Retinex

提取图像的SURF特征点。包含两个例程，分别为提取到的特征点与特征点匹配(Extract SURF feature points from the image)

说明：  一个简单的画图程序，提供基本图元点、线、面，图元填充、裁剪的操作(Simple Draw)

基于颜色衰减先验的图像去雾算法源码,作者是Zhu，大家可以作为论文中的比较算法(the matlab code of image dehazing based on color attenuation prior)

说明：  BP神经网络做曲线拟合，BP网络应用于曲线二次拟合(BP neural network to do curve fitting, BP network used in curve fitting quadratic)

说明：  标记分水岭分割算法，文档有讲解有实例，对学习者很有帮助。(Mark a watershed segmentation algorithm, the document has to explain with examples, helpful to learners.)

进行纯净信号和加噪信号的时频域显示，及其包络图显示，并计算加噪信号的信噪比、互相关系数、峭度值，对信号进行离散余弦变换。(The time-frequency domain display of pure signal and noise-added signal and its envelope diagram display are carried out, and the signal-to-noise ratio, correlation coefficient and kurtosis value of noise-added signal are calculated.Making Discrete CoSine transform for signal)

说明：  图像融合算法，高通滤波法、IHS法、PCA主成分分析、小波融合、小波和IHS结合的融合方法(Image fusion algorithm, high pass filter method, IHS method, PCA principal component analysis, wavelet fusion, wavelet and IHS fusion method)

matlab使用regionprops求面积，找到连通域(Matlab uses regionprops to calculate area and find connected region)

Image feature extraccting using sift

车型识别,根据surf算法特征匹配实现大型车、小型车的识别。(automotive style recognition)