Re: ICC applying in macOS 10.12

Hi, Am 25.07.2017 um 14:14 schrieb Vitaly Bondar:

The problem that i see here is next. If I have profile built by the display measurements and then add vcgt tag to change color or gamma of the display, then profile is not describing current display state anymore.

That's not how it's supposed to be done though. Calibration (which is what may be stored in a profile's 'vcgt' tag and then loaded into the graphics card videoLUT) is the first step, it needs to be active during profile measurements and profile use for the profile to produce the intended result. Changing gamma or other display adjustment parameters after the fact invalidates the profile (in the sense that it'll no longer accurately describe the display response). Florian.