登录
首页 » matlab » logistic_dwt

logistic_dwt

于 2009-08-07 发布 文件大小:2KB
0 220
下载积分: 1 下载次数: 1

代码说明:

说明:  】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.)

下载说明:请别用迅雷下载,失败请重下,重下不扣分!

发表评论

0 个回复

  • matlab-function
    自编基于龙格库塔法的Matlab数值积分函数 (Self-compiled Matlab based on Runge-Kutta method of numerical integration of functions)
    2011-11-16 10:38:20下载
    积分:1
  • 1234
    使用matlab进行编程,分别用雅可比、高斯赛德尔、超松弛迭代法解线性方程组(Using matlab programming, respectively Jacobi, high Sisaideer, over-relaxation iterative method for solving linear equations )
    2011-12-02 13:22:44下载
    积分:1
  • 分数阶动态和控制_书
    分数阶系统建模和控制的经典教材,深入浅出的讲述了相关知识(The classic textbook of modeling and control of fractional order system gives a brief account of relevant knowledge.)
    2018-05-07 20:56:58下载
    积分:1
  • endpointdetecting(matlab)
    语音端点检测,有助于除去语音信号中的噪音部分,留下有用的携带信息的部分,有利于提取其中有用的语音特征参数,从而提高识别率。(Endpoint detection, helps remove the noise part of the speech signal, leaving useful information-bearing part, is conducive to extract the speech feature useful to improve the recognition rate.)
    2010-10-21 21:16:43下载
    积分:1
  • ASR_matlab
    语音识别的MATLAB代码,包括用于测试的语音,实现了利用HMM(隐含马尔可夫)和DTW(动态规划)两种方法的实现。(ASR use HMM and DTW method include wave files use for test and training.)
    2020-12-13 22:39:15下载
    积分:1
  • IEEEXplore
    A Novel Technique to Compensate Voltage Sags in Multiline Distribution System—The Interline Dynamic Voltage Restorer
    2010-03-07 12:20:04下载
    积分:1
  • flyback
    design of flyback converter
    2013-12-03 19:25:44下载
    积分:1
  • LMSEqualizer
    Implementation of LMS-based Equalizer in MATLAB
    2009-04-22 04:44:58下载
    积分:1
  • Rayleigh
    设计信号传输的经典Rayleigh信道模型 由纯多径信号分量(没有直射分量)组成的接收信号包络服从 Rayleigh分布。 (Rayleigh signal model)
    2014-08-11 10:51:01下载
    积分:1
  • CoDE
    Differential Evolution with Composite Trial Vector Generation Strategies and Control Parameters
    2020-10-27 19:19:58下载
    积分:1
  • 696516资源总数
  • 106914会员总数
  • 0今日下载