Display Calibration

[Asmodian]

That looks good, without finer steps it is basically a perfect BT.1886 gamma, but <10% is where gamma issues usually happen.

Do not worry about it if it looks good.

Originally Posted by hajosattila

That's for sure?

Yes, BT.1886 is pure power 2.4 gamma but for displays with black > 0 nits (it adapts to your display). When having madVR change your gamma mathematically to a different pure power gamma it should think your display is currently pure power 2.4. Do not use "color & gamma" to change your display to a BT.709 gamma (do not use that gamma period). If you are not changing your gamma this way it is not important.

[hajosattila]

Originally Posted by Asmodian

That looks good, without finer steps it is basically a perfect BT.1886 gamma, but <10% is where gamma issues usually happen.

Do not worry about it if it looks good.



Yes, BT.1886 is pure power 2.4 gamma but for displays with black > 0 nits (it adapts to your display). When having madVR change your gamma mathematically to a different pure power gamma it should think your display is currently pure power 2.4. Do not use "color & gamma" to change your display to a BT.709 gamma (do not use that gamma period). If you are not changing your gamma this way it is not important.

finally this is the correct setting: https://i.imgur.com/jOZ7EUZ.jpg | https://i.imgur.com/Hbl0xmi.jpg (inactive)

Would you confirm to me?

[Asmodian]

Yes, both those settings pages are correct.

[hajosattila]

Originally Posted by Asmodian

Yes, both those settings pages are correct.

Thanks for you're help!

[hajosattila]

Other (CALMAN) question: Which pattern size do you recommend for a 55' white LED display? (55H6500 TV/CALMAN Home Advanced)

Thanks!

[chros]

Originally Posted by hajosattila

Other (CALMAN) question: Which pattern size do you recommend for a 55' white LED display? (55H6500 TV/CALMAN Home Advanced)

Hi Attila!

A very few people use Calman here, as I mentioned we usually use 3dlut created by DisplayCal. Even with that you cannot achieve perfect result (but good one), so you don't have to worry about the "old" way at all
I think it's good to go with half (or more) of the size of your screen.

[Asmodian]

Originally Posted by hajosattila

Other (CALMAN) question: Which pattern size do you recommend for a 55' white LED display? (55H6500 TV/CALMAN Home Advanced)

Thanks!

I use 25% with Calman, Constant APL 25 is good unless your TV goes into a low power mode if the APL doesn’t change for too long.

Constant APL is not important for your TV, in fact pattern choice is not important for your TV, any of them will give you the same results.

LCDs without a dynamic backlight or local dimming are easy to calibrate.

Oh, you mean the slider? I believe I used 100? Does that setting exist with madVR’s pattern generator?

[hajosattila]

@Asmodian | @chros Thank you!!

Calibration is complete! but unfortunately there are a lot of blue and red colors.
I tried it several times, but I could not solve the problem.

https://i.imgur.com/NXSForX.jpg

ps.: I'll make a 3D LUT file later, but first I want to calibrate the TV. (learning)

[Asmodian]

A lot of blue and red colors?

Do you mean your red and blue primaries are off? Primary colors are often off, they generally are not changed by in device calibrations because they are dependent on the backlight. What color is the backlight if the LCD filters out all the blue and green light? The only way to control that is to filter out less blue and green, which is usually not the correction needed.

P.s. For some reason the image quality of your report link is so bad I cannot make out the gamut chart or deltaE values.

[chros]

Originally Posted by hajosattila

I'll make a 3D LUT file later, but first I want to calibrate the TV. (learning)

Well, you can learn if you want, but this knowlegde/pain won't be needed there (unless you want to be a "professional" calibrator ):
- you only have to set the white point on the TV (which is pretty easy compared to the tedious task of manual calibration of all the colors)
- the rest is controlled via software completely

Originally Posted by Asmodian

P.s. For some reason the image quality of your report link is so bad I cannot make out the gamut chart or deltaE values.

And I can't even open the link at my workplace I'll take a look at it from home.

[chros]

Originally Posted by hajosattila

Calibration is complete! but unfortunately there are a lot of blue and red colors.

I can see that, but the CIE chart looks fine. Are they also visible?
Take a note of your settings of the TV then try out DisplayCal with 3dlut:
- reset all your config in the TV
- and only set the white balance nothing else when DisplayCal asks for it

[Asmodian]

Originally Posted by hajosattila

[B][U]https://i.imgur.com/NXSForX.jpg

ps.: I'll make a 3D LUT file later, but first I want to calibrate the TV. (learning)

I finally looked at your chart on a desktop. That red and blue error is exactly what I was talking about.

Originally Posted by chros

I can see that, but the CIE chart looks fine. Are they also visible?
Take a note of your settings of the TV then try out DisplayCal with 3dlut:
- reset all your config in the TV
- and only set the white balance nothing else when DisplayCal asks for it

The new version of Calman (2017) has a very simple almost automatic workflow for creating very good 3DLUTs for madVR (Color Cube). To my surprise they do seem a little better than those created by Argyllcms. It supports madTPG too, of course.

The level of integration is impressive, it even names the 3DLUTs according to the color space and configures madVR to use them. It supports creating a 3DLUT for every color space madVR does (and more).

It you have a license for Calman you should use it but DisplayCal is a very good and much cheaper option.

[Oguignant]

Originally Posted by Asmodian

I finally looked at your chart on a desktop. That red and blue error is exactly what I was talking about.



The new version of Calman (2017) has a very simple almost automatic workflow for creating very good 3DLUTs for madVR (Color Cube). To my surprise they do seem a little better than those created by Argyllcms. It supports madTPG too, of course.

The level of integration is impressive, it even names the 3DLUTs according to the color space and configures madVR to use them. It supports creating a 3DLUT for every color space madVR does (and more).

It you have a license for Calman you should use it but DisplayCal is a very good and much cheaper option.

True, it's much better Calman to create the 3Dlut. (the 2016 version of Calman is exactly the same as the 2017 version for creating 3Dlut).

I found a way to create a detailed 3Dlut of 17,576 points (Madvr limits it to 10,000 max points). If anyone cares, I can explain how.

[Asmodian]

Did you notice a difference between 17 thousand and 10 thousand?! 3000 is usually plenty, 6000 is more than enough.

Originally Posted by Oguignant

True, it's much better Calman to create the 3Dlut. (the 2016 version of Calman is exactly the same as the 2017 version for creating 3Dlut).

The quality is the same but the integration is much better now.

[Oguignant]

Originally Posted by Asmodian

Did you notice a difference between 17 thousand and 10 thousand?! 3000 is usually plenty, 6000 is more than enough.

it is not only the quantity, it is different the method that uses to create the 3dlut. Looks better with these options. Try it and you'll see the difference, especially in the blackcrush

Originally Posted by Asmodian

Did you notice a difference between 17 thousand and 10 thousand?! 3000 is usually plenty, 6000 is more than enough.



The quality is the same but the integration is much better now.

I do not want to be annoying, but I use Calman from the 2016 version and I do not change anything, the integration is the same. Note that the latest version 2016 is from August 2017

CalMAN 2016 Rev 2
Version: 5.7.3 Build: 2359
Official Release: August 7th, 2017

[hajosattila]

Originally Posted by Asmodian

That red and blue error is exactly what I was talking about.

What do you think exactly?

[Oguignant]

Originally Posted by hajosattila

@Asmodian | @chros Thank you!!

Calibration is complete! but unfortunately there are a lot of blue and red colors.
I tried it several times, but I could not solve the problem.

https://i.imgur.com/NXSForX.jpg

ps.: I'll make a 3D LUT file later, but first I want to calibrate the TV. (learning)

Did you create a meter profile for your Tv?

[hajosattila]

Originally Posted by Oguignant

Did you create a meter profile for your Tv?

No, I did not make it.

[Oguignant]

Originally Posted by hajosattila

No, I did not make it.

in the "Correction" option that you use?

[Asmodian]

Originally Posted by hajosattila

What do you think exactly?

Your red and blue primaries are off, your green primary is very accurate.

You cannot change these with a calibration, they are not bad and I would not worry about them.