[Sorry if these are basic questions, but I have not been formally trained in video where this may be taught in Video Systems 101.]
I got back into calibrating my Sony KDS-60A2020 this week while the wife is away on vacation. I got things looking pretty good according to the software using AVSHD and HCFR with an i1-D2. I did grey scale and CMS calibration.
I have questions that have bugged me for years whenever I get the chance to get into a calibration of CMS. What are the definitions for R-YR, R-YB, G-YR, G-YB? As an engineer, I want to know what is really being controlled by these adjustment, not just how to adjust them.
What I have learned from searching the net, including AVS Forums, is to adjust:
Color for Blue Luminance
Tint for Cyan position
R-YR for Red Luminance
G-YR for Green Luminance
R-YB for Magenta position
G-YB for Yellow position
Is R-YB defined as Red Luminance minus Blue Luminance? This works since Magenta position is along the Red-Blue side of the triangle. But then this logic doesn’t work for G-YB. Yellow is along the Red Green side.
Is G-YR a difference between Red and Green?
Is the “-“ not a minus sign? Is "Y" not Luminance? Am I over thinking this?
So what are these controls really adjusting? Or, how are they making the adjustment?