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用Canny算子检测图像的边缘 P0404：图像的阈值分割 P0405：用水线阈值法分割图像 P0406：对矩阵进行四叉树分解 P0407：将图像分为文字和非文字的两个类别 P0408：形态学梯度检测二值图像的边缘 P0409：形态学实例——从PCB图像中删除所有电流线，仅保留芯片对象(with Canny operator to detect the edges in the image P0404 : image thresholding segmentation P0405 : water line threshold method image segmentation P0406 : matrix Quadtree P0407 : images into text and non-text of the two categories P0408 : morphological gradient detection Binary Image Edge P0409 : morphology example-- Images from the PCB to delete all current lines, retaining only chip targets)

数值分析中基于Matlab环境下的Gauss全主元消去法的源代码(Numerical analysis in Matlab environment based on principal component elimination method Gauss full source code)

code for jack knifing

流形学习（Manifold Learning）的一种算法：拉普拉斯特征映射（LE）(An algorithm of Manifold Learning: Laplacian Feature Mapping (LE))

说明：  使用Matlab实现的一个图像Warping的算法，通过指定需要进行Warping的点以及操作之后的位置，对图片进行扭曲变形，是图形图像处理的经典算法。(Implemented using the Matlab image Warping algorithm, Warping by specifying the need for operation after the point and the location of the distortion of the picture is the classic graphic image processing algorithms.)

基于matlab的数字水印防伪技术，其中能够实现数字水印嵌入与提取(Based on the matlab digital watermark anti-counterfeiting technology, which can realize the digital watermark embedding and extraction)

说明：  Canny算子 Canny 算子是一种比较新的边缘检测算子，具有很好的边缘检测性能，得到了越来越广泛的应用。(Canny operator Canny operator is a relatively new edge detection operator, has good edge detection performance has been more widely used.)

利用FLICM算法进行图像聚类的matlab程序代码，相对于FCM（模糊C均值聚类）算法具有较强的抗噪能力。(FLICM image clustering algorithm matlab code, with respect to FCM algorithm (Fuzzy C-means Clustering) it has a strong anti-noise ability.)

Contourlet transform and feature extraction

说明：  利用matlab提取出频域和时域信号的29个特征，主运行文件feature_extraction，fre_statistical_compute和time_statistical_compute分别提取频域和时域的特征，生成的29个特征保存在生成的feature矩阵中。(Using MATLAB to extract 29 features of frequency-domain and time-domain signals, the main running files feature extraction, frequency-domain and time-domain features are extracted respectively, and the 29 features are saved in the generated feature matrix.)