改善DV-Hop算法对节点的定位精度和提高覆盖率，-In order to raise the node localization accuracy and coverage fraction of DV-Hop algorithm,

实现一个简单的数码照相机和摄录机的功能，可以浏览图片，视频采集录制，回放等，如有错漏之处还请多多指正。-A programme that can view your photos like DC and video capture,video recording like DV. Sincerely hope you like it and any comments or corrections are well appreciated!