Warshall-Floyd

matlab关于对图形梯度的一般计算，很简单的一个小算法！(Matlab graphics gradient on the general terms, a very simple algorithm for a small!)

速度非常块，效果接近blsgsm。堪称去噪的又一突破。 OWT SURE-LET SOFTWARE FOR MATLAB ******************************** Florian Luisier, Thierry Blu and Michael Unser Biomedical Imaging group Swiss Federal Institute of Technology Lausanne (EPFL), Switzerland. March 2007 This software implements the algorithm described in: [1] F. Luisier, T. Blu, M. Unser, "A New SURE Approach to Image Denoising: Interscale Orthonormal Wavelet Thresholding," IEEE Transactions on Image Processing, vol. 16, no. 3, pp. 593-606, March 2007. (Very block, the effect close to blsgsm. Denoising can be another breakthrough. OWT SURE-LET SOFTWARE FOR MATLAB******************************** Florian Luisier, Thierry Blu and Michael UnserBiomedical Imaging group Swiss Federal Institute of Technology Lausanne (EPFL), Switzerland.March 2007This software implements the algorithm described in: [1] F. Luisier, T. Blu, M. Unser, )

说明：  基于非负矩阵分解（NMF）的人脸特征提取算法，NMF基本思想是找到一个线性子空间W，使的构成子空间的基本图像的像素点都是正值，而且人脸图像在子空间上的投影系数也是正数(Non-negative Matrix Factorization (NMF) of facial feature extraction algorithm, NMF basic idea is to find a linear sub-space W, so that the composition of sub-space of the basic image pixels are positive, and face image in the sub-space projection coefficient is positive)

说明：  验证利用相关运算可以达到计算延迟、相位变化的功能(Verify operation can be achieved using the relevant calculation delay, phase-change function)

一个用于到达角估计的MUSIC程序，用MATLAB写的，希望对大家有用(an estimate for the arrival of MUSIC procedures, using MATLAB written in the hope that it may be useful to)

本文件里面有几个基于MUSIC算法的DOA估计。可以帮助新手熟悉过程。(Based on this document, there are several MUSIC DOA estimation algorithm. You can help the novice familiar with the proces)

利用数值计算 求解浅水方程，利用了Lax-wendroff有限差分，并附有输出图像展示(The shallow water equation is solved by numerical calculation, and the Lax-Wendroff finite difference method is used with output image display.)

alamouti_new: Orthogonal space-time block coding for 2xM antenna configurations.

捷联惯导仿真，对于初学惯导的人进行matlab仿真有很大的帮助！(Simulation of SINS)

将逐日数据转化为逐月数据和逐年数据的matlab程序，方便分析与计算(The daily data into data month to month and year by year data of matlab program，convenient to analysis and calculation)