evaluate

可将压缩的avi视频分为一帧一帧的图像。内含测试视频。使用时，需要分别建两个文件夹，分别存放彩色和灰度图像。(segment avi into frames)

zxb:提取wav波得语音声学特征MFCC，以及用praat提取wav波的基频。(zxb: extract acoustic features of voice wav wave was MFCC, and extracted with praat wav wave fundamental frequency.)

freehand drawing on figure

利用MATLAB中的GUI（图形用户界面），实现图像的读取，边缘检测，四叉树分解，直方图阈值分割，二值化差值的实现，并设计了退出按钮。(In MATLAB GUI (graphical user interface), to achieve image reading, edge detection, quad-tree decomposition, histogram thresholding, binary difference implementations and designed the Exit button.)

FFT 基2变换源程序，matlab测试与系统函数变换结果一致(Radix-2 FFT transform source code, matlab test results are consistent with the system function transformation)

this is a very good matlab code

用于信号处理的matlab小程序。傅里叶变换和傅里叶逆变换(fft or ifft)

auditry feture xtrction

模拟在住不同条件下长周期光纤光栅的传输谱，给出了各个不同条件下传输谱的变化(Simulation under different conditions in living long period fiber grating transmission spectrum, gives the transmission spectrum under different conditions, changes in)

This is a complete guide of the Partial Differential Equation Toolbox of Matlab