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使用基于PCA+KNN算法实现的人脸识别，本算法的优点在于使用的是基于2DPCA的方法，计算时间更短，效率更高。(PCA+ KNN-based face recognition algorithm, the advantage of this algorithm is based on the use of 2DPCA method in calculating the time is even shorter, more efficient.)

说明：  matlab实现图像灰度变换，感受各种不同的灰度变换方法对最终图像效果的影响。(Matlab Gray Image Transform, different feelings Gray transform the ultimate effect of images.)

检测压力表的指针的角度信息，使用Hough变换的方法，去噪能力强。(Pressure gauge pointer is detected angle information, the use of Hough transform method, denoising ability.)

基于相位和Lucas Kanade方法的光流计算matlab源程序。(Based on the phase and Lucas Kanade optical flow calculation methods matlab source.)

基于样本的纹理合成加速方法，MRF，基于Li-Yi Wei的论文。(Acceleration method based on texture synthesis samples, MRF, based on Li-Yi Wei of paper.)

图像的腐蚀函数，非常有用，欢迎大家下载，一块进步(Corrosion function of the image, useful, and welcome to download, a progress)

平稳移不变小波变换，及图像去噪应用，PSNR, SSIM图像质量评估(stationary wavelet for image denoising)

几种图像增强的方法，有双直方图均衡，函数均衡等几种方法(several image enhancement methods, a double histogram equalization, function balance methods)

两个l1准则下的噪声干扰信号压缩感知重构举例，两个例子的稀疏矩阵均为DCT矩阵，而观测矩阵分别采用单位阵和随机矩阵，有详细的步骤和使用方法，适用于初步的学习压缩感知方法。(This programme supply two examples by Compressed sensing with l1 norm. The sparse matrix of two examples are all DCT matrix and the obsever matrix are unit matrix and random matrix respectively. We give the detailed usage and steps for the programme which is useful to the beginner.)

说明：  利用MATLAB对图像进行文件夹中图片进行批量增广(MATLAB is used to enlarge the images in the folder)