Adding_Noise_and_Image_Restoration

this is a matlab code for clustering.it s name is SOM

tutorial on fuzzy logic

Genetic Algorithm for linear function

nginx源码分析，全面易懂。正在研究nginx的朋友可以看看。(nginx source code analysis, comprehensive and easy to understand.Studying nginx friends can see.)

对任意大小的灰度图像进行zig-zag变换和反变化，或者是对DCT之后的图像进行zig-zag变换，确定其中频信息。(Any size of gray-scale images in zig-zag transform and anti-change, or is the DCT of the image after the zig-zag transform, to determine which frequency information.)

本程序为一个RLS自适应算法实现的MATLAB程序，此程序详细介绍了RLS算法的实现过程(This program is a RLS adaptive algorithm in the MATLAB program, this program introduces the process of RLS Algorithm)

Fitness function that help users to use that in ga applications.

根据)EF 特性中的对比度敏感度， 即空间频率特性曲线，对图像进行二维多级小波分解，由分解后的各小波分量，提取各频段相应的亮 度、清晰度和相关度指标；然后将这三个指标的几何平均与频段加权系数的内积做算术平均，以此作 为图像质量的综合评价指标(According to) EF characteristic of contrast sensitivity, that is spatial frequency characteristic curve, the image is two-dimensional multi-level wavelet decomposition, the decomposition of the wavelet component, extract the frequency band corresponding brightness, clarity and relevance of indicators then the geometric mean of these three indices and the band doing weighted coefficient of the arithmetic mean within the product as a comprehensive evaluation of image quality index)

用matlab实现图象直方图的绘制，有四个程序，很适合初学者使用(using Matlab image histogram shows that there are four procedures that are very suitable for beginners)

vad（语音活动检测）的matlab代码，采用频域的方法计算信噪比。(vad (voice activity detection) Matlab code, using frequency-domain approach to calculate the signal-to-noise ratio.)