just-noticeable-difference

说明：  雷克子波，绘制地震道记录，可以自己设置参数绘制相应的地震道记录(Reick wavelet, drawing seismic trace records, can set its own parameters to draw corresponding seismic trace records.)

说明：   奇怪的分式 上小学的时候，小明经常自己发明新算法。一次，老师出的题目是： 1/4 乘以 8/5 小明居然把分子拼接在一起，分母拼接在一起，答案是：18/45 （参见图1.png） 老师刚想批评他，转念一想，这个答案凑巧也对啊，真是见鬼！ 对于分子、分母都是 1~9 中的一位数的情况，还有哪些算式可以这样计算呢？ 显然，交换分子分母后，例如：4/1 乘以 5/8 是满足要求的，这算做不同的算式。 但对于分子分母相同的情况，2/2 乘以 3/3 这样的类型太多了，不在计数之列!,四个四个数不同 请写出所有不同算式的个数（包括题中举例的）。 思路：循环遍历。 dfs c++(dfs c++)

很好用的svm工具箱，dagsvm对于图像分类效果非常好，分类精度很高，代码清洗简单。(Good use of SVM Toolbox, dagsvm for image classification effect is very good, very high classification accuracy, code cleaning easy.)

说明：  快速K均值聚类图像分割算法源代码，能很好的实现图像的分割处理(Fast K-means clustering algorithm for image segmentation source code, can achieve very good to deal with image segmentation)

基于人群分类的SEIR模型的仿真，得出模型中各参数(传播率，等)对谣言传播范围的影响(Simulation of SEIR model based on crowd classification)

60轨CAD断面图，严格按照国家标准作图，60轨CAD断面图(Cross-sectional drawing of 60-rail CAD)

基于Fisher线性判别基础学习器的集成分类器专门用于数字媒体的隐写分析，目前使用高维特征空间。目前，由于其良好的检测精度和较小的计算成本，它可能是设计监督分类器用于数字图像隐写分析的最常用方法。(The ensemble classifier, based on Fisher Linear Discriminant base learners, was introduced specifically for steganalysis of digital media, which currently uses high-dimensional feature spaces. Presently it is probably the most used method to design supervised classifier for steganalysis of digital images because of its good detection accuracy and small computational cost. It has been assumed by the community that the classifier implements a non-linear boundary through pooling binary decision of individual classifiers within the ensemble.)

图片的加法运算减法运算乘法运算除法运算和四则运算(Four Operations of Addition, Subtraction, Multiplication and Multiplication of Pictures)

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)

自己开发的一种点云降噪方法，可以去除物体主体之外的部分的点云数据（物体点云数据为三维扫描仪获得）(A point cloud noise reduction method developed by ourselves can remove part of the cloud data outside the main body of the object (object cloud data is obtained for a three-dimensional scanner))