Can't be done today. If I recall correctly there is an open Idea for this behavior.
The standard way to do this is to load custom images into Tableau and manually associate each image to the relevant item you're filtering on (in this case, a school). There is no way to load images dynamically.
Here's the Idea I was thinking of: https://community.tableau.com/ideas/8563
In above idea https://community.tableau.com/ideas/8563
---Using a URL action filter to point to the product thumbnail URL (limitation - displays only 1 product at a time)
this query was resolved I need the solution for the same.
Any Suggestion how Can i do this.