math3

A filter bank structure that can deal effectively with piecewise smooth images with smooth contours, was proposed by Minh N Do and Martin Vetterli. The resulting image expansion is a directional multiresolution analysis framework composed of contour segments, and thus is named contourlet. This will overcome the challenges of wavelet and curvelet transform. Contourlet transform is a double filter bank structure. It is implemented by the pyramidal directional filter bank (PDFB) which decomposes images into directional subbands at multiple scales. In terms of structure the contourlet transform is a cascade of a Laplacian Pyramid and a directional filter bank. In essence, it first use a wavelet-like transform for edge detection, and then a local directional transform for contour segment detection. The contourlet transform provides a sparse representation for two-dimensional piecewise smooth signals that resemble images.

该程序采用MATLAB程序编写，为.m格式的文件，可以直接在MATLAB中运行，内容关于数字图形分析与处理(image analysis)

说明：  8PSK的源程序 matlab程序示例(8PSK source of the examples Matlab)

leach-c matlab source code

digital signal processing using MATLAB & WAVELETS PROJECTS AND chapter wise matlab code,figures.

实测一组机械系统的振动信号，记录采样频率、采样点数，估计该组振动信号的均值、均方值、方差、自相关函数和功率谱，其中功率谱估计对比频率平滑与分段平滑的效率，针对分段平滑、分析不同平滑次数对功率谱估计的影响(Found a mechanical vibration signal system, the recording sampling frequency, sampling points, the estimated mean the set of vibration signals mean square value, variance, autocorrelation function and power spectrum, wherein the power spectrum estimation and comparison of frequency smoothing piecewise smooth efficiency for piecewise smooth, analyze the impact of different smooth frequency power spectrum estimation)

说明：  《精通MTLAB最优化计算》第7章 无约束多维极值问题 源码(&quot The most proficient MTLAB Optimization&quot Chapter 7 source for unconstrained multi-dimensional extremum problems)

This is remote sensing image enhancement project. Which deals with image enhanement and noise removal from rsi images. It also uses different edge detection techniques for image enhancement

aynchronous machine torq vizualisation

matlab 光伏电池模块 （已经封装好） 用于仿真光伏电池的输出特性(PV model )