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It is sometimes convenient to view camera images outside of rviz.

1. cd to the ros_ws directory on the development workstation

       $ cd ~/ros_ws

2. Initialize your environment

       $ ./

For more details see Init your sdk environment

3. Run ros image_view on any available camera or image topic

       $ rosrun image_view image_view image:=/cameras/left_hand_camera/image
   The image:=</image/topic/here is remapping the ~image parameter to the desired image topic.  

For more information on using image_view, see the ROS wiki page.