Numerical-Solution-PDE-

skin detection by back projection and using a .jpg file consist of skin model and detect skin from image that have an similar texture compare to model

射线追踪的仿真小程序最多可以模拟三次反射,可以出仿真图(it is a program of raytracing and simulation figure could be made)

信号包络谱计算 (signal envelope sperctrum calculation )

This is a compact code for reliability analysis based on the stochastic response surface method (SRSM) which first uses the univariate dimension reduction (UDR) to decompose the multidimensional performance function into multiple one-dimensional univariate functions and then employes the cubic spine interpolation to approximate the one-dimensional univariate functions.. One mathematical example is solved for demonstration purpose.

说明：   教学材料包含全套的文件,可以直接用于教学 例题全部代码包含本书全部例题的MATLAB语句 开发函数和使用资源包含作者为本书开发的全套函数. (Teaching materials include a full set of files that can be directly used for teaching examples include all the code book, all examples of MATLAB statements development function and use of resources developed for this book contains a full set of functions.)

matlab练习程序（最大类间方差二值化图像）这里用的方法是《特征提取与图像处理》3.3.4里的。( matlab exercise program (Otsu binary image))

用simulic编写了生成信号 很详细很好用呢(singal simulic)

说明：  关于模糊仿人智能控制matlab的小论文，描述了整个的模糊过程。(Essay on matlab fuzzy humanoid intelligent control, describes the entire fuzzy process)

本程序为边界元的原程序，可用来求解2D位势问题，附数据文件(the procedures for the original boundary element procedures can be used to solve 2D Potential problems with data files)

说明：  程序使用说明： 1、软件应用平台：Matlab6.5或更高； 2、打开方法： 将文件所在目录设为工作目录，然后打开wavlet.fig,在noise提示框下输入噪声强度，在0-0.1之间（不能为零）。 然后点process按钮，就会显示实验结果，包括原图像，加噪图像，去噪图像的对比以及当前的psnr值。 wavlet.m是程序文件。 程序内容写在在程序的注释里。 阈值的更改没有实现可视化，在源程序中可以改。(Procedure for use: 1, Software Platform: Matlab6.5 or higher 2, open the way: the file directory set the working directory, then open the wavlet.fig, the noise boxes, enter the noise level, in the 0-0.1 between (not zero). Then process the button, it will show the experimental results, including the original image, noise image denoising image contrast and the current psnr value. wavlet.m is the program file. Program content in the program notes written inside. Threshold changes are not visualized in the source program can be changed.)