greedy_method

针对学校运动会进行记分统计的一个简单小代码(Games for schools to score a simple little code statistics)

The method works as follows. 1. For a data set with dimensionality, d, compute the variance of data in each dimension (column). 2. Find the column with maximum variance call it cvmax and sort it in any order. 3. Divide the data points of cvmax into K subsets, where K is the desired number of clusters. 4. Find the median of each subset. 5. Use the corresponding data points (vectors) for each median to initialize the cluster centers.

说明：  Adaptive Watermarking

考虑微分方程在如下步长分布采用向前Eular、向后Eular，梯形公式、改进Eular和四阶龙格库塔方法计算近似值(procedure of approximate error using matlab)

This is the exercise of chapter 2 of the book Digital Image Processing of Gonzalez

matlab的语音信号处理工具箱（.m文件），包含常用及非常用功能，非常全面(matlab voice signal processing toolbox (. m files), including commonly used and very functional, very comprehensive)

三阶锁相环频率合成器的simulink 模型，可以演示三阶锁相环工程过程，验证参数合理性(Three phase lock loop )

关于Vega Prime的12篇期刊论文，涉及VP多场景切换、坐标系、多通道、飞行视景仿真等问题，有相当的参考价值。(About Vega Prime' s 12 journal articles, and more scenes involving VP switching coordinates, multi-channel, flight visual simulation and other issues, there is considerable reference value.)

说明：  noma的固定算法和树形算法的matlab仿真，可以直接运行。(Matlab simulation of fixed algorithm and tree algorithm of noma can run directly.)

here is the code for histogram equilization and convolution for image processing from gonzalvez book also the code for image rotation and image masking