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Correlation Files for Calibrite/Xrite Colorimeters (ColourSpace)

 
 
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Author mykillk
ZRO
#16 | Posted: 18 Jan 2024 01:13 
Is there a guide or tool for converting a CCSS file to this format? I have a colorimeter correction file that matches my device and monitor that I'd like to use. The reference device was an i1 Pro 2 so not exactly a high end device but the correction file is useful to me for my personal use!

Author Steve

INF
Male
#17 | Posted: 18 Jan 2024 08:33 
As per the i1D3 User Guide on the website, just convert the CCSS file into a .CSV as defined there.
https://www.lightillusion.com/i1d3_manual.html

Steve
Steve Shaw
Mob Boss at Light Illusion

Author janos666
ZRO
Male
#18 | Posted: 22 Jan 2024 21:43 
I realize this is not exactly a "request thread" but I still wish to request high resolution and high certainty samples of a Pioneer 9G Kuro PDP's native gamut mode.
- This is what I decided and the best of what I am able to provide as a "reference Rec709 display" for Rec709 SDR vs wide-gamut *anything* white-point eye-matching.
- It's sort-of a 'legendary display', so I believe it earned it's place on a list like this, no matter what.
Thank you!

Author ChadN
ZRO
#19 | Posted: 25 Jan 2024 20:49 
All of my TVs (except my 2017 LG OLED) are either backlit or local dimming LED TVs. I'm wondering which correlation file I should use with my TVs. Thanks!

Author Steve

INF
Male
#20 | Posted: 26 Jan 2024 08:58 
Unfortunately, without knowing the actual backlight in use its impossible to know the correct Correlation File to use.
And as manufacturers rarely provide that information, that is why Correlation files often list the actual TV make/model within the file name.
If you had a Spectro you could look at the spectral response, and work out the likely backlight types.
But, if you had a Spectro you would be better using that for Probe Matching, and not using a Correlation File.

Steve
Steve Shaw
Mob Boss at Light Illusion

Author ChadN
ZRO
#21 | Posted: 26 Jan 2024 13:37 
I have an i1Pro RevD. I can use that if needed. Not reference of course. I was hoping the white or RGB one would work.

Author Steve

INF
Male
#22 | Posted: 26 Jan 2024 14:55 
You would likely find the i1Pro2 works better when used for Probe Matching, compared to a 'generic' Correlation File.

Steve
Steve Shaw
Mob Boss at Light Illusion

Author ChadN
ZRO
#23 | Posted: 26 Jan 2024 16:36 
Steve:
You would likely find the i1Pro2 works better when used for Probe Matching, compared to a 'generic' Correlation File.

Technically it's an original i1Pro, not an i1Pro2, but from what I can tell visually, it still provides the same results it did years ago. Now I need to learn probe matching and how to do it with my PGenerator.

Thanks for the feedback!

Author Steve

INF
Male
#24 | Posted: 26 Jan 2024 16:52 
Oh - and with the LG WOLED you would not want to use a Correlation file.
You need to use Probe Matching, as you need to use FCVM, and you can't do that with a Correlation File.

Steve
Steve Shaw
Mob Boss at Light Illusion

Author ChadN
ZRO
#25 | Posted: 26 Jan 2024 16:59 
One last question. Can I do the profiling on the TV using generated patches from my PGenerator? If so, is there a guide? When I brought up the profiler, it defaulted to patches generated directly by ColourSpace on my laptop and not the PGenerator. Given how Windows 11 can mess with color output, I'd prefer to use the generator if possible.

Author Steve

INF
Male
#26 | Posted: 26 Jan 2024 17:27 
Yes, just connect ColourSpace to PGen, and do the Probe Matching, as well as all the profiling for calibration

Steve
Steve Shaw
Mob Boss at Light Illusion

Author ChadN
ZRO
#27 | Posted: 30 Jan 2024 14:33 
I have a question and honestly I'm not sure if it's PG or my TV. I have a Vizio v705-G3 and I can get it into HDR10 and DV modes. I can confirm this by pulling up info or looking at the calibration options. However, no matter what mode it is in, SDR, HDR10, or DV, my primaries and secondaries ALWAYS read Rec 709 coordinates.

Is it my TV or am I doing something wrong?

Also, when I change to HDR10, DV, P3, HLG, etc. and the TV mode corresponds to what I'm sending, do the Ted calibration patterns automatically adjust to the appropriate mode? I wasn't sure if they are still sent as HD and "upscaled" by the TV or if the PG would adjust and send the correct version of Ted's pattern to the TV.

Author Steve

INF
Male
#28 | Posted: 30 Jan 2024 14:36 
Sounds like your TV...
With the TPG, it just sends RGB patch values.
For example, 100% Red is always 255,0,0 (8-bit) for any colour space.
The 'amount' of Red the displays shows (how saturated) depends just on the display.

Steve
Steve Shaw
Mob Boss at Light Illusion

Author janos666
ZRO
Male
#29 | Posted: 6 Feb 2024 16:31 
Steve:
Oh - and with the LG WOLED you would not want to use a Correlation file.

I recently did a test about this. I calibrated an LG C9 with an i1d3p + a custom correlation file (I used my own i1Pro2 to create a correlation file using this C9 in complete reset state: unity 1D, unity 3D LUTs uploaded and I measure R,G,B,W at 100/100 lum/sat). Then I measured the Rec709 calibrated state with an i1Pro2.
Using 100/100 lum/sat W, R, G, B patches, the dE numbers were: dE 0.80, 1.32, 1.23, 0.77
One should expect dE~2 maximum error from an i1Pro2 compared to a reference spectrophotometer, so I guess my i1d3p copuled with a correlation file is just as accurate as my i1Pro2 on it's own since these two different kinds of instruments agreed within dE<2.
Of course it would be better if I could throw a real reference instrument into this comparison.

Author Steve

INF
Male
#30 | Posted: 6 Feb 2024 16:44 
No - that is not what I meant.
With WOLEDs you need to use FCVM, not FCMM.
You can only do that when using Probe Matching, not a Correlation File.
With a Correlation File the 'correction' is burnt into the data as the profile is being measured.

Steve
Steve Shaw
Mob Boss at Light Illusion

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