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caculate newy-west standard deviation

morphological operation such as erosion is very suitable to compress the size of the cell by using SE.

EasyMod is a MatLab/Scilab toolbox for teaching modal analysis. It provides a set of functions allowing to establish the identification of modal parameters and these validation. Nowadays, circle-fit, line-fit and least square complex exponential methods are implemented. In addition, some relevant functions are offered in order to complete a modal analysis: operations on the frequency response function (FRF) , generation of FRF from mass, damping and stiffness matrices, MAC (modal assurance criterion) and modal collinearity

自适应滤波算法与实现，有些matlab的实现方法，一本不错的书(A book for adaptive digital filter and implement, and this book is very good)

说明：  采用Matlab对信号进行四层分解与重构，合成一个文件更有利于理解Matlab功能(use Matlab to finish your signal processing)

basic operations on an image like negative, log

wdcbm的使用（Birgé-Massart策略）和使用dencmp压缩信号 (wavelet,wdcbm(),Birgé-Massart strategy，dencmp())

something about phisics

说明：  人脸识别代码：图像工程中经常用到的一个实用算法。这里是matlab的实现。(Face recognition code: Image Engineering frequently used for a practical algorithm. Here is the realization of matlab.)

BP—遗传算法神经网络模型，matlab 源程序。(BP-genetic algorithm neural network model, matlab source code.)