The great advantage of doing computer vision in ROS is the fact that we do not have to reinvent the wheel. A lot of third-party software is available and we can also connect our vision stuff to the real robots or do some simulations. Here, we are going to enumerate some interesting computer vision tools for some of the most common visual tasks, but we will only explain one of them in detail later on (including all the steps to set it up). That is the visual odometry, but other tasks are also easy to install and start playing with. Just follow the tutorials or manuals in the links provided in the following list:
Visual Servoing (also known as Vision-based Robot Control): This is a technique that uses feedback information obtained from a vision sensor to control the motion of a robot, typically an arm used for grasping. In ROS we have a wrapper of the Visual Servoing Platform (ViSP) software (http://www.irisa.fr/lagadic/visp/visp.html and http...