Convert rosbag topic to image
1. Setup $ sudo apt-get install ros-kinetic-image-view $ roscd image_view $ rosmake image_view $ sudo apt-get install mjpegtools 2. Create a roslaunch file (ex: export.launch) with following content and put your bag file in the path: /opt/ros/kinetic/share/image_view <launch> <node pkg="rosbag" type="play" name="rosbag" required="true" args="$(find image_view)/ test.bag (your bag file name) "/> <node name="extract" pkg="image_view" type="extract_images" respawn="false" required="true" output="screen" cwd="ROS_HOME"> <remap from="image" to=" /camera/image_raw (your topic name) "/> </node> </launch> 3. Exporting images $ roslaunch export.launch 4. Copy exported images to the directory you want $ ~cd $ mkdir image_data $ mv ~/.ros/frame*.jpg image_data/