I wish there were better technology around the use of alt texts on images. Most images on heavily visited social networks like Facebook are not curated by the

I wish there were better technology around the use of alt texts on images. Most images on heavily visited social networks like Facebook are not curated by the site owner. They are uploaded by users, and the alt text can only be as detailed as the uploader bothers to type in. Most people don't bother at all. If required, they'll type in garbage to get through the form as quickly as possible. This is not something that site owners can easily control. This would seem to be a prime opprtunity to whip out modern image recognition software, either on the server side or as part of the screen reader. We've all heard about server side image recognition, but there might be privacy implications about exposing automatically recognized details as alt text. Are there any screen readers that can analyze an image and output something like "an image of a woman and a baby in a playground?"