- LINEAR () : A color value goes from 0-1 in a linear fashion. If you were to check half way from 0-1 you would get a value of 0.5
- sRGB (LINK) : Adjusts the colors to give you more colors in the mid ranges while crunching blacks and white. Mostly for Computer monitors.
- rec709 (LINK) : Use for HDTV. Your TV maybe converting this before you see the image
- rec2020 (LINK) : HDR Monitors
Why use Linear?
When using a file in Nuke the math needs to be correct. When you apply a sRGB curve you are messing the math up. For example 50% gray is now more like 70% gray.
*JPEG under the hood adds a sRGB curve to the image without you seeing it.