Description: 文章利用MATLAB语言及其小波工具箱，采用小波变换算法，开发数字水印嵌入系统，通过对原始静态图像和二值图像水印进行小波多分辨率分解，组合对应方向上的小波细节子图数据，从而实现了在原始静态图像上嵌入二值图像水印。有部分代码-article using MATLAB language and its toolbox, wavelet transform algorithm, development of digital watermark embedded systems, right through static images and the original binary image watermarking multiresolution wavelet decomposition, Portfolio corresponding direction on the details of wavelet-map data, thus realizing the original static image embedded binary image watermarking. Some code Platform: |
Size: 52224 |
Author:ming-ming |
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Description: 提出了一种基于小波域的图像数字水印算法·该算法将相互正交的两种水印(鲁棒水印和参考
水印)同时添加到经过DWT后的载体图像小波系数中,然后用小波反变换得到添加了水印的图像·用提取出
的参考水印来估计图像所受到的攻击,由于提取出的鲁棒水印所受的攻击与参考水印受到的攻击一样,因此
可以估计出原始的鲁棒水印·通过对嵌入水印的图像进行加入噪声、滤波、压缩以及裁剪等大量图像处理等试
验,均能正确检测出水印,表明该算法具有很好的感知效果和鲁棒性
-A wavelet-based image digital watermarking algorithm that the algorithm will be mutually orthogonal two watermarks (watermark robust watermarking and reference) at the same time added to the carrier after image after DWT wavelet coefficients, and then using wavelet transform has been Add a watermark image to use to extract a reference to estimate the watermark image by the attacks, as a result of the robust watermark extracted suffered attacks and the reference watermark by the same attack, it can be estimated through the original Robust Watermarking of the embedded watermark image by adding noise, filtering, compression and cutting, such as a large number of image processing such as testing, can correctly detect the watermark, show that the algorithm has good performance and robustness of perception Platform: |
Size: 190464 |
Author:李倩 |
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Description: 加入白噪声的音频水印程序，采用3级小波分解，将随机序列嵌入到低频系数中-Adding white noise of the audio watermarking procedure for the three wavelet decomposition, the random sequence is embedded into the low frequency coefficient Platform: |
Size: 1024 |
Author:小刀 |
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Description: this is partial code for paper "A Robust Wavelet-Based Watermarking Algorithm Using Edge Detection" Platform: |
Size: 1024 |
Author:Sathvika |
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Description: 本利用MATLAB，结合aronld变换实现了基于小波分解的图像数字水印算法，经调试通过-The use of MATLAB, with aronld Transform Wavelet-based Image Watermarking by debugging through the Platform: |
Size: 879616 |
Author:陈小潘 |
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Description: MATLAB基于小波变换的图像水印程序，还可以-MATLAB image watermarking based on wavelet transform procedure can also be Platform: |
Size: 1231872 |
Author:李云 |
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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: Owing to the broad application value of audio
watermarking in remote transmission and mobile
extraction, it is very important to study watermarking
approaches against A/D and D/A conversion. Based
on wavelet decomposition and cepstrum technology,
an audio watermarking algorithm is proposed where
the low-frequency wavelet coefficients are chosen for
cepstrum transforming. Then, the obtained cepstrum
data shows stable for watermark hiding by the
methods of edging data cutting and statistical mean
modification. The synchronization is not required in
the algorithm. Experimental results show that the
proposed algorithm can resist on the attack of A/D
and D/A successfully with features of large capacity
and zero bit error. It will be helpful for the mobile
audio in secure broadcast and management in the Platform: |
Size: 199680 |
Author:vinay |
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Description: All three, Discrete Wavelet Transform (DWT) - Singular
Value Decomposition (SVD) and Adaptive Tabu Search
(ATS) have been used as mathematical tools for embedding
data into an audio signal. In this paper, we present a new
robust audio watermarking scheme based on DWT-SVD and
ATS. After applying the DWT to the cover audio signal, we
map the DWT coefficients, and apply the SVD, we search for
the optimal intensity of audio watermarking by using the
ATS. Experimental results show that the watermarking
method performs well in both security and robustness to
many digital signals processing, such as filtering,
cropping, mp3 and random noise. Platform: |
Size: 267264 |
Author:Rishi |
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Description: 基于小波变换的扩频图象数字水印，将水印嵌入到小波中。以保证信息的安全-Spread spectrum based on wavelet transform image watermarking, the watermark is embedded into the wavelet. To ensure information security Platform: |
Size: 1024 |
Author:lina |
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Description: the Matlab project contains the source code used for simple watermarking using wavelet transform. Performs watermarking of the input image by decomposing the image using haar wavlet. Noise generated with normal distribution is used as the key and is added to the input image to obtain the watermarked image. Platform: |
Size: 1024 |
Author:santosh |
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Search - watermarking by wavelet