For a camera it would just be referred to as post processing. You can even see s...

Gigachad on Dec 30, 2021 | parent | context | favorite | on: iPhone camera app replaces person’s head with a le...

For a camera it would just be referred to as post processing. You can even see some of this going on when you open the photo immediately after taking it and see it snap in to high quality later. Or the difference between the live viewfinder and the final image.