用迷宫算法实现聚点的统计，这里只是简单扫描每个像素的四个方向，当然，可以很容易修改源码，实现八个方向的扫描，至于聚点嘛，就是被数码0包围的数码1组成的块，这种算法在元件识别方面可以应用。-maze algorithm used accumulation of statistics, here simply scanning each pixel of the four directions, of course, you can easily modify the source codes to achieve eight scanning direction as meeting point, but as they were surrounded by a digital 0 consisting of a digital block, this algorithm can identify components for the application.