Update 1 Sept 2020 – this has launched – so finding misuse of image should be a whole lot easier for both photographers and photo agencies.
More at Google here
First published 19 August 2020 Best news of the week here – This has been in the pipeline for months but looks like it’s gaining good pace! ….’When you specify license information for the images on your website, the image can display with a Licensable badge on image thumbnails in Google Images. This tells people that license information is available for the image, and provides a link to the license in the Image Viewer, which offers more detail on how someone can use the image.’ Here