On Google’s image search results page, the company is displaying the availability of products to users. This was spotted by Frank Sandtmann, a Hamburg-based digital marking consultant. He noticed that the feature was in English, German and Polish image search results.
Powered by product Schema markup, product availability in the image results is denoted in green for in-stock items and red for out-of-stock items. This will let users filter through results at a glance and make image search a bit more shoppable.
If you click an image result with availability markup, the price, an excerpt of the description and the star review (if available) and brand info are shown.