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在MATLAB环境下，以上代码通过编译。P0311：利用巴特沃斯（Butterworth）低通滤波器对受噪声干扰的图像进行平滑处理 P0312：利用巴特沃斯（Butterworth）高通滤波器对图像进行锐化处理(In the MATLAB environment, the above code through the compiler. P0311: the use of Butterworth (Butterworth) low pass filter on the image noise by smoothing treatment P0312: the use of Butterworth (Butterworth) high-pass filter for sharpening images treatment)

说明：  用matlab编写的强跟踪滤波器设计源码 用matlab编写的强跟踪滤波器设计源码(the source code of strong tracking filter based on matlab)

thesis for grad university

三电平同相层叠PWM方法谐波频谱分析及滤波器设计(Cascade three-level PWM method compared with the harmonic spectrum analysis and filter design)

一个实例搞定MATLAB界面编程实现图像的二值化功能(An instance with the MATLAB interface programming achieve the function of image binarization )

Matlab PCA主成分分析 一个比较好的matlab代码，非常有用(Matlab PCA PCA matlab code is a relatively good, very useful)

求波形的峰值，可以求出一组数据中的峰值，并且数据的峰值可以有很多个。(Seeking the peak of a waveform, can be calculated in a set of data in the peak, and the data of the peak there can be many。)

a functio that change binary codes to intergers

it shows a method on how to place an image in matlab and use it

ch9例题04_龙格库塔电子运动轨迹 matlab 程序(ch9 Examples 04_ Runge- Kutta electronic trajectory Matlab procedures)