read_txt

usps数据库为标准手写数据库，此为mat数据文件，含训练集和测试(USPS database is a standard handwritten database, which is a mat data file, including training set and test)

denary三角剖分算法源码，用于离散点成面，自动构建面的高级算法，该算法非常难得，希望你们有所启发。(denary triangulation algorithm source code for the discrete points into face, the face automatically build senior algorithm, which is very rare that you have inspired.)

说明：  冈萨雷斯matlab图像处理中的代码，现成的函数不同自编(Code in image processing of Gonzalez matlab)

存取图像字段 数字图像的存取 将图像转化为数字信息(Access image field )

matlab彩色图像任意旋转的函数 黑白图像旋转后需要补点(matlab color images of arbitrary spin rotation function of black and white images make up points after)

说明：  数字图像处理，图像亮度的增减，获得理想的结果，图像增强处理(Digital image processing, image brightness increases and decreases, to obtain the desired results, image enhancement processing)

说明：  一个简单的小程序，主要是转换测量卡尔曼滤波（CMKF）在三维空间上的matlab实现，并给出了xyz三个方向上的滤波误差(A simple program is mainly the realization of CMKF in three-dimensional space by MATLAB, and the filtering errors in three directions of XYZ are given)

RGB颜色转换源码程序，根据RDB颜色组成结构，使用位运算实现RGB颜色转换。(RGB color conversion source program, according to RDB color composition structure, using bit operations to achieve the RGB color conversion.)

衍射光学光束整形元件设计 目标：在透镜后焦面上实现图形的光强分布 实现： 1、波长、衍射光学元件口径、形状、入射波前、二维目标分布及尺寸等都可自行设定； 2、对相位进行8台阶量化，重新计算； 3、更换输出面的采样间隔，重新计算。(Design of Diffraction Optical Beam Shaping Element Objective: To realize the intensity distribution of the pattern on the focal plane behind the lens. Realization: 1. Wavelength, aperture, shape, incident wavefront, two-dimensional target distribution and size of diffractive optical elements can be set by themselves. 2. The phase is quantized by 8 steps and recalculated. 3. Replace the sampling interval of the output surface and recalculate it.)

实图像的纹理特征提取，提取出的效果比较好，希望能够绑到有用的同学和人员(Real image texture feature extraction, the effect is better, hoping to be tied to useful classmates and personnel.)