With an update to the Pixel Visual Core, you'll be able to take better pictures in apps that take advantage of the API. The built-in camera app on the Pixel 2 already utilises the dedicated core.
Pixel visual core RSS
It looks like Google has a bit of a surprise in store in the coming weeks as it will enable the Pixel Visual Core, which should improve the HDR+ technology on the Pixel 2 and Pixel 2 XL.