I would like to use images from social media (e.g. imgur, Facebook, Flickr etc) for research (ie not for profit or any industrial use).
Would it be legal to use images (for analysis, etc), if I do not store them locally?
Would it be legal to create a dataset of such images, that I will later publish with my future paper?
If it is not legal, how can there be these existing computer vision datasets of thousands (and even hundreds of thousands) of images taken from Google search or social networks? Surely the authors didn't ask every owner for permission.