Description: 采用独立分量分析的音频数字水印DWT算法，包括水印的嵌入、提取、和常用的几种攻击测试。-Using independent component analysis of the audio digital watermark DWT algorithm, including the watermark embedding, extraction, and commonly used to test several attacks. Platform: |
Size: 1604608 |
Author:马致远 |
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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: 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: 本代码是利用dwt小波分析，实现了对音频加入灰度水印的源代码，可直接运行，生成两个音乐文件，一个是嵌入声音后的，另外一个是噪声文件。-This code is the use of wavelet analysis dwt, the realization of audio into grayscale watermark source code can be run directly, generates two music files, one after the embedded voice, the other is the noise file. Platform: |
Size: 1024 |
Author:宁宇 |
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Description: 基于DWT与DCT域相结合的音频数字水印的嵌入域提取代码，有着良好的鲁棒型及不可感知性。-Based on DWT and DCT domain, the combination of audio digital watermark embedding domain to extract the code, have a good robust type and to be perceived. Platform: |
Size: 1024 |
Author:洪冰清 |
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Description: 音频数字水印的实现，包含源代码，基于量化dct和自适应dwt两种算法，可实现水印的盲取-Audio digital watermarking, and includes source code, based on quantified dct and adaptive dwt two algorithms can achieve the blind watermark to take Platform: |
Size: 1270784 |
Author:洪冰清 |
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Description: 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 watermark design to audio signal as the carrier, the carrier signal is embedded in the audio signal.
Realize audio signal watermark. The transform domain wavelet transform (DWT) technology, the audio signal wavelet transform to extract the low frequency component, and then the watermark is embedded in the audio signal of low frequency. Experiments on first in MATLAB, the simulation experiment and by adding noise and filter and so on interference to test the algorithm the transparency and robustness, and by using the C language were tested, and the
Some modification, such as join timer and interrupt handling and join buffer in DSP board to add watermark audio sound broadcast.
Platform: |
Size: 300032 |
Author:江晨城 |
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Description: 一种基于DWT小波变换的数字音频水印嵌入方法，供大家参考学习-Based on the the DWT wavelet transform digital audio watermark embedding method for your reference learning Platform: |
Size: 861184 |
Author:刘瑞远 |
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Description: 研究中我么采用分段的方法对数字音频信号嵌入水印。为便于研
究，以灰度图像为数字水印原始信号经二值化处理后得到水印再嵌入
音频信号的离散变换域中，从而得到嵌入水印的音频信号，其实现过
程原理框图如图1 所示。在水印嵌入的过程主要实现四个阶段的任
务：(1)数据准备与预处理，主要是准备好水印原始图片和待嵌入水印
的音频信号 (2)音频信号分段处理，用于嵌入水印的音频数据部分等
分成(m1*m2)个音频数据段 (3)水印图像降维处理，在此过程灰度图像
水印转化为二值图象, 要将其嵌入到一维的数字音频信号中, 必须将
二维的图像转化成一维的序列 (4)将水印嵌入到数字音频信号中,从而
最终获得带数字水印的音频信号。-The study I Mody, segmented digital audio signal embedded watermark. Discrete transform domain to facilitate the study of the grayscale image for the digital watermark the original signal is obtained after the binarization processing watermark embedded in the audio signal, thereby obtaining the watermark embedded in the audio signal, and its implementation process schematic block diagram shown in Figure 1. Mainly in the watermark embedding process to achieve the task of four phases: (1) The data preparation and pretreatment, is ready to watermark the original picture and to be embedded in the audio signal of the watermark (2) audio signal segment processing for embedding watermark The audio data portion is divided into (m1* m2) audio data segment (3) The watermark image dimension reduction processing, binary image is converted to grayscale image watermark in this process, and to be embedded into a digital audio signal of a one-dimensional , two-dimensional images must be converted in Platform: |
Size: 1024 |
Author:吴吟骋 |
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Description: 基于小波域变换的数字音频水印算法，该算法对音频信号实施小波变换，对精细分量的能量进行比较，根据能量比较的结果及水印比特，结合人类听觉系统，采取缩小或不改变精细分量能量的方法，在精细分量中嵌入水印。-Base on DWT of the digital audio watermarking algorithm，the audio signalhas been transformed by DWT, the energy of detail coefficient of the first three sections has been compared. According to energy comparison and watermark bit. Adopting the way of not changing or reducing energy of the detail coefficient, the watermark has been embedded into the detail coefficient. Platform: |
Size: 3312640 |
Author:lemon |
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Description: 本次研究主要内容是对音频信号进行数字水印加密技术的分析，数字水印技术作为保密技术的一种形式，将具有特殊含义的数据信息嵌入到数字媒体中，以达到对数字媒体进行辨识、标记和版权保护的目的。主要介绍几种水印的嵌入方法：相位法、回声法、时域方法、频域方法、小波域变换等。-Digital audio watermarking is nowadays gaining popularity among the original audio
content producers. It provides a way to the owner to prove ownership by using watermark
which forms integral part of audio. An approach is made in this paper to collectively
introduce applications and techniques up till developed for audio watermarking.The
proposedalgorithm is based on wavelet transform which has efficient computational load and also on cosine transform for increasing the watermark embedding capacity. Keywords: Watermark, audio, DFT, DCT, DWT, and DSSS.
Platform: |
Size: 2048 |
Author:王宇童 |
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Description: 基于数字音频水印的dwt变换，程序代码。包含嵌入提取攻击等相关内容，程序稳定可靠便于使用。主要用于对于图像水印的安全保护。-Digital audio watermarking based on DWT transform, the program code. Contains embedded extraction attacks and other related content, the program is stable and reliable and easy to use. Mainly used for security protection of image watermark. Platform: |
Size: 318464 |
Author:海 |
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Search - dwt audio watermark