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ROS only provides tools for working with ROS bag files. If you want to use someone else's data set, you'll probably need to write a custom reader. You can also do some searching online to see if anyone else has written a ROS library for reading this dataset.

OpenCV provides some good functions for loading individual images. If you're dealing with a lot of images, you may want to look for a filesystem library for locating the path to those images before you load them. boost::filesystem is good for this, but it can be a bit difficult to get started.

ROS only provides tools for working with ROS bag files. files.

If you want to use someone else's data set, you'll probably need to write a custom reader. reader for their dataset (this will not be related to rosbag in any way). You can also do some searching online to see if anyone else has written a ROS library for reading this dataset.

OpenCV provides some good functions for loading individual images. If you're dealing with a lot of images, you may want to look for a filesystem library for locating the path to those images before you load them. boost::filesystem is good for this, but it can be a bit difficult to get started.

ROS only provides tools for working with ROS bag files.

If you want to use someone else's data set, you'll probably need to write a custom reader for their dataset (this will not be related to rosbag in any way). You can also do some searching online to see if anyone else has written a ROS library for reading this dataset.

OpenCV provides some good functions for loading individual images. If you're dealing with a lot of images, you may want to look for a filesystem library for locating the path to those images before you load them. boost::filesystem is good for this, but it can be a bit difficult to get started.