siftDemoV4

亲自测试 完全可以运行且有效，求瞬时频率，各个版本的matlab 都ok(Test yourself Can be run completely and effectively)

说明：  利用图象边缘特征的基于豪思道夫距离的景象匹配算法，匹配速度要比基于灰度的算法高好几个数量级(use of the images on the edge of Ho Sze-Astoria distance from the scene matching algorithm, speed matching gray than the algorithm based on several high-volume)

文章介绍了一种基于拉普拉斯——高斯模型的语音端点检测算法！(This paper introduces a Laplace-based- voice endpoint detection algorithm Gaussian model!)

Doris整个工程文件，包括利用Doris进行影像配准，干涉图生成，DEM生成，是对SAR影像干涉处理的绝佳代码(Doris whole project documents, including the use of Doris for image registration, interferogram generation, DEM generation, is an excellent SAR image processing code for intervention)

说明：  MATLAB下的人脸定位程序，程序小巧易懂，适合初学者研究进而演化出识别率更好的程序(Under MATLAB Face Locator, the program small and easy to understand, suitable for beginners through research programs evolve better recognition rate)

取阈值常用的方法有：双峰法、迭代法、大津法（OTS(threshold for commonly used methods : bimodal, iteration, Tianjin (OTS. )

基于矢量匹配法的快速实现程序，工程中较常用(Vector-based matching method for the rapid realization process, more commonly used engineering)

说明：  该代码能实现图像缩放功能，简单，容易理解(The code to achieve the image zoom feature, simple, easy to understand)

深度学习的Toolbox,使用mnist_uint8手写字数据库，适合初学者使用。(Deeplearning of the Toolbox, use mnist_uint8 handwritten word , for beginners.)

改进的有效边表算法，来自计算机图形学的简单代码(Improved active edge table algorithm, a simple code from the computer graphics)