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post #4351 of 4355 Old 07-29-2016, 05:29 PM
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Is it possible to create a meter correction matrix so I can profile my TV as if the 3D glasses are between my photometer and the display without actually having them there? I was able to do this for HCFR, but it's not clear if I can do the same thing with DisplayCAL. If so, how?
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post #4352 of 4355 Old 07-29-2016, 07:49 PM
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Quote:
Originally Posted by Stereodude View Post
Is it possible to create a meter correction matrix so I can profile my TV as if the 3D glasses are between my photometer and the display without actually having them there?
Yes, should be possible. Put the spectrometer behind the glasses, and the colorimeter directly on the display.
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I was able to do this for HCFR, but it's not clear if I can do the same thing with DisplayCAL. If so, how?
I'd imagine that "Tools->Create colorimeter correction..." would be an obvious place to start...
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post #4353 of 4355 Old 07-30-2016, 08:05 AM
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Originally Posted by gwgill View Post
Yes, should be possible. Put the spectrometer behind the glasses, and the colorimeter directly on the display.

I'd imagine that "Tools->Create colorimeter correction..." would be an obvious place to start...
Well, I don't have a spectro, just a colorimeter. However, I'll check it out before asking asking any more questions.
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post #4354 of 4355 Old 07-30-2016, 11:24 AM
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is it possible to do a 2.4 gamma autocalibration with displaycal/argyIIcms with a gamma of 2.3 at 5% and the rest at 2.4?
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post #4355 of 4355 Old 08-02-2016, 06:00 PM
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I'm happy to announce that I've released DisplayCAL 3.1.5.

This release brings HDR 3D LUT (BT.2020 & ST.2084) improvements, namely roll-off according to BT.2390 (hermite spline at the top end, black level lift similar to BT.1886 but with tapering factor at the dark end) and a simple form of tone mapping.

Example screen capture of Sony "Camp" HDR demo @ 400 cd/m2 peak luminance (TV gamut roughly Rec. 709):


How to set up DisplayCAL to create a HDR to SDR 3D LUT:

Set HDR peak luminance according to the capability of your display. I wouldn't recommend below 265 cd/m2.
Black output offset controls if there's roll-off at the dark end (0% black output offset = BT.2390), which is similar to BT.1886, or if the whole curve is offset and scaled by the black level (100% output offset).

I've also tweaked the perceptual intent gamut mapping to give better preservation of saturated colors than normally, but I would still recommend colorimetric as it should preserve saturations even better (the above screen capture is from a colorimetric 3D LUT). Note that despite colorimetric normally clipping, there's now always a form of tone mapping when SMPTE 2084 roll-off is selected.

Enjoy!
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DisplayCAL - Graphical front-end for Argyll CMS display calibration and characterization
Current stable version 3.1.5 released 2016-08-03
Previous development snapshot (OUTDATED): 3.1.3.2 Beta (Windows/0install) released 2016-04-23 | Standalone | Changelog
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Last edited by fhoech; 08-02-2016 at 06:34 PM.
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