研究生时的现代信号处理的作业，在MATLAB中求图像纹理特征，基于分段非线性权重值的Pso算法，最大信噪比的独立分量分析算法，快速扩展随机生成树算法。- Modern signal processing jobs when the graduate, In the MATLAB image texture feature, Based on piecewise nonlinear weight value Pso algorithm, SNR largest independent component analysis algorithm, Rapid expansion of random spanning tree algorithm.