When you add image tracking to your ARKit app, it will continuously scan the environment for images that match the ones you added to your app. This feature is great if you want users to look for specific images in their environment so you can provide more information about them or as part of a scavenger hunt. But more elaborate implementations might exist as part of a textbook or magazine where scanning a particular page would cause the whole page to come alive as part of a unique experience.

Before you can implement the image-tracking experience, you must prepare some images for your users to find in the app. Once the content is ready, you're ready to build the AR experience itself.