linear

a variational region based image segmentation using matlab. efficient and simple

gauss-seidel算法实现对方程组的求解(gauss-seidel algorithm for the equations)

说明：  能通过添加不同程度的白噪声使一组数据扩展成多组数据(It can expand a group of data into multiple groups by adding different levels of white noise)

to retrive signal in matrix form from strucutre which obtained from scope of simulink

本程序基于MATLAB编写，用于加密一幅彩色图像，通过将图像分解为RGB三通道，并且用颜色索引发完成图像的加密，程序中包含了解谜代码(The program based on MATLAB, is used to encrypt a color image, through the image is decomposed into RGB three-channel, and complete the image encryption with color hair, understand the enigma code were included in the program)

DC Defect Correction Method. X = DC(A,B) attempts to solve the system of linear equations A*X = B for X. The N-by-N coefficient matrix A must be square and the right hand side column vector B must have length This uses the defect correction method until default convergence criteria or MAXIT iterations is reached.

粒子群算法以及优化后粒子群算法，可直接运行(Particle swarm optimization algorithm and particle swarm after, run)

pwelch可以实现matlab中的PSD估计，上传资料为pwelch的code(pwelch matlab can estimate the PSD, upload data to the code pwelch)

验证在时域AWGN添加的SNR的数值等于在频域获得的SNR数值(Validation added in the time domain SNR value equal to access to the SNR in the frequency domain values)

spectral-clustering-demo 谱聚类的matlab演示程序，是学习谱聚类的好资料，经调试通过，包含n-cut和改进的n-cut(spectral-clustering-demo demo matlab spectral clustering, spectral clustering is good information to learn by debugging through, including the n-cut and improving the n-cut)