Description: 一种基于DCT变换的数字水印算法的实现过程,水印为伪随机序列，包括嵌入和提取两个过程。其中textmark.m为攻击实验代码。-DCT-based Digital Watermarking Algorithm Transform realize the process, the watermark for the pseudo-random sequence, including both the process of embedding and extraction. Textmark.m experiment in which the attack code. Platform: |
Size: 2048 |
Author:陈日进 |
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Description: 基于听觉频率掩蔽效应的音频数字水印算法和一种基于人耳掩蔽效应的DCT域音频水印-Auditory masking effect on the frequency of the audio digital watermarking algorithm based on the human ear and a masking effect of the DCT-domain audio watermarking Platform: |
Size: 923648 |
Author:lizhenzhen |
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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: 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 Platform: |
Size: 2048 |
Author:凡超 |
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Description: 基于离散余弦变换的数字音频水印技术,可供毕业设计的同学参考-DCT-based digital audio watermarking technique，could be a reference for the students under final year projects Platform: |
Size: 3072 |
Author:WB |
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Description: 本文在DCT噪声信号模型研究的基础上,提出了一种新的音频水印嵌入位置选择策略和一个应用该策略的自适应音频水印算法. 通过定义DCT系数的噪声敏感度,建立了水印嵌入位置和嵌入水印后的音频信号的听觉感知性之间的关系,根据音频水印的不可听性的要求选择最优的嵌入位置,然后调节水印强度来满足鲁棒性的要求,从而最大程度地保持音频水
印的不可听性和鲁棒性,为解决音频水印嵌入过程中不可听性和鲁棒性之间的矛盾提供了一种策略.-Though m any w orks in the literature agree that w aterm ark should be em bedded in the middle2fre2
quency coefficients or percep tually significant components, how to determ ine the position em bedded has no universal
definition. A new em bedding strategy and an algorithm app lying the strategy are p roposed for audio w aterm arking in
DCT dom ain based on research of DCT noise m odal. B y defining a noise sensitivity vector, a m ath relationship betw een
the w aterm ark em beddable position and the audible quality of the audio file w ith w aterm ark is set up. Platform: |
Size: 873472 |
Author:郑杨 |
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Description: 主要介绍基于dct的数字音频水印，以及水印的嵌入和水印的提取-Introduced digital audio watermarking based on dct, and the watermark embedding and watermark extraction Platform: |
Size: 1024 |
Author:苏日新 |
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Description: 主要介绍基于dct的数字音频水印，以及水印的嵌入和水印的提取-Introduced digital audio watermarking based on dct, and the watermark embedding and watermark extraction Platform: |
Size: 1024 |
Author:苏日新 |
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Description: 主要介绍基于dct的数字音频水印，以及水印的嵌入和水印的提取-Introduced digital audio watermarking based on dct, and the watermark embedding and watermark extraction Platform: |
Size: 19456 |
Author:苏日新 |
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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: 基于DCT域音频水印完整源代码，包括水印图像的预处理（二维二值图像Arnold变换、混沌加密、降维），水印的嵌入提取以及检测，信噪比和相似性系数。-Based on the the DCT domain audio watermarking complete source code, including the watermark image preprocessing (two-dimensional binary images Arnold transform chaotic encryption, dimensionality reduction), the embedded watermark extraction and detection, signal-to-noise ratio and similarity coefficient. Platform: |
Size: 21720064 |
Author:zhangmingyang |
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Description: a new audio watermarking based on double insertion and double transformation DWT-DCT presented in IEEE ICM 2012 Platform: |
Size: 4096 |
Author:yassinov |
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Description: 基于DCT的音频数字水印，程序简单易懂，适合新手参考学习-DCT-based digital audio watermarking, the program is simple and easy to understand for novice reference study Platform: |
Size: 4167680 |
Author:小样 |
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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: 将具有特定标识的信息隐藏在数字化图像、视频、音频等多媒体。是一种基于DCT变换和ARNOLD置乱技术的数字图像水印算法，首先通过Arnold置乱二值水印图像对水印图像进行加密，其次将加密后的图像选择适合的强度，在载体图像中选择低频信号的位置进行嵌入。适合用于简单的图片版权保护。(Information that has a specific identity is hidden in digital image, video, audio and other multimedia. Is a kind of based on DCT transform and ARNOLD scrambling technology of digital image watermarking algorithm, first by ARNOLD scrambling binary watermark image of watermark image is encrypted, then will choose suitable strength, the encrypted image in the image embedded in select the location of the low frequency signal. Suitable for simple image copyright protection.) Platform: |
Size: 1024 |
Author:潇倩
|
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Search - dct based audio watermarking