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一个基于离散余弦变换的水印算法的matlab程序(嵌入、提取)-one based on discrete cosine transform the watermark algorithm Matlab (embedding and extraction)
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一种利用小波变换的水印算法,实现了盲检测,可以对抗常见的几何攻击。-a wavelet transform the watermark algorithm achieved a blind testing can be used to confront common geometric attacks.
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有一个机遇DCT域的数字水印算法,里面有详细的注释说明,可以拿来研究-This is a DCT watermarking algorithm attached with detailed comments and explanation, which can be used for research purpose.
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利用LSB算法去实现了电子水印技术。代码完全实现了嵌入以及提取, 算法同时包含了4种攻击算法以及利用psnr测量提取的水印和攻击后提取的水印,This algorithm describes digital watermark technique by using LSB. This code implement embedding and extraction. At the meanwhile, this algorithm includes 4 different kinds of att
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dct based visible watermarking algorithm
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watermarking algorithm base on dct
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音频水印的matlab相关程序,包括两个部分:小波域音频水印(含修正离散余弦变换)及基于HRT和线性回归检测水印的算法。
-Matlab audio watermark-related procedures, including two parts: audio watermarking in wavelet domain (including MDCT) and linear regression based on the HRT and the watermark detection a
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】利用混沌动力学系统中logistic 映射先对水印图像进行置乱预处理以增强其鲁棒性, 在小波域中将原始音频信号按比例分段, 此比例为原始音频信号低频部分与水印信号个数之比, 然后将水印信号加入到音频信号的
低频部分。用StirMark 攻击后的实验结果表明, 该算法对StirMark 的部分攻击具有一定的鲁棒性。-The logistic- map sequences to encrypt the watermark are used. The original audio signal
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几个非常经典的实例演示,手把手教授,学习遗传算法的非常好的帮手。-Your best assistance in studing GA algorithm !by case study
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一种基于小波变换的灰度数字水印嵌入算法,使用matlab实现,含有原始论文。不过不是很理想,希望大家改进-Gray-scale based on wavelet transform digital watermark embedding algorithm, using matlab implementation, containing the original papers. But not very good, hope that we improve the
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基于小波变换的数字水印算法matlab代码,含有各种攻击的效果对比,对做毕设的同学应该有帮助。-Digital Watermarking Based on Wavelet Transform algorithm matlab code, containing a variety of attacks on the effect of contrast on the Bi-based students should do help.
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一个简单的水印嵌入算法,matlab编写-A simple watermarking algorithm, matlab write
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This a watermark soucecode based on Spacial Domain Algorithm implemented by using Delphi7.0. The main idea is to embed the binary watermark into th
- transparent digital watermarking and digital watermarking Wavelet the note. Pictures were revised
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本文算法是将24 位真彩图的亮度分量分块
DCT ,然后利用DCT 量化系数的奇偶特性嵌入8
位灰度水印图,并通过PN 序列加密来保证水印的
安全性。算法中,将灰度图像转换为二进制数据
流,置乱后扩频调制,隐藏在宿主DCT 系数量化值
中,提取时不需要宿主信号,实现水印信号的盲提
取。-This algorithm is 24-bit true color pictures of the luminance component of block DCT, quantiza
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彩色水印提取算法,含说明,希望对大家有用-Color watermark extraction algorithm, with that, we hope to be useful
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:针对MP3 编码方式和帧结构进行分析,利用帧中的比例因子提出了一种压缩域水印算法。算法通过引入帧变化分析步
骤,很好地实现了水印的自适应嵌入。对于不同的系统要求,还可以通过修改门限信噪比的值SNRlim按需进行水印嵌入,使算法
具有更大灵活性。同时在牺牲一定的嵌入空间前提下,实现了水印信息的自同步。实验表明,对于不同风格的音乐,该水印算法
具有很好的不可听性。-In this paper,the encoding method and the frame structure of
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Matlab版本代码,主要研究数字水印的DCT算法-Matlab version of the code, the main algorithm of digital watermark DCT
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基于人眼视觉模型的双正交小波变换算法,通过实验验证,该算法在对嵌入水印后的图像进行有损压缩、剪切、污染、添加各种噪声等处理后,提取出的水印仍表现出了较好的鲁棒性。-Human visual model based on biorthogonal wavelet transform algorithm, experiments show that the algorithm of the watermarked image lossy compression, shear, pollution,
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基于傅里叶变换的数字水印算法,在原始图像的傅里叶变换域中对称的嵌入数字水印信息-Fourier transform-based digital watermarking algorithm, the original image of the Fourier transform domain, the embedded digital watermark information symmetry
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一篇介绍基于DCT域水印和文本水印算法的研究的硕士论文,提出多种新的水印算法-Introduced a master s thesis based on DCT domain watermark and text watermark algorithm is proposed a variety of new watermarking algorithm
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