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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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predictive-control
DMC，MAC以及广义预测控制的一些程序(DMC, MAC and generalized predictive control of some of the procedures
)
- 2012-03-28 09:25:25下载
- 积分：1
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7941940PPP_code
非常好的精密单点定位程序，直接下载星历和钟差文件就能计算。(Very good precise point positioning procedures, direct download ephemeris and clock error file can be calculated.)
- 2020-11-15 00:09:42下载
- 积分：1
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量子粒子群算法实例
适用量子粒子群算法获得所需的最优值，可以依概率收敛到全局最优(Quantum particle swarm optimization algorithm is applied to get the optimal value)
- 2018-05-10 14:57:31下载
- 积分：1
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nchoosek_wacs5
组合算法
Matlab中有函数nchoosek，它是返回全部可能的给合数，本例是一个个地产生组合(Combination algorithm
In Matlab function nchoosek, it is possible to return all composite numbers in a matrix, in this case is a combination of one to generate)
- 2010-10-05 18:38:21下载
- 积分：1
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simpleekf
说明： 本matlab程序实现了扩展kalman滤波，对一个随机生成的正弦信号进行EKF滤波，并画图展现对比。(This Matlab source code is the demo of Extended Kalman Filter，It s filter for randomly sine singal and plot the result。)
- 2010-03-30 11:01:26下载
- 积分：1
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ech_sadf
it will compute the echo cancellation using thew subadaptive filter with main filter length 256 and sub adaptive filter length 64
- 2011-11-29 16:58:16下载
- 积分：1
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Robust.Adaptive.Beamforming
李建等写的鲁棒自适应波束形成，电子书，pdf格式，英文版。介绍了各种自适应波束形成算法(Li and other written robust adaptive beamforming, e-books, pdf format, in English. Describes the various adaptive beamforming algorithms)
- 2013-12-19 22:10:07下载
- 积分：1
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factor
此MATLAB程序实现函数的阶乘功能，经调试，完全正确(Procedures for implementation of this MATLAB function factorial function, with debug, completely correct)
- 2009-03-19 22:31:18下载
- 积分：1
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eg1_3780
说明： 在MATLAB环境下的3780点FFT仿真(The Simulation of 3780 point FFT in MATLAB environment.)
- 2011-03-09 10:29:46下载
- 积分：1
