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PlasmaPZ80U
Joined: 21 Jul 2009
Posts: 5
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| Posted: Fri Jul 24, 2009 2:10 am Post subject: ColorHCFR threshold of visibility (deltaE) |
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What is the smallest deltaE that is visible to the eye for the latest version of ColorHCFR?
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AFryia
Joined: 09 Mar 2006
Posts: 965
Location: S.E. Michigan VPH-G70Q
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| Posted: Mon Aug 03, 2009 11:39 pm Post subject: |
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I'm not sure I understand your question.
But I believe the general consensus is that a DE <3 is not detectable in video by the average viewer.
HCFR measures the difference between two stimulus (delta-E) so in theory it can measure to near zero. I've calibrated my PJ greyscale tracking with HCFR down to a delta-E of 1 or 2.
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docrings
Joined: 31 Aug 2009
Posts: 5
Location: Okinawa, JP
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| Posted: Mon Aug 31, 2009 12:52 pm Post subject: |
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I try to calibrate to DE = 2 or less, but agree that 3 is probably below human vision threshold...
Cheers,
Doc Rings
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