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Distortionless_Data_Hiding
The code implements the following paper:
Guorong Xuan, Jiang Zhu, Jidong Chen, Shi Y.Q., Zhicheng Ni, Wei Su, "Distortionless data hiding based on integer wavelet transform" IET Electronics Letters, Volume: 38, Issue 25, page 1646- 1648, December 2002. (ISSN: 0013-5194)
The watermark embedding and extraction modules have been implemented separately.
The watermark embedding module embeds the watermark using bitplane compression in the integer wavelet transform domain.
The watermark extraction module extracts the previously embedded watermark and restores the original image.
A logo image is used as a watermark but can be replaced with any thing.
- 2010-07-30 09:20:07下载
- 积分:1
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BispectrumWavelets
用双谱和小波变换去除信号中加性高斯噪声的相关程序
1.实现单个变量的双谱分析程序
2.用傅立叶反变换求自相关函数的程序
3.用fft求取喜好频谱、功率谱、均方根谱、对数谱的程序
4.读取.wav语音信号后用小波去加信白噪声的程序
5.用各种小波和阀值对同一信号去加性噪声效果比较的程序
(Double-spectral and wavelet transform to remove the signal plus Gaussian noise procedures 1. To achieve a single variable pairs of spectral analysis procedures 2. Using Fourier inverse transform procedures for seeking self-correlation function 3. To strike a preference to use fft spectrum , power spectrum, RMS spectrum, several spectra of the procedure 4. read. wav audio signal with wavelet plus a letter to the white noise process 5. with a variety of wavelet and threshold on the same signal to additive noise Comparison program)
- 2009-11-10 21:43:58下载
- 积分:1
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FFTinGUI1
This program makes the out put to the serial output port
- 2009-05-07 19:22:16下载
- 积分:1
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dsc-single-sideband-modulation
说明: dsc单边带调制。功能是用10Hz的载波信号去调制频率为500Hz的基带信号,然后得到单边带调制信号(single-sideband modulation)
- 2011-04-01 10:15:56下载
- 积分:1
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classical-algorithm
matlab经典算法的程序,适合数学建模时使用(Matlab algorithm procedures, suitable for classical mathematical modeling when used)
- 2011-09-16 15:47:45下载
- 积分:1
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Dynamic_Copula_Toolbox_3.0
贡献一个Dynamic Copula Toolbox 3.0资源(Contribution to a Dynamic Copula Toolbox 3.0 Resource)
- 2014-07-03 21:23:14下载
- 积分:1
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xt_connlimit
netfilter module to limit the number of parallel tcp connections per IP address.
- 2014-08-24 11:48:41下载
- 积分:1
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mmse_QPSK_rayleigh_channel
MIMO系统中QPSK信号的MMSE检测算法程序,用于衰落信道环境。(MMSE detection for QPSK signals in MIMO systems.)
- 2015-03-22 20:46:27下载
- 积分:1
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30个智能算法模型
1-8遗传算法,9 多目标Pareto最优解搜索算法,10 基于多目标Pareto的二维背包搜索算法,11-12免疫算法,13-17粒子群算法,18鱼群算法,19-21模拟退火算法,22-24蚁群算法,25-27神经网络,28 支持向量机的分类,29 支持向量机的回归拟合,30 极限学习机的回归拟合及分类(1-8 genetic algorithm, 9 multi-objective Pareto optimal solution search algorithm, 10 multi-objective Pareto based two-dimensional knapsack search algorithm, 11-12 immune algorithm, 13-17 particle swarm algorithm, 18 fish swarm algorithm, 19-21 simulated annealing algorithm, 22-24 ant colony algorithm, 25-27 neural network, 28 support vector machine classification, 29 support vector machine regression simulation Regression Fitting and Classification of Combination, 30 Extreme Learning Machines)
- 2018-12-03 11:17:41下载
- 积分:1
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PA_LMS
用simulink简历的OFDM预失真仿真模型(OFDM with pre-distortion resume simulink simulation model)
- 2010-12-03 20:21:17下载
- 积分:1