People at ROS say I don't need ROS nor OpenCV.

[ADVANCESSSS]

So I'm trying to code my incredible important AI, so I had gotten to work codin those keyword commands in and coden it up, but, the commands to get say captured images or sounds from sensors are ??? --- People at ROS said I don't need ROS nor OpenCV to get the senses, soooo, what are the commands then I need to know to write in my code? *Do they come with a robot/it's hardware framework architecture?