photometricStereo

these are matlab files for Mitra book

This package contains a collection of classes and functions, which allow to comfortably work with medical images and meshes. It provides a intuitive and transparent way of dealing with spacing, origin, image orientation, etc. The package includes functions for input-output with common image formats (mhd, gipl) and mesh formats (vtk, stl), and basic (although not necessarily simple) image processing operations such as image resample, image reslice and image transform.

gson2.2.2的3个jar包，需要的可以下载(gson2.2.2 of 3 jar package, need to be downloaded)

harq in lte for channel coding in matlab to correct error in 4g

基于频率切片小波变换预处理，此方法适用于盲信号分离的预处理，方法有很多优点。(Based on the frequency slice wavelet transform preconditioning, this method is suitable for the pretreatment of blind signal separation, the method has many advantages.)

递推最小二乘算法，用matlab实现递推最小二乘参数辨识(recursive least square)

音频信号的处理:导入一个时长若干秒的音频信号，得到该音频文件的频率fs和幅度A，显示信号的时域图和频谱图，加入频率为fs/3，幅度为2A的噪声，分析、显示并播放有噪声时时域图和频谱图，以及滤除噪声后的信号的时域图和频谱图。(Audio signal processing: Import a duration of several seconds of the audio signal to obtain a frequency fs, and the amplitude A of the audio file, the time-domain diagram of a display signal, and frequency spectrum, the frequency fs/3, amplitude noise 2A, analysis , display and playback of the noise always domain diagram and frequency spectrum, and the signal after the noise filtering time-domain diagram and spectrum FIG.)

说明：  直线偏移代码，已知多边形顶点坐标，可以将多边形各边沿其法线方向平移距离然后得到新的多边形顶点。(Linear shift code, known polygon vertex coordinates, can be the edge of the polygon shift its normal direction and then get a new polygon from the vertex.)

光伏MPPT最大功率跟踪仿真模型，很有参考价值的算法(Photovoltaic maximum power tracking of MPPT simulation model, the algorithm of great reference value)

retinex阴影去除 non linear processing on the image by the commercial camera used Sensors are not Dirac Delta Functions but narrow band Approximate invariant angle is obtained by the entropy minimization mehtod. Exact angle can only be found by camera calibration method(retinex shadow removing，non linear processing on the image by the commercial camera used Sensors are not Dirac Delta Functions but narrow band Approximate invariant angle is obtained by the entropy minimization mehtod. Exact angle can only be found by camera calibration method)