1、配置空間環境變量
cd catkin_ws
source devel/setup.bash
2、採集數據
roslaunch usb_cam usb_cam-test.launch
3、存包
rosbag record /usb_cam/image_raw
4、播放並重映射
rosbag play ros.bag /image_raw:=/camera/image_raw
rosrun image_view image_view image:=/camera/image_raw