beijingchafenfa

pca特征提取子程序，毕设用的，算法优化非常好，几乎没有循环，相当节省时间，堪称经典，运行绝对正确！！(pca feature extraction subroutine, used to complete set up, very good algorithm, almost no circulation, saving considerable time, classic, run absolutely right! !)

这是一个用C实现7-bit的编码和解码的算法 非常有效 经过本人验证的,可用()

说明：  用小波变换对图像进行三级分解及求出各个子带系数(Using wavelet transform image decomposition and find three different sub-band coefficients)

JPEG2000自己编写的代码，与标准版有所不同，里面有详细注释，可以运行(Own code JPEG2000 Standard Edition is different, there are detailed notes, you can run)

说明：  图像加密后期测试的程序，用来评价加密图像的质量好坏，可用于图像加密方面(mage encryption late test procedures, used to evaluate the quality of encrypted images, can be used for image encryption)

说明：  基于matlab的指纹识别源码 包括预处理、特征点提取和特征点匹配(Fingerprint recognition source code based on MATLAB includes preprocessing, feature extraction and feature matching)

图像的相关系数是衡量两幅图像的相关程度的，本代码直接通过选定区域计算出相关系数！(image correlation coefficient is a measure of two images of the code directly through selected regional correlation coefficient calculated!)

说明：  能够实现对一幅图像的最近邻、双线性、双三次三种插值(Can realize the nearest neighbor, bilinear and bicubic interpolation of an image)

说明：  频域滤波器器的一些相关实验和滤波器的实现（包括理想低通，Butterworth低通，高斯低通，理想高通，Butterworth高通，高斯高通滤波器）(Some related experiments of frequency-domain filter and Realization of filter (including ideal low-pass, Butterworth low-pass, Gauss low-pass, ideal high pass, Butterworth high pass, Gauss high pass filter))

MATLAB实现基于互相关的亚像素级图像匹配/配准源代码Free Source Code for Efficient subpixel image registration by cross-correlation(MATLAB-based cross-correlation of sub-pixel image matching/registration Source Code Free Source Code for Efficient subpixel image registration by cross-correlation)