Multiple images on page, but google to only crawl certain ones

Say I have a page with a main image of a product at the top and several related product images at bottom. When I google the main product, the google search results also show up the main product image and also the related product images, claiming to be the main product. Is there a way I can stop google from crawling certain images on the page, by adding a tag to the images I don't want google to crawl, like a no-crawl?