Description: 快速ICA算法，用于盲信号处理，提取信号的独立分量，用于图象识别等-fast algorithm for blind signal processing, signal extraction of independent component for image recognition, etc. Platform: |
Size: 2399 |
Author:yuhuihai |
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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: 765694 |
Author:yy |
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Description: 数字图像水印的嵌入和提取算法-Blind-detection digital watermarking embedding and extraction algorithm. The program is made by C language. (watermark.rar file include test image file) Platform: |
Size: 6144 |
Author:吕箫锚 |
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Description: 一种bss盲源信号分离的工具包 可以用于盲信号的提取-a blind source separation of the tool kit can be used for Blind Signal Extraction Platform: |
Size: 275456 |
Author:yanzheng |
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Description: 关于盲水印算法，盲水印算法不需要用到原图像的提取-On blind watermarking algorithm, blind watermarking algorithm used in the original image does not require extraction Platform: |
Size: 1024 |
Author:周天才 |
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Description: 介绍了一种一般的盲水印方安，它利用周期函数的性质来消除宿主数据对提取水印的影响。经过实验证明是有效地，通用的盲水印方案-This paper presents a blind watermarking Speaking generally, it is the nature of the use of periodic function to eliminate the host data on the impact of watermark extraction. After the experiment proved to be effective, common-blind watermarking scheme Platform: |
Size: 208896 |
Author:lulu |
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Description: DCT数字水印算法的提取程序，具体是哪种算法，请自己参看程序，通过编译。非盲提取！-DCT Digital Watermarking Algorithm Extraction procedures, the specific kind of algorithm, please refer to its own procedures, through the compiler. Extraction of non-blind! Platform: |
Size: 1024 |
Author:zhutong |
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Description: Blind extraction of a cyclostationary signal using reduced-rank cyclic regression—A unifying approach-Blind extraction of a cyclostationary signal using reduced-rank cyclic regression-A unifying approach Platform: |
Size: 1362944 |
Author:xiaozhang |
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Description: 小波域的盲源分离，可以有效地去除噪声，尤其是在胎儿心电提取方面-Wavelet domain blind source separation can effectively remove the noise, especially in regard to extraction of fetal ECG Platform: |
Size: 560128 |
Author:ma ming |
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Description: 本文件是关于独立成分分析的文章，对与盲水印检测和提取有帮助，值得一看。-This document is an article on the Independent Component Analysis for blind watermark detection and extraction with the help, worth a visit. Platform: |
Size: 2409472 |
Author:songziqi |
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Description: 声纹识别的特征参数提取,盲信号用于语音识别maltab程序代码,里面有相关语音文件，很不错
-Voiceprint identification of the feature extraction and blind signal for speech recognition maltab code, which has the relevant sound files, very good Platform: |
Size: 204800 |
Author:吴斌 |
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Description: Abstract—Based on the observation that low-frequency DCT
coefficients of an image are less affected by geometric processing,
we propose a new blind MPEG-2 video watermarking algorithm
robust to camcorder recording. Both the embedding and
extraction of the watermarks are done in the compressed domain.
The mean of the low-frequency DCT coefficients of the video is
temporally modulated according to the information bits. To
reduce complexity, we embed watermark in the prediction error
signals of the B-frames. Experimental results show that the
proposed scheme achieves high video quality and robustness to
camcorder recording, trans-coding, frame-rate conversion, and
geometric attacks on common test videos. Platform: |
Size: 136192 |
Author:lie |
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Description: 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 。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。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。-With the rapid development of modern information technology, the information technology of the increasingly high demand. Security, privacy, copyright on the information we need attention all the more. Based on this, the digital watermarking technology is applied. Digital watermarking technique is to some hidden information block. The carrier into the digital information, the digital watermarking technology the information is converted from one form to another, similar to the signal from the time domain into the frequency domain and then to deal with the problem. Digital watermarking can be divided into blind watermarking and non-blind watermark, non-blind watermarking system in testing or when extracting the watermark information, need the original image but also affect the visual perception of people blind watermarking system in detecting or watermark extraction process, does not need the original carrier image, also do not need to embed the watermark, the watermark the system has a Platform: |
Size: 63488 |
Author:jingjing |
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Description: 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.) Platform: |
Size: 4277248 |
Author:macowin |
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Search - blind extraction