Comment by Eisenstein

This script doesn't do search, but it generates keywords for images and places them in the image metadata. You can then search for keywords using something like Diffractor. I will warn though that any AI solution not geared towards NSFW will not give good information on NSFW images, though it may give a keyword such as 'intimate' or 'adult content' which is all you need.

* https://github.com/jabberjabberjabber/LLavaImageTagger/