基于点的全局阈值法，即最大类间方差法，并基于Matlab软件环境进行算法的仿真。该系统能够对图像中某些感兴趣的部分进行提取，较好地实现了图像分割-Point-based global threshold method, the Otsu method, the simulation of the algorithm based on Matlab software environment. The system is able to extract some interesting part of the image, to better achieve the image segmentation