登录
首页 » matlab » logistic_dwt

logistic_dwt

于 2009-08-07 发布 文件大小:2KB
0 231
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

  • ruihua
    对一个图像进行锐化。让图像看上去更清晰,轮廓更明显。(An image sharpening. Let the image looks clearer and more obvious profile.)
    2010-06-01 00:24:54下载
    积分:1
  • section_to_plane
    这个主要是我所做的一段matlab代码,主要实现剖面上的数据在平面上求解的过程(this I was doing a Matlab code, main profile in the data plane for the course)
    2006-12-13 17:47:21下载
    积分:1
  • 幅度误差对MUSIC影响
    说明:  从理论上介绍了MUSIC算法原理、分析了阵列幅度误差对MUSIC算法性能的影响(The principle of music algorithm is introduced in theory, and the influence of array amplitude error on the performance of music algorithm is analyzed)
    2020-09-03 15:28:07下载
    积分:1
  • 2Dman
    说明:  一个相当不错的二维人物动画代码,大家可以学习学习。(a very good 2-D character animation code, we can learn from him.)
    2006-03-17 19:16:44下载
    积分:1
  • IEEE-1394
    IEEE1394的相关介绍,是1394入门的首选!强烈推荐朋友们(IEEE1394 relevant, the portal is the first choice for 1394! Strongly recommend friends to s)
    2006-11-29 11:08:12下载
    积分:1
  • adaboos_demo
    adaboost demo this is very much useful to evalute a demo of adaboost
    2010-02-01 01:28:51下载
    积分:1
  • kmean
    确定K均值最佳聚类数,把数据导入后运行即可(Determining the best clustering number of K mean)
    2018-09-20 10:01:06下载
    积分:1
  • si1010_TxTone_setup
    这个是silabs的芯片si1010的发射单音信号的实例,因为涉及保密,所以修改了一部分,测试可用(This is an example of the tone signal transmitter chip si1010 silabs, and because it involves confidential, so modify the part of the test can be used)
    2014-01-13 09:30:30下载
    积分:1
  • MATLAB123
    这是我们学Matlab的课件,通俗易懂,希望大家可以看看,非常有用!(This is our study of the Matlab software, user-friendly, I hope that we can see, very useful!)
    2009-07-21 09:50:33下载
    积分:1
  • matlab-examples3
    matlab实用程序小合集第3部分,都是一些完成特定功能的小程序,很适合新手朋友(matlab utility small collection Part 3, are some small programs to accomplish a specific function, it is suitable for novice friend)
    2014-01-17 09:55:11下载
    积分:1
  • 696516资源总数
  • 106914会员总数
  • 0今日下载