图形处理中的移动物体监测是难点，次文件中含有较好的方法-Graphics processing is difficult to monitor the movement of objects, sub-file contains a good way

打开摄像并进行照相eventdata reserved - to be defined in a future version of MATLAB handles structure with handles and user data (see GUIDATA) If Enable == on , s on mouse press in 5 pixel border. Otherwise, s on mouse press in 5 pixel border or over