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stezcr
说明： to find short time energy and zero cross rate
- 2010-07-08 18:26:45下载
- 积分：1
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dwprotected
Matlab source code for DCT-based watermarking for grayscale images. DCT-based watermark recovering without resorting to the uncorrupted original image. Digital watermarking has been proposed as a viable solution to the need of copyright protection and authentication of multimedia data in a networked environment, since it makes possible to identify the author, owner, distributor or authorized consumer of a document.
A new watermarking technique to add a code to digital images is presented: the method operates in the frequency domain embedding a pseudo-random sequence of real numbers in a selected set of DCT coefficients. Watermark casting is performed by exploiting the masking characteristics of the Human Visual System, to ensure watermark invisibility. The embedded sequence is extracted without resorting to the original image, so that the proposed technique represents a major improvement to methods relying on the comparison between the watermarked and original images.
- 2009-07-13 12:14:31下载
- 积分：1
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generate-random-number
generate random number (show how to generate random number in COmmunication)
- 2013-03-22 11:40:57下载
- 积分：1
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exam_fourier
用傅里叶变换对地震信号进行时频分析，通过修改参数可以深刻的认识傅里叶变换在时频分析中的意义，适合地震信号研究的初学者。(Fourier transform of the seismic signal frequency analysis, parameter changes can be profound understanding of Fourier transform in the time-frequency analysis of significance for the seismic signals of beginners.)
- 2013-04-19 10:56:49下载
- 积分：1
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Chapter2
北京航空航天大学出版的matlab从零到进阶第二章的示例程序(Beijing University of Aeronautics and Astronautics matlab published the first chapter from zero to advanced sample program)
- 2014-01-13 10:48:20下载
- 积分：1
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MATLAB
为《结构分析的有限元法与MATLAB程序设计》一书的源代码。(As a " structural analysis of finite element method and MATLAB program design," a book' s source code.)
- 2010-07-24 23:52:13下载
- 积分：1
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a_1st_step_jacknife
code for jack knifing
- 2011-08-08 14:05:02下载
- 积分：1
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Lineradapter
用于数控机床直线转接的程序包括C功能，我花了两天才编完的(Linear adapter for CNC machine tool program include C functions, I spent two days series of completed)
- 2010-07-06 10:17:56下载
- 积分：1
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Matlab_graphic
MATLAB图形处理教程 里面讲述了MATLAB当中的各种利用，以及源程序(Tutorial MATLAB graphics inside of them about the use of MATLAB, as well as the source)
- 2009-05-15 15:10:22下载
- 积分：1
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sr
说明： 运用龙格库塔算法求解朗之万方程，进而实现随机共振系统(The use of Runge-Kutta algorithm for solving Langevin equation, and then the realization of stochastic resonance systems)
- 2008-06-11 16:28:44下载
- 积分：1
