If you author an image on Display A and save its colours, then how does Display B know to render colours correctly that looks consistently with Display A?
You have two options:
1.) Tag Display A's colour space into the image, then convert colours to match Display B's colour space when rendering;
2.) Convert colour data from Display A colour space into a generic colour space (like sRGB, Display P3, ACEScg, etc) and embed that in to the image, then convert colours to match Display B's colour space when rendering.
If you author an image on Display A and save its colours, then how does Display B know to render colours correctly that looks consistently with Display A?
You have two options:
1.) Tag Display A's colour space into the image, then convert colours to match Display B's colour space when rendering;
2.) Convert colour data from Display A colour space into a generic colour space (like sRGB, Display P3, ACEScg, etc) and embed that in to the image, then convert colours to match Display B's colour space when rendering.