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matlab_watermark
本文算法是将24 位真彩图的亮度分量分块
DCT ,然后利用DCT 量化系数的奇偶特性嵌入8
位灰度水印图,并通过PN 序列加密来保证水印的
安全性。算法中,将灰度图像转换为二进制数据
流,置乱后扩频调制,隐藏在宿主DCT 系数量化值
中,提取时不需要宿主信号,实现水印信号的盲提
取。(This algorithm is 24-bit true color pictures of the luminance component of block DCT, quantization DCT coefficients and then use the parity properties of 8-bit grayscale watermark embedding map, and through the PN sequence of encryption to ensure the security of the watermark. Algorithm, the gray image into binary data stream, scrambling after the spread spectrum modulation, hidden in the host DCT coefficient quantization values, the extraction does not require the host signal, the blind watermark extraction.)
- 2010-12-24 11:11:10下载
- 积分:1
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CBF
使用CFB方法实现对信号方位角的估计 分别为22° -22°(CFB methods used to achieve the estimated azimuth of the signal were 22 °-22 °)
- 2011-04-26 22:22:24下载
- 积分:1
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QUBIT4MATLAB2.0
该算法是用于量子运算的matlab程序,包括声称量子态,量子寄存器等(the algorithm for quantum computation Matlab procedures, including the claim that quantum states, such as Quantum Register)
- 2007-06-21 20:45:29下载
- 积分:1
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imgsteg
THIS CODE IS REG.IMAGE STEGNOGRAPHY
- 2014-09-21 14:10:28下载
- 积分:1
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m
说明: 关于如何实现计算平均功率频率(MPF)的功能的函数(A function of how to calculate the mean power frequency (MPF) function)
- 2014-11-08 00:39:58下载
- 积分:1
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VC_Matlab_MultiThread_Demo_2009_07_03
Visual C++ 下调用Matcom转换的Matlab代码(Visual C++ under the call of the Matlab code conversion Matcom)
- 2009-07-10 17:35:32下载
- 积分:1
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svm-10.2
support vector machine least square
- 2010-05-08 18:41:53下载
- 积分:1
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OSU_SVM-Classifier-Matlab-Toolbox-v3.00.00
用matlab编写的用语分类的支持向量机(using Matlab language prepared by the breakdown of support vector machines)
- 2006-11-22 14:40:21下载
- 积分:1
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matlab_oop
说明: MATLAB 语言的新特性,面向对象编程的入门教材。(New features in MATLAB language, object-oriented programming primer.)
- 2010-04-19 17:25:48下载
- 积分:1
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Simulink_Files_DPD
Nonlinear Distortion in Wireless Systems: Modeling and Simulation with Matlab一书中的源代码simulink文件.(This book covers the principles of modeling and simulation of nonlinear distortion in wireless communication systems with MATLAB® simulations and techniques
In this book, the author describes the principles of modeling and simulation of nonlinear distortion in single and multichannel wireless communication systems using both deterministic and stochastic signals. Models and simulation methods of nonlinear amplifiers explain in detail how to analyze and evaluate the performance of data communication links under nonlinear amplification. The book addresses the analysis of nonlinear systems with stochastic inputs and establishes the performance metrics of communication systems with regard to nonlinearity. In addition, the author also discusses the problem of how to embed models of distortion in system-level simulators such as MATLAB® and MATLAB Simulink® and provides practical techniques that professionals can use on their own projects. Finally, the book explores simulation )
- 2013-01-20 13:26:44下载
- 积分:1