Hello everyone,
I'm not a regular PTB user, but may turn to it for solving the following problem: I need to be able to output precise RGB values. What I mean is this: when I set a pixel to a certain color (r,g,b), I want my video card to output those precise values, rather than my values corrected for color or gamma by the video card and/or the operating system.
If I do PsychImaging('DisplayColorCorrection', ..., 'None'), will that give me what I want? Will it somehow turn off the system's (OS + video card) color and luminance corrections, and output the (r,g,b) values without modification?
If so, that's great. If not, I'd appreciate any advice about how to get where I want to go. (I have Windows 10 systems with a variety of video cards, from on-board Intel to higher-end NVidia or AMD. MacOS advice would also be useful.)
Thanks a lot,
Mark