Description: 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. Platform: |
Size: 765694 |
Author:yy |
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Description: 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. Platform: |
Size: 764928 |
Author:yy |
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Description: 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. Platform: |
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Author:Dolphin |
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Description: 本章中提出了一种新的基于小波包的图像水印技术-In this paper, a novel blind digital watermarking
algorithm using wavelet-packet decomposition is
proposed. Platform: |
Size: 35840 |
Author:丫丫 |
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Description: 一种基于小波域灰度图像盲水印的新方法，
方案中利用了人类视觉系统（HVS）特征。-A new approach for non-blind watermarking of still
gray level images in the wavelet domain.The method uses
the Human Visual System(HVS)characteristic Platform: |
Size: 246784 |
Author:丫丫 |
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Description: 对音频信号分帧加窗,对每帧进行三阶小波变换,取其逼近系数平均值(一般为零).在此嵌入二值图像 并有对潜入水印信号进行盲检,恢复其嵌入水印-Sub-frame of the audio signal increases the Hamming window for each frame impletment third-order wavelet transform, whichever is close to the average coefficient (usually zero). according to this embedding binary image and resume its embedded watermark from the watermark signal by the Blind detection Platform: |
Size: 2048 |
Author:wangyapeng |
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Description: 摘 要: 提出了一种基于医学图像中感兴趣区域(ROI)的盲检测水印算法, 将包含重要病理信息的灰度图像作为数字水印, 经置乱后在混沌序列的控制下嵌入到宿主小波域非感兴趣区域中。实验结果表明, 该算法在保护医学 ROI 的同时提高了水印抗 JPEG 压缩的鲁棒性, 并对篡改、 几何剪切、 滤波等均具有良好的鲁棒性和透明性, 而且混沌序列增强了系统的安全性。-Abstract: This paper presents a region of interest based on medical images (ROI) of the blind detection watermarking algorithm will contain important pathological information of gray image as digital watermark, after scrambling after the chaotic sequence embedded into the host under the control of wavelet-domain Non-interest area. The experimental results show that the algorithm in the protection of medical ROI while increasing watermark robustness against JPEG compression, and tampering, cropping, filtering Dengjun has good robustness and transparency, but also enhanced the system chaotic sequence security. Platform: |
Size: 418816 |
Author:还都 |
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Description: 提出了一个新的基于量化抖动和模式分组编码的盲数字图像水印算法,该算法首先在DWT(离散小波变换)的第
二层中频子带中随机选取相应位置的绝对值最大的系数作为水印的嵌入区间,对小波系数进行量化并根据分组编码原
理生成预嵌入模式,然后将一个二值水印图像嵌入到模式当中。-Proposed a new model based on quantitative jitter and packet-coded blind digital image watermarking algorithm, the algorithm first DWT (Discrete Wavelet Transform) and second layer of randomly selected sub-band IF the corresponding absolute value of the location of the largest coefficient watermark embedded interval, the wavelet coefficients to quantify and in accordance with principles of generating the pre-embedded block coding mode, and then a binary watermark image embedded in them patterns. Platform: |
Size: 402432 |
Author:刘非 |
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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: 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 Platform: |
Size: 134144 |
Author:betty |
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Description: 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
Platform: |
Size: 1096704 |
Author:付锦斌 |
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Description: 基于混沌序列和浮点小波变换的盲水印很好的研究生论文-Graduate thesis based on the blind watermarking good chaotic sequence and the floating-point wavelet transform Platform: |
Size: 343040 |
Author:223 |
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Description: blind image data using RDWT SVD algorithm.watermarking using a wavelet algorithm and a compression (SVD) algorithm-blind image data using RDWT SVD algorithm.watermarking using a wavelet algorithm and a compression (SVD) algorithm.... Platform: |
Size: 1063936 |
Author:selva |
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Description: 有小波分析的盲信号处理，实现了图像的加水印，去噪，加噪声等功能，光纤无线通信系统中传输性能的研究。- There Wavelet Analysis Blind Signal Processing, Realize image watermarking, de-noising, plus noise and other functions, Fiber Transmission wireless communication system performance. Platform: |
Size: 5120 |
Author:fempc |
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Description: 基于小波变换的数字水印算法matlab代码，有均匀线阵的CRB曲线，有小波分析的盲信号处理。- Based on wavelet transform digital watermarking algorithm matlab code, There ULA CRB curve, There Wavelet Analysis Blind Signal Processing. Platform: |
Size: 6144 |
Author:hengfaopunmun |
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Description: 有小波分析的盲信号处理，包含收发两个客户端程序，基于小波变换的数字水印算法matlab代码。- There Wavelet Analysis Blind Signal Processing, Transceiver contains two client programs, Based on wavelet transform digital watermarking algorithm matlab code. Platform: |
Size: 4096 |
Author:kkmrf |
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Search - blind watermarking wavelet