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一种基于感知模型的盲水印算法 :根据Watson模型,结合仿射变换置乱技术和DCT量化系数奇偶特性,本文提出了一种在分块DCT中频交流系数中嵌 入有含义二值水印图像,以实现盲检测的水印方案。实验结果表明,该算法对于JPEG有损压缩、图像剪切等处理有很强的 鲁棒性。-a model based on the perception of the blind watermarking algorithm : According to Watson model, with affine transformation Scrambling Technology and DCT coefficient quantization Parity characteristics, This paper presents a block in exchange DCT coefficient meaning embedded in a binary image watermarking, Blind to achieve the watermark detection program. Experimental results show that the algorithm for JPEG lossy compression, image processing shear is very robust.
Update : 2008-10-13 Size : 225358 Publisher : ghostsx

静态图像的鲁棒性数字水印算法,主要介绍一种新的鲁棒性盲水印,内附matlab程序-static image robust digital watermarking algorithm, introduced a new Robust blind watermark, containing Matlab procedures
Update : 2008-10-13 Size : 3643 Publisher : 刘伟

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抗几何攻击的盲数字水印技术耿敏,李恩平,梁华庆(中国石油大学电子信息工程系,北京102249)摘要:数字水印技术是解决数字作品版权保护的一个重要手段。衡量数字水印技术可靠性的标准是能否抵抗各种水印攻击,而几何攻击是目前困扰数字水印领域发展的突出问题,数字水印多采用盲水印算法。总结了当前抗几何攻击的各种盲水印方法,并对今后的研究方向进行了探讨。-Blind digital watermarking technology Min, Li Yun Ping, Liang Hua (China University of Petroleum Engineering Department of Electronic Information, Beijing 102249) Abstract : Digital watermarking technique is addressing the digital copyright protection an important means. Digital watermarking technology to measure the reliability standards ability to resist various watermark attack and the geometric attacks is troubled developments in the field of digital watermarking the outstanding issues, the use of digital watermarking blind watermarking algorithm. Summarizes the current attacks against the various geometric blind watermarking methods, and future research directions are discussed.
Update : 2024-04-29 Size : 243712 Publisher : ghostsx

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基于混沌置乱的DCT域灰度级盲水印算法 需要的可以看下~-Based on Chaotic Scrambling DCT-domain blind watermarking algorithm for gray-level needs can facie ~
Update : 2024-04-29 Size : 309248 Publisher :

基于混沌加密的频率域自适应数字水印技术,混沌序列一是加密,二是实现盲检测-Based on Chaotic Encryption frequency domain adaptive digital watermarking technology, one chaotic sequence encryption is to make the blind detection
Update : 2024-04-29 Size : 2048 Publisher : 宁国强

Otherggg
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blind watermarking information
Update : 2024-04-29 Size : 576512 Publisher : satish

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.
Update : 2024-04-29 Size : 418816 Publisher : 还都

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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.
Update : 2024-04-29 Size : 449536 Publisher : 郭事业

采用中心旋转法来进行曲波变换,带有几个demos。方便的进行curvelet变换-Center of rotation method used to carry out curvelet transform, with a few demos. Convenient for curvelet transform
Update : 2024-04-29 Size : 191488 Publisher : chenda

this code implemente a blind watermarking
Update : 2024-04-29 Size : 3072 Publisher : samira

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.
Update : 2024-04-29 Size : 136192 Publisher : lie

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基于直方图技术的数字水印算法。本文介绍了一种利用直方图形成空位来添加水印的方法。-Histogram-based digital watermarking algorithm technology. This article describes the formation of a space histogram method to add a watermark.
Update : 2024-04-29 Size : 2554880 Publisher : 常星

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本程序基于matlab开发环境,对数字水印进行8*8DCT变换,属于非盲数字水印!-Matlab-based development environment for this program, the digital watermark 8* 8DCT transform, a non-blind watermarking!
Update : 2024-04-29 Size : 1024 Publisher : 李可维

提出了一种可抗 几何攻击的二值文本图像水印算法. 该算法基于DCT,它将二值图像的DCT、图像的视觉特征向 量和加密技术有机结合起来,在提取水印时不需要原始图像,是一种实用的盲水印算法-We propose a geometric attacks against Binary Text Watermarking Algorithm. The algorithm is based on DCT, it binary image DCT, the image of the visual feature vector and encryption technology combine in the watermark without the original image is a practical blind watermarking algorithm
Update : 2024-04-29 Size : 1190912 Publisher : 切尔西

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Elsevier paper on blind watermarking, only for research use
Update : 2024-04-29 Size : 918528 Publisher : leelasaladi

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基于DCT中频系数的可定位和恢复的盲水印算法-Based on the DCT coefficient of intermediate frequency can be positioning and recovery blind watermarking algorithm is proposed
Update : 2024-04-29 Size : 8401920 Publisher : 刘婷

本程序能够在图像中加入文本水印,图像水印,并且能实现提取功能,在提取的过程中可以提前设置选择是使用盲水印还是非盲水印的提取,很方便明了的界面!-This procedure to add a text watermark, image watermark in the image and extract function in the extraction process can be set in advance to select the use of blind watermark extraction or non-blind watermarking, very easy to understand interface.
Update : 2024-04-29 Size : 5020672 Publisher : wang

基于离散余弦变换的自适应盲视频水印算法Blind video watermarking algorithm based on adaptive discrete cosine transform-Blind video watermarking algorithm based on adaptive discrete cosine transform
Update : 2024-04-29 Size : 180224 Publisher : 夏丽娟

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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
Update : 2024-04-29 Size : 343040 Publisher : 223

提出了一种基于纠错编码的DCT域数字水印算法,该算法在检测时不需要原始图像,实现了盲检。并且对水印图像进行了利用超混沌置乱处理,提高了安全性能和抗攻击能力。纠错编码的引入使水印抗攻击能力明显增强。 -DCT digital watermarking algorithm based on error correction coding, the algorithm detected without the original image, blind. And watermark image of the the hyperchaotic scrambling process, improve the safety performance and anti-attack capability. The introduction of error correction coding watermark anti-attack capability significantly enhanced.
Update : 2024-04-29 Size : 102400 Publisher : 顾丽萍
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