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Information-hiding
基于 DCT(离散余弦变换 )域的信息隐藏算法是目前应用最广的变换域算法 ,此类算法的最大不足是嵌信息量小。通过分析 DCT域隐藏算法隐藏容量少的原因 ,提出了一种大容量的 DCT域信息隐藏算法。算法首先对载体图像进行频谱均匀化处理 ,然后对图像进行全局 DCT变换 ,并将隐藏信息嵌入到载体图像的低频 DCT系数上 ,信息嵌入采用分段量化的方法实现 ,提取隐藏信息时不需要原始载体图像。实验结果表明 ,该算法的嵌入容量大 ,不可感知性好。(Based on DCT (discrete cosine transform) domain information hiding algorithm is the most widely used transform domain algorithms, the largest of these algorithms is the lack of a small amount of information embedded. Hiding Algorithm for DCT domain by analyzing the hidden reasons for the low capacity, a large capacity of information hiding algorithm for DCT domain. Firstly, the spectrum of the carrier image homogenization, and then the image is a global DCT transformation, and hidden information embedded into the image of the low-frequency DCT coefficients, the information embedded in the methods used to achieve sub-quantization, extract hidden information without the original Vector image. Experimental results show that the algorithm embedding capacity, can not be perceived good.)
- 2021-04-06 09:29:03下载
- 积分:1
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IEEE33Forwardandbackward
说明: ieee33节点系统采用前推回代法,matlab编程,(ieee33forwardbackward)
- 2020-04-15 20:02:57下载
- 积分:1
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photonic-crystal-plane-wave-method
二维光子晶体能带结构算法和三维光子晶体能带结构算法,主要是平面波展开法计算的(Two-dimensional and three-dimensional photonic crystal band structure algorithms)
- 2013-10-17 21:06:42下载
- 积分:1
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TS
说明: 采用人工智能神经网络的改进Holpfield神经网络解决旅行商问题(Improved use of artificial neural network neural network to solve the traveling salesman problem Holpfield)
- 2015-01-18 10:11:39下载
- 积分:1
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anotherLMS
用matlab编写的另外一种lms算法实现的程序,两者可以对比应用,经过调试,可以使用
- 2009-03-14 16:32:41下载
- 积分:1
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KTHorb
There are numerous MATLAB m-files included in this software package. Thus, the the authors have bundled all files and sample data in a *.zip file (KTHorb.zip). The Readme.txt file describes the directories created when the .zip file is unpacked. The file Matlab_implementation.doc (or Matlab_implementation.txt) describes some of the classes and methods included in the package for GPS satellite orbit interpolation.(There are numerous MATLAB m-files included in this software package. Thus, the the authors have bundled all files and sample data in a*. zip file (KTHorb.zip). The Readme.txt file describes the directories created when the. Zip file is unpacked. The file Matlab_implementation.doc (or Matlab_implementation.txt) describes some of the classes and methods included in the package for GPS satellite orbit interpolation.)
- 2007-12-26 04:10:55下载
- 积分:1
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hardofdm
ofdm加窗前后的对比频谱图,以及循环前后缀重叠与不重叠两种情况的对比,最后给出了误码率的计算。(ofdm added after the contrast spectrum window, and the cycle before the suffix overlap and contrast the two cases do not overlap Finally, the bit error rate calculation.)
- 2011-05-28 14:31:24下载
- 积分:1
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svmtest
简单地支持向量机的测试程序,希望对你们有用,它是测试两个线性分类的。(A simple test program to support vector machine, and I hope useful to you.)
- 2014-08-26 18:52:42下载
- 积分:1
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traffic_of_cross_street
基于Matlab的交通流及交叉口信号控制的仿真研究,找得硕士毕业论文,有做相关题目开发的同学可做参考(Matlab based on the traffic flow and intersection signal control simulation research, find a master s thesis, there are so related to the subject development of the students can refer to)
- 2008-12-31 09:04:10下载
- 积分:1
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demo_OceanOptics
demo OceanOptics communication systems.
- 2013-08-09 23:16:01下载
- 积分:1