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Matlab 数学方法介绍 基本的入门教程(Mathematical Methods Matlab basic Tutorial)

A library for DW-MRI Processing, DTI Estimation, Higher-Order Tensor analysis & Visualization ToolBox

calculate the gradient of an image

代码主要计算Daubechies紧支集滤波器系数L0_d和H1_d,然后采用这两个系数对信号进行小波分解(The main calculation code compactly supported Daubechies filter coefficients L0_d and H1_d, then the use of these two coefficients of wavelet decomposition signals)

说明：  实现HDB3编码，HDB3码是AMI码的一种改进型，其目的是为保持AMI码的优点而克服其缺点，使连“0”个数不超过3个。(Achieve HDB3 encoding, HDB3 code is a modified AMI code, its purpose is to maintain the benefits of AMI code to overcome its shortcomings, so that even the &quot 0&quot the number of not more than 3.)

数字图像处理MATLAB版的中文版电子书资料，包含数字图像处理的各个模块。(Chinese version of book information of digital image processing MATLAB version of each module, including digital image processing.)

本子程序包含5个子程序，其主要功能是： （1） 子程序CXCY（E，L，IE，JE）的功能 用于计算各单元的杆件的长度及在结构坐标系中的倾角α的三角函数cosα、sinα。 （2） 子程序ELEA（E，L，IE，JE，A）的功能 用于计算结构坐标系下各单元刚度矩阵中的刚度系数。 （3） 子程序TOTAL（E，LNODE，KE，KZ）的功能 用于形成半带宽的结构原始刚度矩阵。 （4） 子程序FIFX（NP，FXI，FXJ，FYI，FYJ，MMI，MMJ，WL，IE，JE）的功能 它是用来计算各单元的等效节点荷载。 （5） 子程序STIFF（E，KE）的功能 (Book program consists of five sub-programs, and its main functions are: (1) subroutine CXCY (E, L, IE, JE) function The unit used to calculate the length of the bar and in the structure coordinates of the angle α of the trigonometric functions cosα, sinα. (2) subroutine ELEA (E, L, IE, JE, A) function Coordinate system used to calculate the structure of the element stiffness matrix stiffness. (3) subroutine TOTAL (E, LNODE, KE, KZ) function Used to form the structure of semi-bandwidth of the original stiffness matrix. (4) subroutine FIFX (NP, FXI, FXJ, FYI, FYJ, MMI, MMJ, WL, IE, JE) function It is used to calculate the equivalent nodal load of each unit. (5) subroutine STIFF (E, KE) function )

用于求多多数据的均值和方差，希望对大家有用(Seek more data for the mean and variance, in the hope that useful)

this code is for fingerprint thinning

CRC码生成器和卷积码的仿真程序。其中CRC码可以自定义生成多相式或字符串；卷积码可以自定义约束长度和码长。(CRC code generator and the simulation program convolutional codes. Which the CRC code can customize the generation of multi-phase or string convolutional codes can customize the constraint length and code length.)