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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--cascade-control-
这是一个比较简单的水箱水位串级控制的程序,供初学者学习。(This is a relatively simple tank level cascade control program for beginners to learn.)
- 2013-07-29 10:50:21下载
- 积分:1
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产生电压扰动数据,PSCAD仿真,可作为各类信号处理仿真的数据源...
产生电压扰动数据,PSCAD仿真,可作为各类信号处理仿真的数据源-Creates a voltage disturbance data, PSCAD simulation, can be used as various types of signal processing simulation data source
- 2022-05-17 10:43:04下载
- 积分:1
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multitool
MIMO Multitool for multiple input and muliple outputs
- 2011-06-11 10:56:36下载
- 积分:1
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mayatnik
说明: matlab pendulum simulink example
- 2020-03-01 21:35:14下载
- 积分:1
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approximateentropy
This is a article about approximate entropy.
It will be helpful for motor behavior and rehabilitation study.
- 2009-04-29 01:32:17下载
- 积分:1
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SCE
MetHaheuristic algorithm
- 2017-07-03 22:09:26下载
- 积分:1
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code
说明: c++程序设计源代码 各章节都有 希望对各位有用(c++ programming source code for all chapters)
- 2011-03-15 12:55:48下载
- 积分:1
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Image_Reconstruction_2D_FFT
This matlab code is used to reconstrcute 2D image by 2D_FFT.But we must resample the collected data by 2D interpolation.This method is useful and can be used in the real-time condition.
- 2010-05-14 20:46:55下载
- 积分:1
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juxingchuang
读取语音信号 对语音信号进行分帧 加矩形窗 傅立叶变换 并且实现倒谱(Read the speech signal of the voice signal framing plus Fourier transform rectangular window and realize cepstrum)
- 2011-06-07 22:28:15下载
- 积分:1