[JoeAltmaier]

Looking at pictures and categorizing them by appearance has very limited application. The human context can't be in grasped that way, can it?

For instance, 'wedding pictures'. A cake being cut; a cute kid throwing flower petals; a black-clad clergyman; a hand with a ring on it. Any human could categorize a pile of pictures into those that are in the 'wedding' category, and those that aren't. But no strategy based on weighting pixels is ever going to get there.

Likewise, 'cute' or 'scary' or 'funny'. And on and on.

[jchw]

There are definitely networks in our brain that classify what we're seeing. An uneducated guess, though, is that the networks in our brains have many, many intermediate representations and don't go directly from image -> words, but rather go to abstract classifiers that can go back to words.