水印

基本解释 (translations)

watermark

与水印相关的网络例句 [注：此内容来源于网络，仅供参考]

According to the basic principles of information theory, computer graph processing and the chromatics, this thesis mainly researches on the theory and applications of the color images watermark using the characteristics of the human visual system.

本文首先根据信息论、计算机图形处理和色彩学中的基本原理，结合人眼的视觉系统特性，对彩色图像水印的理论与应用进行了研究，然后讨论了如何对水印图像进行反色和置乱预处理，尤其是对水印嵌入过程、水印提取过程和水印攻击方法等进行了深入探讨，并最终设计实现了1套完整的具有水印嵌入与提取功能的实验软件。

According to the basic principles of information theory, computer graph processing and the chromatics, this thesis mainly researches on the theory and applications of the color images watermark using the characteristics of the human visual system. And then it discusses the preprocessing method such as Image color inversing and image disordering, especially the method of watermark embedding, watermark extracting and watermark attacking etc. At last, an experimental system about watermark embedding and extracting are accomplished.

本文首先根据信息论、计算机图形处理和色彩学中的基本原理，结合人眼的视觉系统特性，对彩色图像水印的理论与应用进行了研究，然后讨论了如何对水印图像进行反色和置乱预处理，尤其是对水印嵌入过程、水印提取过程和水印攻击方法等进行了深入探讨，并最终设计实现了一套完整的具有水印嵌入与提取功能的实验软件。

The main task of this paper is a digital watermark image signal, the process is the first image signal by adding a watermark information, the next to detect digital watermark information extraction, the final image of the embedded watermark different attacks, the test of robust watermark sexual.

本次论文任务主要是对图像信号实现数字水印，过程首先是对图像信号加入水印信息，接下来对数字水印信息进行检测抽取，最后对嵌入水印的图象进行不同的攻击，测试水印的鲁棒性。

The selected image salient features are used to compute geometric transformation parameter of watermarked images. After recovering the size and aspect of watermarked images, the watermark detector is synchronized with embedded watermark. Thus the watermark detector can detect the watermark.

利用提取的图像固有特征点估计水印化图像几何变换参数，恢复经几何变换的水印化图像，同步水印检测器与图像中嵌入的水印信号，使水印检测有效检测嵌入的水印信号。

This dissertation is mainly concerning digital image watermarking problems. In Chapter 2, a detailed survey on digital image watermarking is presented. In Chapter 3, an optimal scheme is proposed to use Human Visual System model to compute masking function. It will be used to control the strength of watermark signal for optimal embedding. In Chapter 4, we propose a novel watermarking scheme based on lattice vector quantization.

本文讨论了数字图像水印及其在多媒体安全中的应用，主要围绕下列问题进行研究和创新： 1、优化的水印嵌入模型：本文对基于直接序列扩频技术的水印算法进行了改进，根据人类视觉系统感知模型，提出了优化的水印嵌入模型，在不可感知性条件的限制下，使水印的鲁棒性达到最高。

In Chapter 2, a detailed survey on digital image watermarking is presented. InChapter 3, an optimal scheme is proposed to use Human Visual System model tocompute masking function. It will be used to control the strength of watermark signalfor optimal embedding. In Chapter 4, we propose a novel watermarking scheme based on lattice vectorquantization. Some important transform coefficients of the original image are firstlymapped into the nearest neighboring lattice points by using lattice vector quantizer,then watermark signal is added to the lattice points.

本文讨论了数字图像水印及其在多媒体安全中的应用，主要围绕下列问题进行研究和创新：1、优化的水印嵌入模型：本文对基于直接序列扩频技术的水印算法进行了改进，根据人类视觉系统感知模型，提出了优化的水印嵌入模型，在不可感知性条件的限制下，使水印的鲁棒性达到最高。2、基于格矢量量化的图像水印：本文提出了基于格矢量量化的多比特盲水印算法，不需要原始图象就可以实现水印信号的检测和译码。

For preparing for the researches of text digital watermarking and advantaging other researchers" development when using the Chinese mathematical expression theory, this paper designs and realizes a development platform of Chinese mathematical expression. It has been proved by experiments that the platform"s function, execution speed and stability can satisfy the requirements of conversion and operation of enormous data.This research found out that the structure information of Chinese have plenty redundant information that can be used by the Chinese mathematical expression for the digital watermarking, the data embedded can possess better robustness. Based on this finding, this paper designs a kind of text digital watermarking method of embedding watermarking by using Chinese structure, and realizes the method by using the Chinese mathematical expression platform.Considering the watermarking embedding algorithms importance to the robustness of the text digital watermarking, this paper makes fully use of the advantage of the Chinese mathematical expression theory to design a kind of layered text method, which has being realized by using the Chinese mathematical expression platform. The layered text method can handle the text as a solid structure, and the embedding data havepreferable robustness.Finally, based on the researches of the text digital watermarking method and the text layered method, this paper integrates the method of making use of the Chinese structure embedding watermarking with the robust algorithm based on text layered, and realizes a brand-new text digital watermarking method. Proved by lots of experiments, this brand-new method has good robustness and better invisibility.

为了为研究工作做准备和方便其他使用汉字数学表达式理论体系的人进行开发，本文基于汉字数学表达式理论设计实现了一个汉字数学表达式平台，实现了Unicode汉字集中的汉字、汉字数学表达式、汉字的Unicode码之间的相互转化、依据汉字数学表达式提取汉字的结构信息、由汉字数学表达式在非中文平台上不依赖字库显示汉字的图像等功能，使用复合文档技术和流压缩技术进行数据的存储，使用对汉字数学表达式进行二叉树拆分来处理汉字数学表达式中包含的信息，使用自定义哈希函数来提高运行速度，实验证明，该平台功能、速度和稳定性完全能满足大量数据的转化和运算要求；通过研究表明汉字的结构信息中存在大量可使用汉字数学表达式理论加以利用的水印加载空间，加载在该空间的数据可以具有较好的鲁棒性，基于此，本文设计了一种利用汉字结构加载水印的文本数字水印方法，并使用汉字数学表达式平台将其实现；由于水印嵌入算法对于文本数字水印的鲁棒性至关重要，本文充分利用汉字数学表达式理论的优点，设计了一种文本分层的方法，并使用汉字数学表达式平台将其实现，使文本成为一个立体的空间，使嵌入在其中的数据具有更好的鲁棒性；最后在基于汉字数学表达式的文本数字水印嵌入方法的研究和基于汉字数学表达式的文本分层方法的研究的基础上，结合利用汉字结构嵌入水印的方法和基于文本分层的抗攻击文本水印嵌入算法实现了一种全新的文本数字水印方法，经实验证明，该方法有良好的鲁棒性和较好的隐蔽性。

Information security usually adopt coding and information hiding technology ,though digital watermark belongs to information hiding technology ,its signification and application intention are different with information hiding .The hiding information is similar to the protected color of animal ,because the sneak can not ensure whether there is hiding information when he face a great deal of information to avoid of attack .Digital watermark is enchased into multimedia product to identify copyright data .

大多数时间域水印算法提供简捷有效的水印嵌入方案，且具有较大的信息嵌入量，但对语音信号处理的健壮性较低；变换域水印算法则具有较强的抵抗信号处理和恶意攻击的能力，但嵌入和提取过程相对复杂；压缩域水印算法是直接把水印信号加在压缩音频上的方法，它可以避免压缩算法编解码的复杂过程，但稳健性不高，而且能够嵌入的水印容量不大[2][14]。

To increase the security of the watermark, a new binary image encryption algorithm based on TD-ERCS map is presented. The watermark is encrypted by a chaos sequence generated by TD-ERCS map; A novel color image watermarking algorithm is proposed based on discrete chaotic map and 2-dimensions discrete wavelet transform. The watermark is encrypted by the new binary image encryption algorithm, and the encrypted watermark is embed into four sub-bands of the most deep level of blue branch of host image by three-level wavelet transform, and the embedded positions are determined by general cat cha otic map; A novel color-image blind detection watermarking algorithm is proposed based on integer wavelet transform and subsampling. The scrambled watermark is encrypted and embed into the low sub-bands after four sub-images of the Y branch of host image is transformed by two-level wavelet transform, and the embedded positions are determined by Logistic chaotic map, this watermarking scheme can realize blind extraction.

为了提高水印图像的安全性，提出了一种基于TD-ERCS混沌映射的二值水印图像的加密算法，该算法利用TD-ERCS映射产生的混沌序列加密水印图像；将离散混沌映射和二维离散小波变换相结合，研究了彩色图像水印新算法，该算法先对混沌序列加密后的水印图像进行小波变换，再嵌入到宿主图像的蓝色分量的最深层的四个子带中，嵌入位置则由广义猫映射确定；将整数小波变换和图像子采样技术应用于数字水印，提出了一种彩色图像盲提取水印算法，水印嵌入时，先对宿主图像在YIQ色彩空间中的Y分量进行子采样，并对得到的四个子图像分别进行二级离散小波变换，然后将置乱并加密后的水印图像嵌入到小波变换后的低频子带中，其嵌入位置由Logistic混沌映射产生的混沌序列确定，实现了水印的盲提取。

This article has made the quite comprehensive introduction on the basis of the elementary theory about the digital watermark technology. From the watermark robustness, transparency, security and watermarking capacity and may be subject to attack several aspects, Watermarking performance Evaluation system has been prented.

本文在比较全面的介绍数字水印技术的基本理论的基础上，从水印的鲁棒性、透明性、安全性和水印容量及可能遭受的水印攻击等几个层面，给出了一个水印性能的的评估体系。

与水印相关的网络解释 [注：此内容来源于网络，仅供参考]

dandy roll：[机]水印辊 压胶辊 压纹辊

stratolab 高空实验室 | dandy roll [机]水印辊 压胶辊 压纹辊 | gentianose 龙胆三糖

dandy roll：水印辊,罗纹辊

dandy pick 水印掉毛 | dandy roll 水印辊,罗纹辊 | dandy worm 水印辊印痕(纸病)

dandy roll：水印辊

guide roll:校正辊,导辊 | dandy roll:水印辊 | dead knife:固定刀

Watermark Detecter：水印检查器

双面印 Two-Side Print | 水印检查器 Watermark Detecter | 水印错误 Watermark Error

Embed Watermark：嵌入水印

Digimarc[数字标识] | Embed Watermark[嵌入水印] | Read Watermark[读取水印]

filigree paper：有水印的纸张

有压印线的书写纸linear paper | 有水印的纸张filigree paper | 有声纸sonosheet

Read Watermark：读取水印

Embed Watermark[嵌入水印] | Read Watermark[读取水印] | View[视图]

Read Watermark：[读取水印]</P>view[视图]

embed watermark[嵌入水印] | read watermark[读取水印]view[视图] | proof setup[校样设置]

digital watermark：数字水印

数字 "水印"(Digital Watermark)技术是通过数字"水印"算法将一些标志性信息直接嵌入到多媒体数字信息当中,既不影响原有内容的价值和使用,又能增强电子文件使用的安全性,且只有专用的"检测器"和"阅读器"才能提取.

letter press printing：凸版水印

Shade craft water-mark 凹版水印 | Letter press printing 凸版水印 | Gravure printing 凹版印刷