Originally Posted by jvincent
OK, so I managed to get back on and start from scratch.
RShannonCA, if you do the following you should be OK.
Step 1. Set everything on the TV to default (mid-point) settings.
Step 2. Adjust primaries / secondaries to best fit the CIE chart. I managed to get this as close as before with the adjustments available on my TV.
Step 3. Adjust contrast / brightness until I get a good gamma curve. I didn't do this before and I'm probably as close to 2.2 as I'm ever going to get now.
Step 4. Fix greyscale. This was the tricky part. When adjusting the greyscale you need to pay attention to the gamma. In some cases you need to adjust the color temp by REDUCING component instead of INCREASING them. The key here is to keep an eye on the gamma. If it starts to get out whack then you probably need to decrease the primary instead of increasing it.
Done for now.
I think it would be a good idea to try and have a quick and brief step by step process to help people out. If we ultimately come up with one I could edit it back into the original post in this thread. I believe there were a couple posts back in the other thread along these same lines.
As for jvincent' list above I would say #1 is not necessary. Item #3 should be the first thing done (set brightness and contrast) but should be done using test patterns. Color/tint should then be set using test patterns (filters in needed) as well since color/tint affect the position of the RGB on the CIE triangle but ultimately are not how you want to adjust them. Then go to grayscale. I'm not saying my comments are correct, it's just my $.02 based on what I've read around here.
So I guess this is what I did...
1) Set brightness and contrast using DVE test pattern.
2) Set color and tint using GetGray pattern with only blue CRT turned on.
3) Took grayscale measurements and checked gamma (mine was pretty much on 2.5 so left it).
4) Adjusted gray scale targeting dE of less than 3 for all IRE.
5) Went back and checked brightness/contrast and color/tint using test patterns.
6) Measured and checked CIE triangle. I don't have specific adjustmets for RBG so it is what it is.
From there it is pretty much an iterative process checking gamma, color temp, gray scale, CIE and getting them close.
For #3 I would think it is recommended to adjust specific gamma settings rather than brightness/contrast to get it right. Comments?
For #2 and #6 am I correct in that people should not use color/tint as the primary method for trying to move color points on the CIE. These should be done with specific Red, Green, Blue adjustments if available, which is only on a few displays. The rest of us just get what we get?