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pptMATLAB
说明: 用matlab处理图像的入门函数。包括图像读取,图像叠加,增强等。(analysis image signal using matlab method )
- 2010-04-29 14:48:03下载
- 积分:1
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601_Interleave
产生指定长度的S-rand interleaver序列的程序
(produce S-rand interleaver
)
- 2013-08-26 21:27:56下载
- 积分:1
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dcthide
dct隐写技术matlab实现资料。算法原理:通过在一个图像块中调整两个DCT系数的相对大小,隐藏秘密信息。
将载体图像分为8×8的块,做二维DCT变换
用来表示选中的两个系数的坐标对于第i bit秘密信息
if(要隐藏信息‘1’)
make
else
make
逆DCT变换,还原图像
(dct steganography matlab implementation information. Algorithm principle: an image block by adjusting the relative size of the two DCT coefficients, hidden secret information. The vector image is divided into 88 blocks, making two-dimensional DCT transform coefficients used to represent the coordinates of the selected two for the first i bit secret information if (to hide information ' 1 ' ) make else make the inverse DCT, restore image)
- 2013-11-01 19:47:13下载
- 积分:1
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voicebox
语音处理工具箱,用于matlab环境下,Mike Brookes编写,用于压缩和识别(Speech processing toolbox for matlab environment, Mike Brookes prepared for compression and recognition)
- 2008-12-20 10:50:48下载
- 积分:1
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time-series-about-matlab
混沌时间序列应用matlab的代码程序,挺有用的,可以看看(matlab time series)
- 2012-05-17 16:47:03下载
- 积分:1
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Cyclic-Hamming-code-Simulation
this is a Cyclic Hamming code Simulation in matlab.
- 2011-07-08 18:04:22下载
- 积分:1
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SSNRi
随机共振相似度的Matlab计计算程序,计算看出输入可直接使用。
(Stochastic resonance similarity Matlab count calculation procedure, the calculation to see that the input can be used directly.)
- 2012-06-09 10:46:38下载
- 积分:1
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FFT
理解快速傅里叶变换和反变换的好资料,是在MATLAB环境下联系的例子 (it is a good materials of understand the fast Fourier transform and inverse transform.)
- 2014-10-31 14:34:09下载
- 积分:1
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Elman
Elman神经网络:Elman网络是 J. L. Elman于1990年首先针对语音处理问题而提出来的, 它是一种典型的局部回归网络( global feed for ward l ocal recurrent)。Elman网络可以看作是一个具有局部记忆单元和局部反馈连接的前向神经网络。Elman网络具有与多层前向网络相似的多层结构。它的主要结构是前馈连接, 包括输入层、 隐含层、 输出层, 其连接权可以进行学习修正 反馈连接由一组“结构 ” 单元构成,用来记忆前一时刻的输出值, 其连接权值是固定的。在这种网络中, 除了普通的隐含层外, 还有一个特别的隐含层,称为关联层 (或联系单元层 ) 该层从隐含层接收反馈信号, 每一个隐含层节点都有一个与之对应的关联层节点连接。关联层的作用是通过联接记忆将上一个时刻的隐层状态连同当前时刻的网络输入一起作为隐层的输入, 相当于状态反馈。隐层的传递函数仍为某种非线性函数, 一般为 Sigmoid函数, 输出层为线性函数, 关联层也为线性函数。(Elman neural network: Elman JL Elman network is first proposed for speech processing problems in 1990. It is a typical local regression network (global feed for ward l ocal recurrent). Elman network can be seen as having a forward neural network of local memory unit and local feedback connections. Elman network has a multi-layer multilayer structure similar to the network. Its main structure is a feedforward connection, comprising an input layer, a hidden layer and output layer, which can be connected right learning correction feedback connected by a set of " structural" units, the output value of the memory for the previous time, which connection weights are fixed. In such a network, in addition to ordinary hidden layer, there is a special hidden layer, called an associative layer (or contact layer unit) this layer receives feedback signals the hidden layer, each hidden layer node has an associated layer node corresponding connection. The role of the associated layer is fo)
- 2015-03-26 22:36:26下载
- 积分:1
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AdaBoost算法
用matlab软件,实现adaboost算法。将数据集划分为训练集和测试集,给训练集的数据贴标签,用训练好的模型来测试测试数据的准确度。(Using Matlab to implement the AdaBoost algorithm. The data set is divided into training set and test set to label the data of the training set, and the accuracy of the test data is tested by the trained model.)
- 2017-12-23 17:21:29下载
- 积分:1