nsct_toolbox

降低正交频分复用ofdm系统的峰值平均功率比的仿真(Reduce the Orthogonal Frequency Division Multiplexing OFDM system peak-average power ratio simulation)

运用pca算法降维，提取主要特征值，从而达到降维目的(Dimensionality reduction using pca algorithm, extract the main features of the value of)

快速ＤＣＴ变换的代码.利用c++实现DCT变换.(Fast DCT transform code. Use c++ to achieve DCT transform.)

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.)

sift详细编写,方向等参量，参数取舍详细(sift Detailed compilation of sift, direction and other parameters, detailed selection of parameters sift sift sift sift)

先用PCA降维，在利用支持向量机进行分类，这个分类是二分类，所以PCA的降维降到两维即可分类。(Firstly, PCA dimensionality reduction is used to conduct classification with support vector machine. This classification is binary classification, so the dimensionality reduction of PCA can be reduced to two dimensions for classification.)

说明：  可见光影像的密集匹配，很经典的算法，效果也非常理想(image matchingimage matching)

　找出图象的最佳阈值，并显示它的二值图．(find the best image threshold, and it shows the value of Figure 2.)

说明：  基于python语言的三种图像简单去噪算法(Three simple image denoising algorithms based on Python)

此程序是基于互相关的亚像素级图像匹配的代码，此种配准方法误差小，精度高。(This procedure is based on the cross-correlation of sub-pixel image matching of the code, such a registration method error and high accuracy.)