ProRAW has one more surprise up its sleeve. A few years ago, Apple began using neural networks to detect interesting parts of an image, such as eyes and hair. Apple uses this to, say, add sharpening to only clouds in the sky. Sharping faces would be quite unflattering.
Understanding Apple ProRAW
https://petapixel.com/2020/12/21/understanding-apple-proraw/
Excerpt:
ProRAW has one more surprise up its sleeve. A few years ago, Apple began using neural networks to detect interesting parts of an image, such as eyes and hair. Apple uses this to, say, add sharpening to only clouds in the sky. Sharping faces would be quite unflattering.
ProRAW files contain these maps!