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 |
Hits:
Description: DCT水印设I 为载体数据,W 为水印信号, K 为密钥,那
么嵌入水印后的载体Iw 可描述为[124 ] :
Iw = F( I ,W , K) . (1)
式中, F 表示水印的嵌入策略。-I as a carrier of data, W for the watermark signal, K key, Then the watermark embedded vector can be described as Iw [124] : F = Iw (I, W, K). (1) -, F said watermark embedding strategy. Platform: |
Size: 1635 |
Author:江力 |
Hits:
Description: 设I 为载体数据,W 为水印信号, K 为密钥,那
么嵌入水印后的载体Iw 可描述为[124 ] :
Iw = F( I ,W , K) . (1)
式中, F 表示水印的嵌入策略。-established as a carrier of data, W for the watermark signal, K key, Then the watermark embedded vector can be described as Iw [124] : F = Iw (I, W, K). (1) -, F said watermark embedding strategy. Platform: |
Size: 1154 |
Author:江力 |
Hits:
Description: 设I 为载体数据,W 为水印信号, K 为密钥,那
么嵌入水印后的载体Iw 可描述为[124 ] :
Iw = F( I ,W , K) . (1)
式中, F 表示水印的嵌入策略。-established as a carrier of data, W for the watermark signal, K key, Then the watermark embedded vector can be described as Iw [124] : F = Iw (I, W, K). (1) -, F said watermark embedding strategy. Platform: |
Size: 1635 |
Author:江力 |
Hits:
Description: 设I 为载体数据,W 为水印信号, K 为密钥,那
么嵌入水印后的载体Iw 可描述为[124 ] :
Iw = F( I ,W , K) . (1)
式中, F 表示水印的嵌入策略。-established as a carrier of data, W for the watermark signal, K key, Then the watermark embedded vector can be described as Iw [124] : F = Iw (I, W, K). (1) -, F said watermark embedding strategy. Platform: |
Size: 1699 |
Author:江力 |
Hits:
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 |
Hits:
Description: PCNN实现水印嵌入，利用PCNN对载体图象进行分割，找出边界，然后进行小波变换嵌入水印。-PCNN realize watermark embedding, using PCNN segmentation of vector images to identify the border, and then wavelet transform to embed watermarks. Platform: |
Size: 1024 |
Author:赵荣昌 |
Hits:
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 |
Hits:
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 |
Hits:
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 |
Hits:
Description: 本算法结合小波变换和SVD奇异值变换，实现了水印的嵌入和提取，载体图像的鲁棒性和水印的不可见性，提取出的水印图像的和原水印图像基本一致，抗攻击性强。-The algorithm combines wavelet transform and SVD singular value transformation, achieved watermark embedding and extraction, vector image watermark robustness and invisibility, the extracted watermark image and the original watermark image are basically the same, anti-attack and strong. Platform: |
Size: 1024 |
Author:liuyuan |
Hits:
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 |
Hits:
Description: 在彩色图像做水印载体的前提下，进行水印图像的嵌入和提取-Watermarks in color images make the premise vector, image watermark embedding and extraction Platform: |
Size: 2048 |
Author:吴明 |
Hits:
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 |
Hits:
Description: 本文提出一种基于H．264低比特率视频流的半脆弱盲水印方法，通过在H．264特有的的帧内预
测和运动向量预测中分别嵌入鲁棒水印和脆弱水印，达到版权保护和内容完整性认证的双重目的．通过在嵌入强
度和预测模式选择的拉格朗日乘子中引入H．264量化因子，增强了水印对重量化编码的抵抗力，取得更好的率
失真平衡，减小水印嵌入对视频流比特率的影响．该算法可以实现水印的快速嵌入提取，满足视频实时处理的要
求，实验结果证明了该算法的有效性．-A novel semi—fragile blind watermark algorithm based on H．264 low bit—rate video stream was pro—
posed in this paper，copyright protection and content authentication Can be achieved jointly by embedding the robust waterraark
an d fragile watermark spectively during the process of interior prediction an d motion vector prediction which are
characteristic for H．264 standard．Through introducing the quan tization factor of H．264 in the embedding and prediction
mod e choice，the proposed scheme Can strengthen the watermarking resistance to video recoding and strike a good rate—
distortion balan ce for the waterm ark of lower bit—rate video st／ ea／n．which relieve bit—rates lossness from the waterm arking
embedding．Experimental results also demonstrate that this scheme iS very computational efi cient during watermark—
ing embedding an d extraction． Platform: |
Size: 384000 |
Author:阿国 |
Hits:
Description: 根据《Multipurpose Image Watermarking Algorithm Based on Multistage Vector Quantization》这篇论文进行的基于LABVIEW平台的仿真实验，其中包括了多级-残差矢量量化编码、索引约束矢量量化、鲁棒水印和脆弱水印的嵌入等技术和算法。LABVIEW版本至少为2010。-Multipurpose Image Watermarking Algorithm Based on Multistage Vector Quantization this paper LABVIEW platform-based simulation experiments, including multi-level- residual vector quantization coding, the index constrained vector quantization, robust watermark and fragile watermark embeddingtechniques and algorithms. LABVIEW version at least 2010. Platform: |
Size: 456704 |
Author:王玄 |
Hits:
Description: 关于水印的支持向量机方法，嵌入位置和强度的选择，希望对大家有所帮助。-About watermark support vector machine, the choice of embedding position and intensity, we want to help. Platform: |
Size: 563200 |
Author:王小伟 |
Hits:
Description: 【转】针对彩色载体图像，提出了一种彩色图像超复数频域的水印算法。它通过对彩色载体图像进行快速超复数傅氏变换，在超复数频域选择合适频段嵌入水印，并且修改其对称系数的值，保证了嵌入水印图像仍然可以用彩色图像的红、绿、蓝三色进行传输。分析表明提出的方法通过超复数傅氏逆变换，可以把水印带来的误差扩散到整幅图像，并且是分散到红、绿、蓝三色的各个分量上，从而实现数字水印的不易感知性和安全性的良好结合。本算法还提出了对水印数据进行“交叉冗余嵌入”的规则，以进一步提高数字水印的鲁棒性。最后给出了实验结果，验证了本算法的优越性-[Turn] for color vector image, proposed a color image watermarking algorithm hypercomplex frequency domain. It is through the color vector images hypercomplex fast Fourier transform in the frequency domain over the complex to choose the right band watermarked, and modify the value of its symmetric coefficients, to ensure that the watermarked image can still use color images of red, green and blue color transmission. Analysis shows that the method proposed by hypercomplex Fourier inverse transform, the error can be caused by diffusion of the watermark to the entire image, and is dispersed to the respective components of red, green, and blue, so that digital watermark is not easy perceptibility and a good combination of safety. The algorithm is also proposed for the watermark data " Cross redundant embedded" rule, in order to further improve the robustness of digital watermarking. Finally, the experimental results verify the superiority of the algorithm Platform: |
Size: 3072 |
Author:柠檬草の味道 |
Hits:
Search - vector watermark