Search - blind watermarking

Search - blind watermarking - List

【Software Engineering】 watermarkt1 DL : 0: 基于小波零树特性的视觉感知度模型的优化方案, 给出了两种水印算法: 一种算法嵌入的是高斯序列水印, 通过相关检测实现盲检测另一种算法嵌入的是二值图像水印, 水印的提取是非盲提取。这两种算法在所有重要小波系数( 包括最低频系数) 中嵌入水印, 以达到最大化水印嵌入量的目的, 并结合感知度模型在水印的透明性和鲁棒性之间实现了较好的平衡, 对于常见的图像处理操作, 特别是对于JPEG 和小波压缩均有较好的鲁棒性。-based on wavelet zerotree visual perception characteristics of the model optimization program, and presents two watermarking algorithm : An algorithm is embedded watermark Gaussian sequence, through correlation detection achieve a blind detection algorithm embedded in the binary image watermark, the watermark extraction from non-blind. These two important algorithm in all wavelet coefficients (including most low-frequency coefficients) embedded watermark, to maximize embedding of purpose, and perceptual model with the watermark of transparency and robustness between a good balance, for common image processing, particularly for JPEG and wavelet compression has better robustness.
Update : 2008-10-13 Size : 765694 Publisher : yy
【Graph program】 blindwatermark DL : 1: 数字水印程序，包括多分辨嵌入水印、提取水印程序，盲水印嵌入、提取程序，以及滤波攻击和JPEG攻击程序，PSNR和相似度计算公式（MATLAB）-digital watermarking procedures, including multiresolution embedded watermark, watermark extraction procedure, blind watermark embedding and extraction procedures, Filtering and attack and attack JPEG procedures, PSNR and the similarity calculation formula (MATLAB)
Update : 2008-10-13 Size : 3790 Publisher : 成兴
【Software Engineering】 watermarkt1 DL : 0: 基于小波零树特性的视觉感知度模型的优化方案, 给出了两种水印算法: 一种算法嵌入的是高斯序列水印, 通过相关检测实现盲检测另一种算法嵌入的是二值图像水印, 水印的提取是非盲提取。这两种算法在所有重要小波系数( 包括最低频系数) 中嵌入水印, 以达到最大化水印嵌入量的目的, 并结合感知度模型在水印的透明性和鲁棒性之间实现了较好的平衡, 对于常见的图像处理操作, 特别是对于JPEG 和小波压缩均有较好的鲁棒性。-based on wavelet zerotree visual perception characteristics of the model optimization program, and presents two watermarking algorithm : An algorithm is embedded watermark Gaussian sequence, through correlation detection achieve a blind detection algorithm embedded in the binary image watermark, the watermark extraction from non-blind. These two important algorithm in all wavelet coefficients (including most low-frequency coefficients) embedded watermark, to maximize embedding of purpose, and perceptual model with the watermark of transparency and robustness between a good balance, for common image processing, particularly for JPEG and wavelet compression has better robustness.
Update : 2024-04-29 Size : 764928 Publisher : yy
【Special Effects】 work DL : 0: 这是在Matlab中编的图像数字水印的嵌入和提取程序,所用变换为小波变换,并实行盲检测,对搞这方面的研究人员非常有用.-This is made in Matlab in image watermarking embedding and extraction procedures used transform for wavelet transform, and a blind detection, for engaging in research in this area very useful.
Update : 2024-04-29 Size : 1024 Publisher : Dolphin
【Streaming Mpeg4】 1 DL : 0: 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．
Update : 2024-04-29 Size : 384000 Publisher : 阿国
【Other】 SHUZIPIPEI DL : 0: 提出了基于Contourlet变换的数字图像水印算法。与小波变换不同的是，Contourlet变换采用类似于线段（contour segment）的基得到一种多分辨、局部化、方向性的图像表示。水印信号通过基于内容的乘性方案加载到 Contourlet 变换系数。在采用零均值广义高斯分布拟合 Contourlet 变换系数的基础上，提出采用极大似然估计实现水印的盲检测。依据 Neyman-Pearson 准则，在给定虚警率的情况下对判决准则进行了优化。实验结果表明在保证水印隐蔽性的前提下，水印对常见的信号处理手段以及几何变换具有很好的稳健性-Contourlet transform is proposed based on digital image watermarking algorithm. The difference is that with the wavelet transform, Contourlet transformation similar to that of line (contour segment) of the base by a multi-resolution, localization, directional image representation. Watermark-based content of the program is loaded into Contourlet by transform coefficients. The introduction of zero-mean generalized Gaussian distribution fitting Contourlet transform coefficient based on maximum likelihood estimation proposed by the blind watermark detection. Based on Neyman-Pearson criterion, the false alarm rate in a given case to the sentencing guidelines were optimized. The results show that the watermark hidden in the guarantee under the premise of the watermark signal processing means of the common geometric transformations and is robust
Update : 2024-04-29 Size : 134144 Publisher : betty
【Special Effects】 xiaobobianhuan-shuyin DL : 0: 基于小波包分解的自适应数字水印嵌入算法.pdf 小波包变换及其在数字水印算法中的应用.pdf 一种基于小波包变换的盲数字水印算法.pdf 一种基于小波包分解的自适应数字水印算法.pdf-Adaptive wavelet packet based digital watermarking algorithm. Pdf Wavelet packet transform and its application in digital watermarking applications. Pdf Wavelet packet transform based Blind Digital Watermarking Algorithm. Pdf Wavelet packet decomposition based adaptive digital watermarking algorithm. Pdf
Update : 2024-04-29 Size : 1096704 Publisher : 付锦斌
【Special Effects】 paper DL : 0: CT based watermarking blind method
Update : 2024-04-29 Size : 249856 Publisher : leelasaladi
【Crack Hack】 watermark DL : 0: 基于DCT和JPEG的脆弱性盲数字水印算法-Based on DCT and JPEG vulnerability of blind digital watermarking algorithm
Update : 2024-04-29 Size : 168960 Publisher : lk
【Audio program】 audio-watermark DL : 0: 音频数字水印的实现，包含源代码，基于量化dct和自适应dwt两种算法，可实现水印的盲取-Audio digital watermarking, and includes source code, based on quantified dct and adaptive dwt two algorithms can achieve the blind watermark to take
Update : 2024-04-29 Size : 1270784 Publisher : 洪冰清
【Software Engineering】 A41881 DL : 0: Adaptive Blind Video Watermarking Algorithm based on DCT
Update : 2024-04-29 Size : 1105920 Publisher : leelasaladi
【Industry research】 aa DL : 0: Adaptive Blind Video Watermarking Algorithm using DCT transform
Update : 2024-04-29 Size : 1105920 Publisher : leelasaladi
【Special Effects】 Contourlet.caj(1) DL : 0: 关于多分辨率小波的数字水印算法的一篇博士论文，是盲提取哦，-The blind extraction on multi-resolution wavelet digital watermarking algorithm doctoral dissertation, Oh,
Update : 2024-04-29 Size : 3200000 Publisher : yuxiang
【Other】 jiyu DL : 0: 基于菲涅耳全息图和离散余弦变换的_盲数字水印_技术-Blind digital watermarking _ technology based on the Fresnel hologram and the discrete cosine transform _
Update : 2024-04-29 Size : 346112 Publisher : Lee
【Special Effects】 zifu-watermarking DL : 0: 在Matlab开发环境下，实现将输入的随机字符串以随机序列的方式嵌入载体图像中，并很好的保证了水印的不可见性，同时也实现了水印的盲检测并成功提取出输入的字符。-In Matlab development environment, to achieve the random string input by random sequence was embedded in the carrier image, and it guarantees the invisibility of the watermark, but also achieve blind watermark detection and successfully extract input characters.
Update : 2024-04-29 Size : 92160 Publisher : 石海凤
【Driver Develop】 zigzag_dezigzag DL : 0: 盲水印　　随着现代信息技术的高速发展，人们对信息技术的要求越来越高。对我们所需要的信息的安全性、保密性、版权所有性更加的关注。基于此，数字水印技术就应用而生。数字水印技术就是把一些隐藏的信息嵌[你仔细观察你的标题和下述内容的排版，内容缩进太多，不美观（数字均在文字之外），全文自查改正这类问题。]入到数字信息的载体中，数字水印技术把这些信息从一种形式转换为另一种形式，就类似于把信号从时域转换为频域后再去处理问题[1]。数字水印可分为盲水印和非盲水印，非盲水印系统在检测或提取水印信息时，需要原始图像而且还会影响到人们的视觉感应；盲水印系统在检测或提取水印过程中，既不需要原始载体图像，也不需要嵌入的水印，因此盲水印系统有着更加广泛的应用。盲水印技术不会改变信息，能保障信息可以被人们所认识，并且不会影响信息原来所有的价值，也不会被人轻而易举的探知和修改。通过这些嵌入到数字信息的载体中信息，能够实现信息版权的保护和判断信息是否被人所篡改的目的。-Blind Watermarking
Update : 2024-04-29 Size : 3072 Publisher : jingjing
【Education soft system】 SVD-watermarking DL : 0: blind image watermarking...........image hidding in image using SVD
Update : 2024-04-29 Size : 835584 Publisher : selva
【Audio program】 watermarking DL : 0: watermark，很全很基础的数字音频水印处理，盲检测和非盲检测，经过滤波器处理后的检测-Watermark, digital audio watermarking are all very basic, blind detection and non blind detection, the detection filter after treatment
Update : 2024-04-29 Size : 2558976 Publisher : 张康
【Speech/Voice recognition/combine】 Audio-Watermarking-master DL : 0: 鲁棒数字音频盲水印水印置乱算法实现基于阿诺德变换的离散小波变换，离散余弦变换(Robust Blind Digital Audio Watermarking Implementation Based on Watermark Scrambling Algorithm-Arnold Transform Discrete Wavelet Transform,Discrete Cosine Transform,Erro Correcting Code)
Update : 2024-04-29 Size : 24991744 Publisher : xxxkke
【Special Effects】基于 QR 码的自适应抗打印扫描水印算法 DL : 0: 提出一种基于 QR 码的自适应抗打印扫描盲水印算法。方法首先对载体 QR 码进行三级小波变换，并对低频部分进行 4×4 分块 Schur 分解，然后利用子块酉矩阵的系数差值的稳定性，将二值水印信息自适应嵌入到载体 QR 码中，最后对含水印 QR 码打印扫描并提取出水印信息。同时，算法实现了盲提取。结果算法能较好抵抗打印扫描攻击，并对高斯噪声、椒盐噪声、斑纹噪声、泊松噪声、 JPEG 压缩等攻击具有较强的鲁棒性。结论算法具有较强的抗打印扫描性能，可以广泛应用于数字产品的版权保护。(An adaptive watermark blind watermarking algorithm based on QR codes is proposed. Methods first of all, the carrier QR code is three levels smaller. Wave transformation and 4 *4 block Schur decomposition of the low frequency part are carried out. Then the binary values are obtained by using the stability of the coefficient difference of the subblock unitary matrix. The watermark information is embedded into the carrier QR code adaptively. Finally, the watermark information is extracted by scanning the watermark QR code. At the same time, the algorithm achieves blind extraction. Results The algorithm can resist the attack of print and scan, and can resist Gaussian noise, salt and pepper noise, speckle noise, Poisson noise. JPEG attacks such as compression have strong robustness. Conclusion the algorithm has strong resistance to print scanning and can be widely used in digital products. Copyright protection.)
Update : 2024-04-29 Size : 4277248 Publisher : macowin

« 1 2 3 45 »