Prevent copy-pasted base64 encoded images in WordPress post editor

Prevent copy-pasted base64 encoded images in WordPress post editor

When editing a post in the WordPress post editor, it's possible to
directly copy-paste in an image.
The problem is, this stores image data in the database, increasing the
database size and causing potential performance issues. (Consider that
WordPress stores post revisions for every draft.)
Is it possible to disable this in order to prevent this from happening?