k-means

It is related to image processing

采用M语言编写的图像处理工具箱，内容丰富，设计了WINDOWS下的界面操作，对读者十分方便(M language using the image processing toolbox, rich in content and design of the interface under WINDOWS operation is very convenient for readers)

matlab code for Toolbox Wavelets

数字信号处理的Matlab实现的随书光盘，有时谱分析、小波变化、地震观测系统仿真与地面运动恢复等几个数字信号前沿课题，有实用价值(Digital signal processing with Matlab realized the book CD-ROM, and sometimes spectral analysis, wavelet changes in observing system simulation of earthquake ground motion and the restoration of several cutting-edge digital signal subjects have practical value)

均匀量化和非均匀量化在性能上存在着显著的差异，这种差异可以用信号通过量化器后的量躁比来反映出来。本程序用曲线表示了理论和实际两个方面下两种量化的量躁比。从而可观察他们的性能上的差别。(There are significant differences with the function between Uniform quantization and non-uniform quantization ,which can be quantified by SNR from the quantizer.This program use the curves to denote the SNR of theory and practical signal.Then we can observe the performance of the differences.)

使用pid方法控制单级倒立摆，解压后把两个文件放在同一个文件夹里双击nn_pid.m就行了(Pid way to control the use of single-stage inverted pendulum, after extracting the two files in one folder double-click on the list nn_pid.m)

Generate a 3D point plot of L=(x,y,z) using the values in the vector c to determine the color of each point. If c is empty, then z (column 3 of L) is used to color the plot. The data points are sorted so that plot3 is only called once for each group of points that map to the same color. The upper and lower limits of the color range (and the z axis) can be defined with crange. This is useful for creating a series of plots with the same coloring. The colormap (but not the colorbar) is flipped upside down if crange is given as [max min] instead of [min max]. The figure handle is returned if an output argument is given.

信号处理中波束形成时各种加权矩阵，包括长球函数权值和Kaiser加权(Beamforming signal processing for the various weighting matrix, including the prolate spheroidal functions and Kaiser weighting function)

针对二值图像的广泛应用，嵌入鲁棒性水印，测试其抵抗结合攻击的能力。(value against the wider use of images, embedded watermark robustness testing their resistance combination attacks.)

小波谱分析mallat算法经典程序，用的也是一维信号(small spectral analysis algorithm Mallat classic procedures, as well as the one-dimensional signal)