Description: 该文提出一种基于小波变换和后对音频进行小波变换， 小波变换的近嵌入水印。在水印提取过程中，不需要原始音频信号的参与。仿真试验证实了该算法的稳健性和不可感知性。-This paper presents a wavelet transform-based and audio after the wavelet transform, wavelet transform nearly embedded watermark. In the watermark extraction process does not require the participation of the original audio signal. Simulation confirmed the robustness of the algorithm and non-sensory. Platform: |
Size: 152576 |
Author:H Simon |
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Description: 本代码是一些关于水印处理的一些算法用小波变换来实现，在嵌入水印之后用各种攻击检验算法的鲁棒性-The code is some deal about a number of watermarking algorithm using wavelet transform to achieve, in the embedded watermark after the attacks with a variety of test algorithm robustness Platform: |
Size: 14336 |
Author:刘林冲 |
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Description: 数字音频水印的嵌入和检测，使用的算法是基于小波变换-Digital audio watermark embedding and detection algorithms used are based on wavelet transform Platform: |
Size: 2048 |
Author:周亮 |
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Description: 基于离散小波余弦变换DCT的数字水印算法，实现了水印的嵌入提取等过程。毕业设计源代码-Discrete Cosine Transform Based on Wavelet Digital Watermarking Algorithm in DCT, the watermark embedded in the realization of the process of extraction. Graduation Project source code Platform: |
Size: 218112 |
Author:xiaobao89 |
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Description: 基于小波的数字水印，含MultiMark、WaterMark两种方法。-Digital Watermarking Based on Wavelet, including MultiMark, WaterMark two ways. Platform: |
Size: 48128 |
Author:阿彪啊 |
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Description: 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. Platform: |
Size: 4096 |
Author:李昂 |
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Description: 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 algorithm. Platform: |
Size: 8192 |
Author:malinlin |
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Description: 】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 in DWT
(Discrete Wavelet Transform) domain is seperated into some pieces determined by the ratio between the length of
the low frequency parts and the length of the encrypted watermark. Every bit of the watermark is added into the
relevant pieces of the low frequency parts in the DWT domain. Experimental results show that the algorithm is
robust against some StirMark attacks. Platform: |
Size: 2048 |
Author:李斌 |
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Description: 六个代码分别是小波变换用于水印密写,离散余弦变换应用于水印密写和空域算法水印算法-Six codes are used for watermark Steganography wavelet transform, discrete cosine transform used in secret writing and airspace watermark Watermarking Algorithm Platform: |
Size: 5120 |
Author:张楠 |
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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: 本函数将完成W-SVD模型下数字水印的检测 corr_coef, corr_DCTcoef 分别为不同方法下检测出的相关性值
function [corr_coef, corr_DCTcoef] = wavedetect(test, original, seed, wavelet, level, alpha, ratio)- This function will complete the W-SVD model digital watermark detection corr_coef, corr_DCTcoef respectively, under different methods to detect the value of the correlation function [corr_coef, corr_DCTcoef] = wavedetect (test, original, seed, wavelet, level, alpha, ratio) Platform: |
Size: 1024 |
Author:李颖 |
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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: 207872 |
Author:vinay |
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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: 346112 |
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: 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. Platform: |
Size: 418816 |
Author:还都 |
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Description: 随着图像技术的快速发展,当信息内容涉及到政治、军事、商业、法庭举证等重要数据时,其真实性和完整性必
须得以确认。提出一种结合Zernike 矩的半脆弱水印算法,利用图像小波变换低频子带的Zernike 矩幅值的半脆弱特性区
分恶意攻击和偶然攻击,提高了水印的安全性,并能准确地定位出篡改区域。-With the rapid development of the image techniques , If the image contains important data , such as politics ,
military , commerce and evidence , the authenticity and integrality of the image must be validated. In this paper , a semi2f ragil2
eim watermarking algorithm using Zernike moment s is proposed , it can distinguish malicious modification f rom incidental
modification according to semi2f ragile characteristics of zernike moment s of the low f requency subband in the integer wavelet
t ransform domain of an image , improving watermark security , and locating the tamper areas well and t ruly. Platform: |
Size: 343040 |
Author:ll |
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Description: 这是基于小波变换的音频水印matlab程序, 该程序是基于三段式能量关系嵌入水印的,对研究水印的同仁有帮助。
-This is the audio watermarking matlab program based on wavelet transform. it is based on three-power relations embedded watermark and has help to the watermark research colleagues.
Platform: |
Size: 2048 |
Author:王雪 |
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Search - wavelet watermark