Websites of all kinds enhance user experience with images. In fact, images appear on almost every Web page. Some of the images are uploaded by users, some are proprietary, and some come from 3rd parties. Regardless of origin, many of these images include text elements, and sometimes you need to be aware of or handle that text.
For example, you might need to:
These are common needs, but it's a hassle to do these things manually, even for your own proprietary images, and not an option for images that are uploaded by your users for immediate display.