pi_method1

Gradient information serves several purposes. It can relate the structure of objects in an image, identify features of interest for recognition/classification directly or provide the basis of further processing for various computer vision tasks. For example, "edges," noted by regions of high gradient magnitude, are central to the task of identifying defects in circuitry. A sample "edge-detected" image using the Image Processing Toolbox for MATLAB is shown where locations marked by white are those points that are indicative of high gradient magnitude, which can also be described as regions of high pixel contrast.

此文重点介绍一下matlab 的相关语法运用，及一些符号的意义(This article will introduce how to use matlab syntax related, and some symbolic significance)

利用此程序,可以计算出两离散序列的线性卷积和循环卷积。(calculating the linear_convolution and circular_convolution of two scattered data.)

说明：  这是关于统计方法的建模，适合于初学者。希望对大家有帮助。(Modeling of statistical methods)

生成以t0为中心的双指数调幅信号 y=amexpo2s(N,t0),N产生信号的点数，t0时间中心，y返回产生的信号．(generation to t0 for the AM signal-index amexpo2s y = (N, t0). N signal from the score, time t0, y return to the signal.)

用matlab编写的关于流体计算和传热的几个程序(Fluid flow calculation and heat transfer program written by MATLAB)

说明：  混沌 函数迭代与一维动力系统 周期3导致混沌 混沌 函数迭代与一维动力系统 周期3导致混沌(Chaos Function Iteration and 3 one-dimensional dynamic systems lead to chaos and a chaotic function iteration cycle of three-dimensional dynamical systems lead to chaos)

高斯曲线拟合，利用非线性曲线拟合函数inline实现对一组数的高斯拟合(Gaussian curve fitting, nonlinear curve fitting function inline Gaussian fitting of a set of numbers)

无约束多维极值问题的解决方法程序，matlab程序，具有很强的鲁棒性(Unconstrained multi-dimensional extremal problem solution procedures, matlab program, which has strong robustness)

使用matlab分析传统光学系统加入三次相位掩模板之后的光学传递函数分析(Analysis using conventional optical systems matlab cubic phase mask after adding optical transfer function analysis)