Using htaccess, how to restrict seeing directory contents, but allow server to use the contents?

Question

More specifically, I have an htaccess file that restricts anyone from seeing the directory contents. Such that, nobody can see my 1000s of images in www.example.com/images by us

Answer 1

in that folder which you want to show access forbidden create a file with name index.php and paste this code

Forbidden
You don't have permission to access This Folder
on this server.