一个位图分割合并工具.可以将一个位图按横竖划分为任意个方格. 这是本人原创的!-A bitmap split merge tool. A bitmap can be any number of squares divided by horizontal and vertical. This is my original!

能实现最小包围盒法方格划分，并利用中值进行点云精简(The minimum bounding box method can be implemented and the median value can be used to simplify the point cloud.)