nihecizhihuixian

为了弥补传统中值滤波器在进行图像降噪处理中的不足,在图像降噪技术中应用了自适应中值滤波器。文中重点介绍了自适应中值滤波器的工作原理并在Matlab平台上进行了仿真试验，与传统中值滤波器进行了比较,计算机仿真结果表明在对密度较大的椒盐噪声进行滤波时,自适应中值滤波较传统中值滤波具有较大的优越性。(To remedy disadvantage of traditional median filtering algorithms in image denoise ,adaptive median filter is introduced and applied to image denoise. Key technology in actual uses is analyzed and is implemented in Matlab platform.Compared with traditional median filter , the computer simulation results show that when used to filter image with the higher level of noise , adaptive median filter is preferable to traditional median filter.)

一个灰色模型的matlab实现，包含GM(1,1),GM(1,N),GM(2,1)和vershlust模型的系数计算，数值预报和误差分析以及图形输出(A gray model matlab realize, including GM (1,1), GM (1, N), GM (2,1) model and vershlust coefficient calculation, numerical weather prediction and error analysis, and graphical output)

该函数使用快速傅里叶变换FFT计算序列平均周期(This function uses the fast Fourier transform (FFT) calculation of the average cycle sequence)

信号处理中的积分运算，以位移、速度和加速度为例，适用于matlab。(Signal processing integration operation of displacement, velocity and acceleration, for example, apply to matlab.)

matlab 上用的视频输入输出函数比mmread要好！(use matlab video input and output function mmread better than that!)

改进的mallat算法，消除了频率的混叠，可以用于提取故障频率(Improved mallat algorithm, eliminating the frequency aliasing, the frequency can be used to extract the fault)

说明：  使用环机制实现网格三角分割的简单m文件。(A simple m file for the triangle mesh subdivision using the Loop s scheme. The zip file includes four examples of subdivision. )

四级小波包分解的源程序，希望对大家有所帮助，怎么说也是呕心沥血的结果啊(matlab)

matlab程序，工具箱，有各种函数库，请大家分享(procedures Matlab toolbox, various functions, please share)

HHT PPT for Hilbert Huang Transform EMD