package_emd

这是一个非局部均值算法实现工具和相关实验数据，主要用来实现图像增强和降噪应用(This is a non-local means algorithm to achieve the tools and related experimental data, mainly used for image enhancement and noise reduction application)

说明：  风险投资模型求解，用此程序求解出投资风险组合。(Venture capital model to solve, using this procedure for solving a portfolio of investment risks.)

说明：  使用matlab实现手写阿拉伯数字的识别。(Using matlab to achieve the recognition of handwritten Arabic numerals.)

说明：  在MATLAB环境下实现Huffman编码(In the MATLAB environment to achieve Huffman coding)

说明：  两个信号的DOA估计，用4阶累积量方法。(Two signal DOA estimation, using 4-order cumulant method.)

MATLAB 信号处理 带通、高通、低通滤波 FFT变换 显示并返回原始波形的FFT结果、滤波后的波形及滤波后的FFT结果(MATLAB signal processing band-pass, high pass, low pass filter FFT of the waveform display and return to the original results of the FFT, the filtered waveform and the filtered results of the FFT)

its important for academic issues

手写数字识别 有GUI界面 能识别单个数字 识别率还是很高的(Handwritten numeral recognition with GUI interface to identify a single digit recognition rate is still very high)

zero是matlab编程中必须用到的语言 此文试用于matlab新手进行基本zero的了解，其实就是零矩阵(zero used for matlab newer)

FIR滤波器的设计代码，这是最后一部分，所有的都已上传(FIR filter design code, which is the last part, all have been uploaded)