matlab开发工具箱中的支持向量机，重要参数的提取，仿真效果非常好，是小学期课程设计的题目，结合PCA的尺度不变特征变换(SIFT)算法，是机器学习的例程。- matlab development toolbox support vector machine, Extract important parameters, Simulation of the effect is very good, Is the topic of the elementary school stage curriculum design, Combined with PCA scale invariant feature transform (SIFT) algorithm, Machine learning routines.