dianyun2DSM

用matlab写的图像离散余弦变换域的水印嵌入与提取以及攻击测试代码，稍加修改就可以移植到自己的程序中，很有用哦(Matlab write images using discrete cosine transform domain watermark embedding and extraction as well as attacks on the test code, slightly modified can be transplanted to their own program, very useful Oh)

Elementary Linear Algebra

EEG brain signal anlaysis codes. Extract event-related potential (ERP) compoents from brain signal. Estimate ERP waveforms, and the assoimated single-trial latencies and amplitudes. Estimate spectrum of on-going activities. Two algoithms, dVCA and AESO, are implemeneted. Could be useful for researchers and students in biomeical engineering.

说明：  从最基本的问题入手，循序渐进，逐渐过渡到较为复杂的数学问题、信号分析问题、力学问题和电 学问题的求解，将MATLAB的学习贯穿在解决不同领域实际问题的过程当中(Starting from the fundamental issue, step by step, gradually transition to more complex mathematical problems, signal issues, mechanical issues and electrical problem solving, learning through the MATLAB to solve practical problems in different areas of the process of)

calculate gauss into two vectors

等效结点力 　　单元刚度矩阵的坐标变换 　整体刚度矩阵 　　边界约束条件的处理 (Equivalent nodal force of element stiffness matrix of the overall stiffness of the coordinate transformation matrix to deal with boundary conditions)

蒙特卡洛模拟 散射，不错,适合初学者，不错谢谢分享(Monte carlo simulation of scattering, good)

电力系统 重合闸建模，能很好的对分布式电源的重合闸情况进行模拟(Reclosing power system modeling, can be a good situation for reclosing simulation of distributed power)

背景提取，迭代法(Surendra算法）；即采用帧差的方法，一帧图像减去前一帧图像，即可以对比得到图像中变化（移动）的区域，扣除移动的区域，即得到不动的背景。采用多帧图像迭代的方法，得到更加准确的背景。(Background extraction, iterative method (Surendra algorithm) frame difference method is used, an image by subtracting the previous frame, which can receive the image contrast change (movement) of the area, less the area of ​ ​ movement, that is obtained immovable background. Multi-frame image iteration method, to be more accurate background.)

matlab主要指令集合表，以供大家查阅之便(matlab main instruction set table for access to the U.S. will)