Description: 粗略来看，数字水印系统包含嵌入器和监测器两大部分。嵌入器至少具有两个输入量一个是原始信息，它通过适当变换后作为待嵌入的水印信号，另一个就是要在其中嵌入水印的载体作品。水印嵌入器的输出结果为含水印的载体作品。，通常用于传输和转录。之后这-rough, digital watermarking system contains embedded devices and monitors two parts. Embedded device with at least two input is an original information through appropriate transform it as a question after the watermark embedded signal Another is to watermark embedded in the carrier works. The watermark embedded in the output of the vector containing watermark works. , Usually for transfer and transcription. That Platform: |
Size: 527465 |
Author:五星 |
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Description: 数字水印图片信息隐藏在载体图片的最低有效位lsb，直接替换，该方法简单易操作，鲁棒性很差，经不起加噪，滤波，剪贴等攻击-digital watermarking Photo vector information hidden in the lowest effective photo-lsb direct replacement, The method is simple and easy to operate, robust poor and the inability to increase noise, filtering, clippings and other offensive Platform: |
Size: 244004 |
Author:chenxiang |
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Description: 粗略来看，数字水印系统包含嵌入器和监测器两大部分。嵌入器至少具有两个输入量一个是原始信息，它通过适当变换后作为待嵌入的水印信号，另一个就是要在其中嵌入水印的载体作品。水印嵌入器的输出结果为含水印的载体作品。，通常用于传输和转录。之后这-rough, digital watermarking system contains embedded devices and monitors two parts. Embedded device with at least two input is an original information through appropriate transform it as a question after the watermark embedded signal Another is to watermark embedded in the carrier works. The watermark embedded in the output of the vector containing watermark works. , Usually for transfer and transcription. That Platform: |
Size: 527360 |
Author:五星 |
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Description: 数字水印图片信息隐藏在载体图片的最低有效位lsb，直接替换，该方法简单易操作，鲁棒性很差，经不起加噪，滤波，剪贴等攻击-digital watermarking Photo vector information hidden in the lowest effective photo-lsb direct replacement, The method is simple and easy to operate, robust poor and the inability to increase noise, filtering, clippings and other offensive Platform: |
Size: 243712 |
Author:chenxiang |
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Description: 介绍了数字水印技术的发展，现状和对一些关键数字水印方法的介绍，包括基于格矢量量化的数字水印算法等。-Introduced digital watermarking technology, the status quo and some of the key digital watermarking methods, including lattice-based vector quantization of digital watermarking algorithm. Platform: |
Size: 1577984 |
Author:lulu |
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Description: 讲解GIS空间数据水印信息隐藏与加密技术方法的论文，对编写GIS矢量数据的数字水印程序有一定帮助-GIS Spatial Data on the watermark and encryption techniques to hide the paper, the preparation of GIS vector data of digital watermarking procedure has a certain extent, help Platform: |
Size: 225280 |
Author:pedal |
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Description: 利用数字水印技术能够对数字作品实现有效的版权保护。目前的数字水印技术大多都是针对多媒体数据。但是在地理信怠系统中除了橱格数据外, 还存在大的矢童数据。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。本丈在分析数据特汽的基础上, 在矢童数据的频城提出了一套行之有效的数字水印算法。-The use of digital watermarking technology for digital works to achieve an effective copyright protection. At present, most of the digital watermarking technology are targeted at multimedia data. However, in the geographical letter except idle system cabinet grid data, there are still a big child vector data. 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. Zhangting data in the analysis of this special steam on the basis of the data in the frequency of vector Tong City proposed a set of proven digital watermarking algorithm. Platform: |
Size: 242688 |
Author:pedal |
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Description: 根据灰度图像信息量大、可视化效果好等特点,提出一种基于灰度图像水印的空间域矢量地理空间数据水印算法,即先将灰度图像水印信息按一定法则进行处理,再将处理后的水印信息嵌入到空间域矢量地理空间数据中,最后对嵌入水印信息的矢量地理空间数据进行检测。文中还对矢量地理空间数据进行了攻击实验,分析表明,提取出的灰度图像水印具有较好的鲁棒性效果和一定的实用价值。-According to informative gray-scale images, visual effects and good characteristics of a gray-scale image watermarking based on space vector geospatial data domain watermarking algorithm, that is, first gray image watermark information according to certain rules to deal with, and then treatment after the watermark information embedded into the space domain vector geospatial data, the last of the embedded watermark information vector geospatial data for testing. The article also vector geospatial data on the attacked experiment, analysis showed that the extracted gray-scale image watermarking has good efficacy and robustness of practical value. Platform: |
Size: 430080 |
Author:pedal |
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Description: 出了一种基于近邻插值取样法的自适应奇检测彩色图像水印算法．该算法利用近邻插值取样法，根据载体图像的
大小，自适应调节二值水印图像的尺寸，经ArnoM置乱预处理后，嵌入到彩色载体图像蓝色分量的Dcr高频系数中，检测时不需要
原载体图像．实验表明，该算法具有较强的鲁棒性和良好的不可感知性，可有效低抗剪切、加噪、锐化等常见的图像攻击．-Out of a neighbor-based interpolation of the adaptive sampling method detection singular color image watermarking algorithm. Neighbor interpolation algorithm uses the sampling method, in accordance with the size of vector images, adaptive binary watermark image of size, by scrambling ArnoM after pretreatment embedded into the color vector image of blue high-frequency component coefficient Dcr detected when do not need the original vector image. The experiments show that the algorithm has strong robustness and good can not be perceived, effectively low-shear, noise, sharpening and other common image attacks. Platform: |
Size: 265216 |
Author:manyhappy |
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Description: This function calculate block motion vectors (with integer pel accuracy), using hierarchical block matching algorithm.
％An example of main function calling this function is "MEMBA", which can be entered on the command window.
％The function also use the function "EBMA" for motion estimation of every macroblock-This function calculate block motion vectors (with integer pel accuracy), using hierarchical block matching algorithm. An example of main function calling this function is MEMBA , which can be entered on the command window. The function also use the function EBMA for motion estimation of every macroblock Platform: |
Size: 2048 |
Author:冯欣 |
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Description: 本文提出了一种基于独立分量分析的音频数字水印方法。嵌入水印时,对原始音频文件进行一级小波分解,在分解
得到的逼近分量中利用随机混合方法嵌入水印后进行小波逆变换形成嵌入水印的音频文件。仿真实验结果表明这种方
法的强鲁棒性和可行性。-Abstract:Audio p roduction is one of the important digital multimedias, which transmit becomes more and more convenient. To
p revent the multimedia content from being stolen or illegally used, audio content p rotection techniques become increasingly impor2
tant so that the potential of these app lications can be reached. As the importantmethod of copyright p rotection, the digitalwater2
marking technology has been acquired widely recognition and research. This paper p resents a method of digital audio watermark2
ing based on independent component analysis. When embedding watermarking, the original audio is decomposed by single2level
discrete 12D wavelet transform, watermarking is embedded by mixing randomly to the app roximation coefficient vector obtained,
and the audio is single2level reconstructed receiving audio havingwatermarking. Emulated experiment results show that thismeth2
od is robust and feasible. Platform: |
Size: 184320 |
Author:韩永龙 |
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Description: matlab编的基于图像矢量量化的水印程序，用分割码本的办法嵌入水印！-matlab for image vector quantization-based watermarking process, with the approach of the division of code embedded watermark! Platform: |
Size: 2048 |
Author:周赟 |
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Description: 数字水印（Digital Watermarking）技术是将一些标识信息(即数字水印)直接嵌入数字载体(包括多媒体、文档、软件等)当中，但不影响原载体的使用价值，也不容易被人的知觉系统(如视觉或听觉系统)觉察或注意到-Digital Watermarking (Digital Watermarking) technology is the number of identification information (ie digital watermark) embedded in the number of direct vector (including multimedia, documents, software, etc.) which, but does not affect the value of the original carrier, it was not easy to be the perception system ( such as visual or auditory system) perceived or noted Platform: |
Size: 3072 |
Author:han |
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Description: 提出一种基于支持向量机( SVM)和遗传算法(GA)的离散余弦变换(DCT)域盲数字图像水印方法. 该方法能自适应于图像的局部特征. 依据图像块的局部特性,利用SVM对图像块分类,自适应地确定水印嵌入强度, GA用来优化水印嵌入位置. 实验结果表明该方法有较好的不可见性和较强对抗攻击的鲁棒性.-Based on support vector machine (SVM) and genetic algorithm (GA), discrete cosine transform (DCT) domain blind digital image watermarking method. The method adaptive to local image features. Based on the local characteristics of image block using the SVM the image block classification, adaptive to determine the embedding strength, GA to optimize the watermark embedding location. The experimental results show that the method has good invisibility and robustness of the strong against the attacks. Platform: |
Size: 449536 |
Author:郭事业 |
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Description: 基于扩频的数字水印技术，水印信息分布于载体作品的多个频率系数，每个频率系数上负荷的水印能量很小，平衡水印的鲁棒性和不可感知性上的矛盾。-Digital watermarking based on spread spectrum technology, the watermark is found in a number of frequency coefficient vector works, each frequency coefficient on the load of the watermark energy is small, balance the robustness and non-perception of the conflict. Platform: |
Size: 126976 |
Author:梁兰 |
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Description: 本文在DCT噪声信号模型研究的基础上,提出了一种新的音频水印嵌入位置选择策略和一个应用该策略的自适应音频水印算法. 通过定义DCT系数的噪声敏感度,建立了水印嵌入位置和嵌入水印后的音频信号的听觉感知性之间的关系,根据音频水印的不可听性的要求选择最优的嵌入位置,然后调节水印强度来满足鲁棒性的要求,从而最大程度地保持音频水
印的不可听性和鲁棒性,为解决音频水印嵌入过程中不可听性和鲁棒性之间的矛盾提供了一种策略.-Though m any w orks in the literature agree that w aterm ark should be em bedded in the middle2fre2
quency coefficients or percep tually significant components, how to determ ine the position em bedded has no universal
definition. A new em bedding strategy and an algorithm app lying the strategy are p roposed for audio w aterm arking in
DCT dom ain based on research of DCT noise m odal. B y defining a noise sensitivity vector, a m ath relationship betw een
the w aterm ark em beddable position and the audible quality of the audio file w ith w aterm ark is set up. Platform: |
Size: 873472 |
Author:郑杨 |
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Description: 将双水印的数字全息图隐藏在载体图像的离散傅里叶变换中频系数的幅度谱中，实现最佳水印的嵌入-The double digital watermark hidden in the vector image holograms discrete Fourier transform coefficients of the amplitude frequency spectrum, the best watermark embedding Platform: |
Size: 1329152 |
Author:kitty |
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Search - vector watermarking