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A comment on H.266/Versatile Video Coding (VVC). Parent comment

Re:H.266/Versatile Video Coding (VVC) by cycrutchfield on Monday July 06, 2020 @10:04AM (#23747939)
>some objective measure of fidelity to the original

This is part of the problem. What is an "objective" measure of perceptual fidelity to the original?

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Re:H.266/Versatile Video Coding (VVC) by jononor on Monday July 06, 2020 @10:13AM (#23748052)
A measure that has consistently high agreement when evaluated by humans, repeatable across laboratories. Image quality tests can (and are) be conducted in a structured fashion.
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Re:H.266/Versatile Video Coding (VVC) by cycrutchfield on Monday July 06, 2020 @10:21AM (#23748172)
No such measure exists, at least not one that can’t be gamed.
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Re:H.266/Versatile Video Coding (VVC) by jononor on Monday July 06, 2020 @11:21AM (#23748867)
No if you allow / don't control for attempts to game it then no such metric can be made. One attempt to counter this is to use multiple independent labs.
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Re:H.266/Versatile Video Coding (VVC) by anoncareer0212 on Monday July 06, 2020 @10:10AM (#23748017)
SSIM
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Re:H.266/Versatile Video Coding (VVC) by 0-_-0 on Monday July 06, 2020 @10:14AM (#23748068)
I wouldn't say so, see Figure 1:

https://openaccess.thecvf.com/content_cvpr_2018/papers/Zhang...

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Re:H.266/Versatile Video Coding (VVC) by anoncareer0212 on Thursday July 09, 2020 @03:36PM (#23784155)
It's not perfect but much better than nothing
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