Google app for Android and mobile web, will now show relevant badges on the image search results in the bottom lefthand corner of the thumbnails, that categorizes the image you're viewing.
Google said, "We're adding relevant badges to images indicating what else you can discover with a single tap."
These badges along with a text will help users find exactly what they want as well as clarify the action you can take. So for example, "if you look for 'cupcakes' in Image Search, you'll see badges for both video and recipe results." For other queries, "you may also see badges for products and GIFs as well," said Google.
Here is an animated GIF of it in action:
The badges currently available, and include recipes, videos, products, and animated images (GIFs).
Google advising webmasters and developers said, they can also help users indentify the type of content associated with an image on their site, "by using appropriate structured data on your pages."
For example, a site publishing recipes, can add "Recipe markup", for products, add "Product markup," and for videos, add "Video markup." However, since the algorithms automatically badge GIFs, a markup is not needed, says Google. Once, the relevant markup is added, just use the Structured Data Testing Tool to verify your pages are free of errors, and therefore "eligible for new Image Search badges."
In addition, using the Rich Cards report in Search Console, you can see aggregate stats on your markup.