part4

很好的求解结构动力学方程的程序,很好用的哦(It is a very good matlab programme to solve eqationg )

流形学习是近年来机器学习及模式识别等领域的一个研究热点，其主要目标是去发现高维观察数据空间的低维光滑流形。自从2000年Roweis和Saul提出LLE算法、Tenenbaum等人提出Isomap算法，特别是Donoho等人发现Isomap算法能够准确发现人脸图像流形潜在的参数空间、张长水等人将LLE算法用于人脸识别并取得了较好的识别效果之后，基于流形学习的人脸识别研究引起了人们的广泛关注。(Manifold learning in recent years the field of machine learning and pattern recognition as a research focus, its main goal is to find high-dimensional data space observation of low-dimensional smooth manifold. Since 2000 LLE algorithm proposed by Roweis and Saul, Tenenbaum and others proposed Isomap algorithm, especially Donoho, who found that Isomap algorithm can find the potential face images of the parameter space manifold, and Chang-water will LLE algorithm for face recognition and to obtain a good recognition results, the manifold learning-based face recognition research has aroused extensive attention.)

说明：  利用图像分割来检测细胞，版本R2008B(Using image segmentation to detect the cell, version R2008B)

说明：  生物特征识别技术作为一种身份鉴别手段具有独特的优势。在生物特征识别系统中, 采集数据的预处 理是不可或缺的环节。以人脸识别为例, 介绍了一种在复杂背景的彩色图像中, 基于颜色和知识的生物特征预处理 方法。首先利用颜色信息从图像中分割出类肤色区域, 然后运用人脸几何特征和眼睛的提取定位人脸。仿真实验表 明, 该算法能较为准确地定位彩色图像中的正面或小角度偏转的人脸, 具有较快的运算速度。(Biometrics as an identification tool has a unique advantage. In biometric systems, collect data preprocessing is an indispensable link. To face recognition, for example, presents a complex background in color images based on color and knowledge of the biological characteristics of pretreatment. The first to use color information to separate out the classes from the image color region, and then use face extraction of geometrical features and eye positioning face. Simulation results show that the algorithm can be more accurately locate color images in a positive or small-angle deflection of the face, with a faster computational speed.)

这是解调中重要的DDS恢复部分，做成子函数形式，具体的输入输出变量已经表明，请按介绍使用。谢谢站长(This is the most important part, DDS, causing Functions form specific input and output variables have shown, click on the use. Thank you, Captain! !)

随机森林的训练、随机森林的预测以及结果的展现，全部代码亲测(Random forest training, random forest prediction and result display, all code affinity test.)

modulation and demodulation 16-QAM

发动机万有特性曲线的画法以及代码MATLAB(Engine universal characteristic curve drawing method and MATLAB code)

fuzzy control rule design

adding noise and removeing point processing drawing histogram histogram equalization histogram matching spatial filtering