pair of patches comes from the same image or not now that by itself you could also do that that doesn't work as well because then again you don't have enough enough data for it for that so instead what we're gonna do is we're gonna train if a pair of patches have the same is it metadata tag there's a many different metadata exif metadata tags like camera brand focal length JPEG compression etc etc and for each one we can predict not the value of that tag but is it the same or is it different okay and so the idea is that we have a