How to export image filenames from Wordpress database?

I have a Wordpress install that's using about 10,000 images. I'd like to export all filenames used in Wordpress to a file, filenames.log

filenames.log would look like this:

car.jpg boat.jpg milf.jpg car2.jpg other.jpg

etc...

The reason I'm doing this is that I have orphaned images in /uploads, and I want to run a delete operation and exclude these filenames that are actually in use.

What command could I run to generate such a file?

Thanks!