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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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MATLAB
说明： matlab教案pptMATLAB程序设计教程电子教案60rar(matlab lesson plans ppt " MATLAB Programming Guide" e-lesson plans-2660.rar)
- 2009-07-22 23:20:17下载
- 积分：1
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gibbs
吉布斯抽样问题的MATLAB工具箱吉布斯抽样问题的MATLAB工具(gibss toolbox for matlab)
- 2009-12-12 12:35:42下载
- 积分：1
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0thoisbebsb0
matlab file <<< just see it
- 2009-12-26 23:38:41下载
- 积分：1
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FDTD3D
FDTD三维场的叠加画图显示，很不错的程序。希望对大家有用!(Superposition of three-dimensional field FDTD drawing shows a very good program. Hope it useful!)
- 2011-06-07 17:00:05下载
- 积分：1
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CODE-(1)
matlab code for ml detection in networks
- 2013-12-08 03:59:59下载
- 积分：1
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BLDC_01
brushless direct current motor
- 2010-09-10 20:18:25下载
- 积分：1
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空时二维自适应处理 stap1
空时二维自适应处理Matlab程序，采用线性调频信号仿真杂波(Space-Time Adaptive Processing Matlab program, using the linear FM signal simulation clutter)
- 2012-05-31 12:45:30下载
- 积分：1
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ahp-matlab
层次分析法的具体MATLAB程序，这对于数据挖掘工作非常重要。(AHP specific MATLAB program, which is very important in data mining.)
- 2009-06-05 21:35:03下载
- 积分：1
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Option-Sensitivity-Measures
此程序是关于经济学中布莱克斯科尔斯模型
的matlab实现(This procedure creates a three-dimensional plot showing how gamma changes relative to price for a Black-Scholes option. Recall that gamma is the second derivative of the option price relative to the underlying security price. The plot shows a three-dimensional surface whose z-value is the gamma of an option as price (x-axis) and time (y-axis) vary. It adds yet a fourth dimension by showing option delta (the first derivative of option price to security price) as the color of the surface)
- 2012-04-24 16:09:03下载
- 积分：1
