How to save or download high quality images from any website

How to save or download high quality images from any website.
Some websites have the hover-zoom feature. The hover-zoom feature isn't a single image so that is why you can't save or download it in a normal way. Hovering selects from multiple images and provides scrolling functionality, so it's more like interacting with a program. If you view the page's source, you will often see the URLs for the various size images.