Except the feat says that you accurately recall everything that you have seen, not everything that you noticed. So you would have to decide what you think the difference between seeing and noticing is, if any. I would be inclined to treat "see" as much more inclusive than "notice". If there was something in sight, and it was part of a scene that the PC would reasonably have been attending to, then I will probably assume that they saw it. So in a 10x10 room in a dungeon in which the PC had time to look around, they likely saw everything in sight. Traveling through a city, they definitely saw enough to, say, retrace their path; whether they saw the smithy down the side street might be subject to a check to see if they happened to be looking in that direction when they passed by.
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