Core Image is an oft-overlooked first-party framework on Apple platforms for the efficient processing of images and videos. It includes a wide range of built-in filters, as well as the ability to build your own custom filters using Metal. Discover how to integrate Core Image into your own apps, and how the optimized image processing can save your users time and battery life. Learn how to perform real-time video processing, and how you can extend Core Image by implementing your own custom filters directly in Metal.
This is a companion discussion topic for the original entry at https://www.raywenderlich.com/5428948-core-image-from-ciimage-to-metal-and-beyond