pearson_correlation_coefficient

calculate MSE and PSNR

用radon变换提取图像的不变形特征，将图像转回原有角度，用于后续识别(Radon transform to extract images with no deformation, the image back to the original point of view for subsequent identification)

《数字图像处理(MATLAB版)》是把图像处理基础理论论述与软件实践方法相结合的第一本书，它集成了冈萨雷斯和伍兹所著的《数字图像处理》一书中的重要内容和MathWorks公司的图像处理工具箱。本书的特色在于它重点强调了怎样通过开发新代码来增强这些软件工具。本书在介绍MATLAB编程基础知识之后，讲述了图像处理的主要内容，具体包括亮度变换、线性和非线性空间滤波、频率域滤波、图像复原与配准、彩色图像处理、小波、图像数据压缩、形态学图像处理、图像分割、区域和边界表示与描述以及对象识别等。(Digital image processing (the MATLAB Version) " is the first book of the combination exposition of the basic theory of image processing software practices, integrated Gonzalez and Woods book" Digital Image Processing " book of important content and MathWorks Image Processing Toolbox. The features of this book lies in its emphasis on how to develop new code to enhance these software tools. Introducing MATLAB programming basics, the book tells the story of the main contents of the image processing, including brightness transform, linear and nonlinear spatial filtering, frequency domain filtering, image restoration and registration, color image processing, wavelets, image data compression, morphological image processing, image segmentation, regions and boundary representation and description, and object recognition.)

purebasic的入门书籍，虽然用purebasic的人很少，甚至分类都没他。不过这个语言还是不错的。(purebasic entry books, although very few people with purebasic, or even no his classification. However, the language is good.)

说明：  常用数学建模美赛数据来源网站，可以帮助大家更快查找数据(base on the matlab compitation that we can study)

表面张力 规则是： （1）对周围的 8 近邻的元胞以及自身的状态求和 （2）如果总和< 4 或= 5 ，下一时刻的状态= 0 否则状态= 1 (Surface Tension rules are: (1) around the 8 cell and its neighbor' s state sum (2) If the sum of < 4 or = 5, the next time state = 0 else status = 1)

bch编码译码程序、很好的东西只得收藏。。。。。。。。(BCH coding decoding process........)

说明：  适用于初学者接触的GA算法，是其核心思想的简单实现(GA algorithm suitable for beginners is a simple implementation of its core idea)

心电数据的匹配，hilbert变换用于心电的检测和分析 (ECG data matching, hilbert transform ECG for the detection and analysis)

mod double band porteuse