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25th December 2015, 00:11 | #1 | Link |
Registered User
Join Date: May 2015
Posts: 188
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Software Players: RGB TV or Full Level Calibration?
Gday Doom9ers and Merry Christmas to all
I'm feeding my display RGB on the theory that since GPUs work in RGB I might as well to try and reduce the number of colour conversions / processing in the whole chain. Since film content is largely 8 bit BT 709 YCBCR 4:2:0 or atleast until UHD Bluray comes around, I figured I'd keep my Nvidia setup to RGB 8Bpc. Then the choice becomes with software players, do you calibrate for TV levels with 16 being black, or PC levels with the full range? I had a further theory that since there is greater range in 0-255 in PC levels that would be better. But then ofcourse, is the mysterious mention of whiter than white content in some films and blacker than black. I'm not sure if there is in fact any blurays produced with this? And if there is, surely the directors intent was for them not to be visible given the calibration to 16 is black??? Then I added to my theory that while my display is a "TV", its a "smart hub" with a whole bunch of digital content and features; plus my HTPC desktop is a PC. The whole question of what is a TV and what is a monitor has become very blurred in modern times. I've ran into a practical problem with full range calibration.I need full range PC level 4K UHD test patterns like pluge. Everywhere I look to download some, its all TV levels for calibration.....Then I saw some posts on the AVS Forum claiming PC levels cant be calibrated for. I find that absurd. Surely you still need to eliminate say blooming in calibrating brightness settings. I get they probably just meant brightness and not gamma / colour, but even still brightness can be wrong in PC levels and needs calibration. So: * What level do you calibrate too? * Why do you calibrate to this one and not the other? * In specific UHD 4K RGB PC Level calibrations, can anyone please share test patterns I can download for calibrating brightness Thanks |
25th December 2015, 00:57 | #2 | Link | |||
Registered User
Join Date: Oct 2012
Posts: 7,926
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outputting limited ranged doesn't give you any chance to see WTW content. so you have to output full range with madVR set to limited and ruining your display CR. Quote:
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and what have picture to do with calibration in the first place? |
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25th December 2015, 01:50 | #3 | Link | |
Registered User
Join Date: May 2015
Posts: 188
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Quote:
For HTPC applications using modern "smart hub connected" displays, do you do TV levels or full levels in RGB? And why? |
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25th December 2015, 01:57 | #4 | Link |
Angel of Night
Join Date: Nov 2004
Location: Tangled in the silks
Posts: 9,559
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WTW and BTB existed in the CRT days. With flat panel, it's all 0-255 in RGB, don't let old broadcast standards trip you up from correctly calibrating your own system, unless you enjoy watching everything washed out.
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25th December 2015, 04:53 | #5 | Link | |
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Join Date: Oct 2012
Posts: 7,926
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Quote:
i have no clue what "smart hub connected" is. but a HTPC is working in full range RGB the desktop is "always" treated as full range. |
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