Google has now started to implement AMP results showing in image search results on mobile devices. To see these AMP results, use your mobile device and do a search within Google Image Search. Once the results appear, tap on a picture and start scrolling through the pictures. You will begin to notice that some of the images have the AMP logo (lightning bolt in a circle). Once you click the title of the image, you will be take to the AMP version of that page where the image was pulled from.
Below is an image from a mobile search in which an AMP result appears in the image results for bedroom design.
This feature is another step in Google’s efforts to make AMP more visible within its search results.