There used to be something called “digital rights”. That is, when a publication wanted the right to publish a copy of an image to use in a digital format, it would pay an additional license fee. At first, like the internet itself or CD ROM (remember those ?) circulation, it was small. But everyone was preparing for the future. Now that its here, no one seem to notice.
Google is scanning books and will display them online, for a fee, without offering any compensation to non book copyright holders. That is 99% of images in books. They will however compensate publishers. Will the publisher compensate the photographers. Doubtful, since they are not the ones scanning and offering them.