镜头切分的文档，我在网上找到了几个，在这里一并献给大家，不过我按这些方法做的程序效果都一般，大家自己改进吧-Segmentation of the document camera, I found several online, be dedicated to everyone here, but I make these methods according to the procedure have the effect of the general, U.S. to improve thei