Fact Checking Comes to Google Images
https://www.blog.googleStarting today when you search on Google Images, you may see a “Fact Check” label under the thumbnail image results. When you tap one of these results to view the image in a larger format, you’ll see a summary of the fact check that appears on the underlying web page. These labels may appear both for fact check articles about specific images and for fact check articles that include an image in the story.
Just as is the case in Search, adding this label in Google Images results does not affect ranking.
There is nothing the publisher can do to get these. Google gets this from independent, authoritative sources on the web.