark, with different embedding strength the watermark image is embedded by the rule of odd-even adjudging.
对二值水印图像预处理后，根据分类结果自适应的嵌入水印，嵌入采用奇偶判决法则。
The blind watermark is obtained by replacing the value of the embedded pixel of the original host image with the average of adjacent pixels.
通过将水印嵌入点的宿主图像的像素值更改为其近邻像素值的均值，而实现“盲水印”的提取。
Original watermark is mapped to watermark information, which can be directly embedded to the host, with spread-spectrum communication technique.
算法将原始水印利用扩频通信技术生成能够直接嵌入的水印信息；
Watermark is iteratively embedded into each local region centered at the points. HVS is used for the invisibility of the watermark.
水印重复地嵌入到每一个鲁棒的显著兴趣点的局部邻域内，并使用人眼视觉模型来调整水印信号的嵌入强度。
Papers completed the watermark embedded in it after the attacks of the anti-testing, to determine how to tamper with the regional and tampering with the type of semi-fragile watermarking method.
论文在完成水印的嵌入之后对它的抗攻击性进行检测，讲述了如何确定篡改区域和篡改类型的半易损水印的方法。
Embedded the watermark information into intermediate frequency in the DCT-based watermark algorithm by seek the feature field.
在基于DCT的数字水印算法中通过寻找特征区域将水印嵌入在能量最大的离散余弦系数中；
The watermark is compressed and the watermark is embedded in part of the pixels of the original image, then the watermark-hiding algorithm based on information substitution can be realized.
首先对于水印图像进行压缩，然后在原图像的部分象素点中嵌入水印，从而实现基于信息替代的水印隐藏算法。
Considering the requirement of watermarks robustness and imperception, we present a method which can definite the intensity of the image embedded by digital watermark by the content of image.
兼顾数字水印的稳健性和不可见性要求，提出一种根据图像内容确定嵌入数字水印图像强度的方法。
Considering the requirement of watermarks robustness and imperception, we present a method which can definite the intensity of the image embedded by digital watermark by the content of image.
兼顾数字水印的稳健性和不可见性要求，提出一种根据图像内容确定嵌入数字水印图像强度的方法。
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