4 ms·

They have a database of known bad photos and they just check against it.

• mrits 5y ago
  How do you know it is a database of bad photos?
  • Spooky23 5y ago
    It’s a well known dataset that has been in use for many years for this purpose.
    • mrits 5y ago
      So you don't know
    • themaninthedark 5y ago
      I think the question is: since it is a secret database that contains pictures that are illegal to view, how can you be sure that everything in the database is actually bad?
    • noptd 5y ago
      ... says the quasi-government agency with zero accountability structure that keeps the dataset secret. What could go wrong?