threelevel

Intuitive manipulation of a figure using key and mouse gestures(Especially useful for 3d renderings, this widget allows the user to intuitively rotate, pan and zoom any axes within a figure using key presses and mouse gestures. Additionally, press q to quit the widget, r (or double-click) to reset the current axes and escape to close the figure.)

inverse 2-D Laplace transform

一个很好的matlab数字特征提取源码，希望对大家有用(Featureextraction)

给出了分形计算的源代码的matlab程序，可以迅速帮助大家进行分形的分析与计算，参数容易设置 (Gives the fractal calculation matlab source code program that can quickly help you to fractal analysis and calculation of parameters easy to set)

the programme for the transform between decimal and binary

matlab实现的无线信道仿真，具体方法为正弦波叠加法的MED(matlab realize the wireless channel simulation, the specific method for the sine wave superposition method of MED)

傅里叶级数变化，进行信号的分析预处理，同时完成基本的傅里叶变化，对信号处理有很多作用(Fourier series change, the analysis of the signal preprocessing, while completing the basic Fourier transform, there are many effects on signal processing)

直方图均衡：原始图的直方图变换为均匀分布的形式，这样就增加了象素灰度值的动态范围从而达到增强对比度的效果 中值滤波：中值滤波属于非线性平滑滤波器，它可以消除噪声又能保护图象的细节(histogram equalization : the original plan to transform the histogram in the form of uniform distribution. This will increase the value of the pixel gray areas so as to achieve dynamic contrast enhanced effect of filtering : Median filter is nonlinear smoothing filter, it can eliminate noise while preserving image details)

学习matlab很好的一本书，书中有详细的使用说明，很值得初学者看一看(This is a good book to Learn matlab .The book includes detailed instructions for us. It is a good choice for the peopel who learn matlab for the first time.)

说明：  利用MATLAB语言，实现EMD分解，得到各个IMF分量，再重组降噪(Using MATLAB language, EMD decomposition is realized, IMF components are obtained, and then noise reduction is recombined)