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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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ddssss011i
直接序列扩频通信系统仿真程序源码，使用maatlab语言设计的程序源码。 可直接使用。
(Direct sequence spread spectrum communication system simulation, source code, program source code using maatlab language design. Can be used directly.)
- 2012-07-10 09:18:17下载
- 积分：1
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tqwt_matlab_toolbox
可调Q因子小波变换，用在故障诊断中，程序中包含了原始TQWT工具箱和轴承振动信号信号的谱包络的求取等，最新的应用成果(Adjustable Q-factor wavelet transform used in fault diagnosis, the program includes a spectral envelope of the original TQWT toolbox and bearing vibration signal signal to strike, etc., the latest application of the results)
- 2014-09-26 11:50:34下载
- 积分：1
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2ASK1
输入一个任意长的数字序列，使用幅度调制法调制，然后使用包络检波法解调(Enter an arbitrarily long sequence of numbers, use the modulation amplitude modulation method, and then use the envelope detection method demodulation)
- 2014-12-19 14:31:30下载
- 积分：1
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Simulink-tutorial
Simulink简明教程，快速入门，建模方法，运行仿真等(Simulink simple tutorial)
- 2011-02-15 10:24:18下载
- 积分：1
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D_ARORD
自学编程的必备工具之一，建立简单的模型，可以通过建立模型来提高编程能力(Teach yourself programming tool, establishing simple model, can we establish a model to improve programming ability)
- 2012-06-14 19:47:21下载
- 积分：1
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KL
模式识别里的KL变换的代码，应用Iris数据集实现KL变换算法。(KL transform code, pattern recognition application Iris data set KL transform algorithm.)
- 2013-05-14 17:28:26下载
- 积分：1
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nurbs
在数控系统中实现高速高精加工的nurbs插补，这个代码是在matlab对其进行的仿真(In the NC system to achieve high-speed and high precision of nurbs interpolation, this code is carried out in the matlab simulation)
- 2020-10-06 13:17:38下载
- 积分：1
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MATLAB_GUI
MATLAB图形句柄
1 图形对象及其句柄
2 图形对象属性
3 图形对象的创建
(MATLAB graphics handle a graphic object and the handle 2 graphics object property 3 to create graphic objects)
- 2010-08-04 13:22:25下载
- 积分：1
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Nouveau-WinRAR-archive
initiation de langague Maltlab1
- 2011-12-06 23:03:47下载
- 积分：1
