I can't really move primaries. Red moves a bit with a lot of tint, but other primaries' xy seems fixed. No matter what, my primaries and secondaries are going to generally look somewhat like the attached picture, I was just looking for if there was some target to shoot for when primaries are off.
The best sense I could make of kras's last comments were the first three sentences here about getting dE close (http://www.avsforum.com/avs-vb/showt...9#post10414549
). I certainly cannot match all three values of xyY from the 709 reference for my secondaries. I also don't see how it's possible to change my primaries' hue (I thought tint had to do with rotation).
So setting Y can be accomplished using the luminance calculator and Ym=Yb+Yr for example.
The way I read this is that setting the secondaries to match the given Y would be an acceptable way to set the secondaries' position if I use the luminance calculator. (I think it would also be equal RGB, if I knew how to calculate RGB related to the primaries)
But how does he calculate xy of the secondaries from xy of the primaries+white instead of drawing a line on his computer screen.
If I knew what I was supposed to be doing with the dotted line in the picture, I could figure a point in 2d space.
TomHuffman's guide made setting primary Y levels very clear, but for secondaries I'm just not sure if there's some accepted way of something to shoot for when the primaries are off. Here are the ways that at one point or other have seemed like they might be a way to set secondaries, but I still have little idea which one might be the way to go:
- Equal RGB bars (HCFR calculates RGB based on colorspace setting)
- DeltaE against 709 reference
- Setting Y secondary = Y primary1 + Y primary2 (Similar to setting primary Y levels)