yuzhifa

matlab的87个实例，基本上涵盖了matlab得许多操作函数和图像处理方法，对大家的学习很有帮助。(87 instances of matlab, matlab have basically covered many operations functions and image processing method, all very helpful.)

所给程序中，先给出一副原始图像，在其中添加椒盐噪声，然后用几种方法进行平滑滤波，包括邻域均值法，邻域中值滤波和K邻域均值滤波，其中的K邻域均值滤波所选掩膜为3*3，K值取5，图片选用board.ti。(Given program, the first is given an original image, in which the added salt & pepper noise, and then use several methods of smoothing, including the neighborhood average method, o-field value filtering and K neighborhood mean filter, where K o domain mean filter mask for the selected 3* 3, K value of taking five, picture selection board.ti.)

用前后向空间平滑法实现相干信源DOA估计(using the method of forward and backward spacial smoothing to realize coherent signal DOA)

三相有源滤波器建模，可以实现更好的滤波效果(Modeling of three phase active filter)

用来求解线性或者非线性数学方程 并在坐标系下观察其取值.(Used for solving linear or nonlinear mathematical equations and coordinate system to observe its value.)

HG DF FDHGD FDHG FDH RTYR YRYDTYT I UIUI RTU ETR DFH TYJHK GF J DTYRY4YRD R YTD YDR RT F

5层的MATLAB聚类分析的算法，输入需要进行分析的数据，点击运行即可得出聚类结果(MATLAB cluster analysis of 5 layer algorithm, input the need for analysis of the data, click Run to get the clustering results)

这是一个mathlab编写的音乐程序 通过他你可以生动的感受mathlab的神奇魅力！！(This is a progress of music.)

从曲线中检测到其峰值：先利用二次求导得到所有凸点，设置门限，去除过低的凸点，然后利用滑动窗的方法，在凸点中求得满足峰值要求的点(Detected from the curve to its peak: the first use of the second derivative method to get all the bumps, set the threshold too low to remove the bumps, and then use a sliding window, obtained in a bump to meet peak requirements of point)

说明：  无约束优化问题一维搜索的常用方法：黄金分割法（golden_section.m）、加步搜索法（plus_step_search.m）、牛顿法（newton.m）、抛物线法（parabola.m）(Unconstrained optimization problem of one-dimensional search of the commonly used methods: Golden Section (golden_section.m), plus step-by-step search method (plus_step_search.m), Newton (newton.m), parabola method (parabola.m))