Is it possible to search uploaded images, for example type 'pie chart' and see the images connected to those posts?
2 Answers
Your best bet is to use Google I guess. Try to search like this
pie chart site:https://mathematica.stackexchange.com/
AFAIK, halirutan has provided the most effective way to search for image using Google.
For SE's own tools, no, it's not really possible since images are stored just as that, image files. There's no metadata that describes if an image is a pie chart or anything else.
If users properly describe the alternative text on image markdown as "pie chart", e.g.
![example of pie chart](https://i.sstatic.net/i0ey1.jpg)
then it's possible to search for that using SEDE (as of writing, there's none). However, SEDE is updated each week.
filter=withbody
). Then you can pull out image tags. You can also do that for a specific user with users/{ids}/answers. I have a service connection lying around on the site that might help with this too. You can also use this .mx dump of answer metadata as a starting point for searches.