Originally Posted by chad473
I've searched and can't seem to find any sort of assistance/walk through for using these patterns with hcfr. Is there such a thing? I'm admittedly a novice to calibration but I went ahead and purchased the patterns today after confirming that I can use them to trigger HDR mode on my setup. I was able to perform a 2pt as I'm used to in SDR and dial in the grayscale DE, but trying to line up the EOTF like I'm seeing people do in Calman is where I get lost.
You tell HCFR to use DVD/manual pattern generator. Set any other options as needed (gamma targets, color space, any manual black overrides, etc).
If you're wanting to do a grayscale sweep, you can hit the "measure grayscale" button. Before clicking ok to measure, start the pattern it asks for (5%, 10%, etc) then hit measure once it's on the screen. when it's done it will ask for the next pattern, so change to it and hit ok to measure.
Repeat until done.
If you want to measure a single pattern and not all, simply click in the column you want and click the camera icon to perform a "unique measurement".
This will update the measurement data in that column.
If you want to do live, on-the-fly measurements click the green triangle to start continuous measurements. Since it's doing back to back measurements, you can keep your controls up on the screen so you can adjust them until you get what you want for a particular pattern.
Do note that some displays controls may alter measurements. Some force backlight to max, others may simply cover the pattern. For my E6 oled, having any interface elements effects ABL dimming which will skew measurements slightly and moreso on dark patterns.
measure, adjust, repeat until happy.
Now if you were asking how to go about it, like as workflow or perhaps what controls to change and when, then I suggest you look at some of the other threads in this forum.
This is a recent post from Mr. Aspiotis
who was kind enough to share some links to resources for this purpose. It was from the calibration thread for my own display, but is not ONLY for the displays in that thread.
I hope something here helps answer your question.
I didn't see your screenshots til after I submitted my post. Oops.
I don't know what kind of controls you have on your display. You mentioned 2 point controls, and your screenshots are in 10% steps so I'm going to assume you have both 2-point controls and 10-point controls. You can only do so much with only 2-point controls.
On the measurement window there are radio buttons above the measurement/delete buttons. Your are set to xyY but I'd set it to RGB, personally.
This will change the rows in your measurements window from x, y, and Y to R2020, G2020 and B2020.
No one's display can get any where close to the 10000 nits target that is assigned to the 100 column. All displays are going to clip, but each will be at different max nits. I'm just guessing here but I'd say your display should reach somewhere between 75% and 80%. My E6 clips around 700 nits.
Find where this clipping point is on your display, with default white balance controls (0?). When you have brightness set (black level). Check black levels again afterwards, and if needed keep going back and forth until you don't need to change them anymore. I'm sure you already know this though, just reiterating it to satiate my OCD.
For some displays, using 2-point controls to further fine tune black and white can be a better technique instead of adjusting 2-point controls using patterns 25/30% and 75/80%.
For everything in between, you need to raise and lower R, G & B controls up or down while maintaining the balance. By raising and lowering them together, you are changing the luminance of that point. Changing this luminance is how you dial in gamma.
You'll need to measure, adjust, and repeat for all patterns until you no longer need to adjust any controls.
Then you can move on to colors. I think we should keep HCFR set to rec2020 and not "2020/P3". I'm not at the color stage yet, so I'm just assuming this is correct.
I think we should start with the "P3 in BT2020" patterns, only using them to set luminance, and then switch to using the "50% amplitude 50% saturation" to set tint and saturation. Hmm, P3 in 2020 might be redundant and thus ignored.
Again, like I said I really don't have a clue about the color calibration aspect. Why do we have a P3 in 2020 option in HCFR? Is it for calibrating mastering/mixing/grading displays?
50% vs 100% saturation I understand, but what about 50% vs 100% amplitude/intensity?
I'm just waiting until I'm done with grayscale before answering my own questions regarding color workflow and targets.
Then I think we should switch to use the 75/75 2020 patterns