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數字圖像水印技術,是將代表著作權人身份的特定信息(即數字水印),按照某種方式植 入電子出版物中,在產生版權糾紛時,通過相應的算法提取出該數字水印,從而驗證版權的 歸屬,-digital image watermarking technology, on behalf of the copyright status of specific information (ie digital watermarking), according to some form implanted electron
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一种新的图像脆弱水印算法李亚琴 ,孙星明 ,杨恒伏(1.苏州市职业大学,江苏苏州215104;2.湖南大学计算机与通信学院,湖南长沙410082)摘要:提出一种基于小波变换和QR分解的图像脆弱水即方法。嵌入水印时,首先对原始图像进行三级小波分解,然后提取第三级低频子带的边缘特征,同时对此边缘特征和第三级垂直高频子带进行QR分解,用边缘特征的一部分分解结果替换垂直高频子带分解结果的相应部位来嵌入水即,最后进行小波逆变换得到嵌入水印的图像。图像认证时,首先对观测图像进行三级小波分解,第三级垂直高频子
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Firstly, research on robust image watermarking. A digital watermarking scheme based on wavelet transform was proposed. It realizes the watermarking extract without the original image using 64×64×8 bit gray image as the watermark signal. In order to e
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matlab数字水印 通过这个程序可以给原图象加上水印 但不可以提取!-Matlab digital watermarking through this procedure can be added to the original image watermark but not extract!
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对一张BMP图像利用LSB算法添加二值水印,并可检测提取。-BMP images by LSB of a binary watermarking algorithm to add, and test extract.
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基于DCT变换的水印图像水印算法源代码(matlab实现)。将文件解压缩到MATLAB安装目录下的work文件夹中,然后打开aaa.m文件,运行即可。-Based on the DCT Transform Watermarking Image Watermarking Algorithm source code (matlab achieve). Extract the file to the MATLAB installation directory under the work folder
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基于MATLAB环境的音频水印提取源程序(非盲水印)-MATLAB-based environment for audio watermark extraction source (non-blind watermarking)
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利用HASH(采用sha-1算法)算法原理,设计数字签名的水印算法,完成嵌入、(提取)验证,-Use HASH (using sha-1 algorithm) algorithm, design of watermarking algorithms digital signature to complete the embedding, (extract) authentication,
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数字图像水印,使用小波变换进行水印的添加和提取。matlab源代码。wm_embed.m嵌入。wm_extract.m提取。-Digital image watermarking, the use of wavelet transform to add and extract the watermark. matlab source code. Embed wm_embed.m. wm_extract.m extraction.
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QIM算法的水印的嵌入和提取,鲁棒性分析-QIM watermarking algorithm to embed and extract
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本文提出了一种基于自然语言的文本水印算法,可以在提取的水印中对其进行纠错和改错。-This paper presents a text based natural language watermarking algorithm can extract the watermark in the conduct of its error correction and error correction.
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水印嵌入后的提取,在dct域音频水印中的基础应用-After the extraction of the watermark embedded in the dct domain based on application of audio watermarking
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matlab中的dct变换,在图像中利用dct变换嵌入水印,并提取-The dct matlab transformation in the image watermarking using dct transform, and extract
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在保密数据传递等应用中,有时采用将一句话或一段文字或一段音乐隐藏在另一段音乐中,然后利用专门的算法来提取所传的信息-Data transfer in applications such as security, sometimes using the word or a text or a piece of music hidden in another section of music, and then use a special algorithm to extract the infor
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提出了一种鲁棒的多水印嵌入与检测算法,该算法基于小波域,且提取水印时不需要原始图像,保护了原始图像的安
全。在该多水印算法中,提出并使用了一种将密码学和常规的数字水印制作方法- - - 叠加法和量化调制法,有机结合起
来的新的方法,在水印嵌入时,不同的水印,生成与该水印相关的不同的密钥,在进行水印的提取时,用不同的密钥和待测的
图像提取出相应的水印。通过将密钥向第三方注册,可以获得对原始图像的所有权。-A robust multi-watermark embedding and de
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基于小波变换自适应水印图像的(提取)
matlab编程实现-Adaptive watermarking based on wavelet transform image (extract) matlab programming
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音频信号的水印设计,以音频信号为载体,将秘密信号嵌入载体音频信号当中,
实现音频信号的水印。采用变换域小波变换(DWT)的技术,将音频信号进行小波变换,提取出低频分量,然后将水印嵌入到音频信号的低频当中。实验当中先在MATLAB 上面进行了仿真实验,并且通过加入噪声以及滤波等进行干扰以此检测了算法的透明性和健壮性,然后利用C 语言进行了测试,最后经
过一些修改,例如加入定时器以及进行中断的处理和加入缓冲在DSP 板子上实现了加入水印的音频声音的播放。-Audio signal water
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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 wate
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code embedding and extract watermarking color, attak noise gauss, salt and pepper, rotate,-code embedding and extract watermarking color, attak noise gauss, salt and pepper, rotate,...
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Code to implement a watermarking scheme, apply JPEG Compression and then extract the watermark. Code also includes ways to assess the resistance of the watermark to attacks.
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