- From: Chris Lilley via GitHub <sysbot+gh@w3.org>
- Date: Tue, 02 Mar 2021 22:09:50 +0000
- To: public-css-archive@w3.org
> I really would like to understand why "middle contrast" is not at all the same as the accepted "middle grey" ... cube root is increasingly less accurate above 100, and is also less accurate in the mesopic range This is just the breakdown of Weber's law, no? Its (one of the reasons) why many EOTFs have a linear portion near zero, and also why HLG uses a gamma law to media white and a log law above. > I am presently, increasingly of the opinion that "L* is not super useful for self illuminated displays." You don't say why. > For sRGB, I have been working on some alternatives: Ls and one possible definition is: > Ls = Y0.62 * 121 - 21 Where do these numbers come from? Has this had any peer review? -- GitHub Notification of comment by svgeesus Please view or discuss this issue at https://github.com/w3c/csswg-drafts/issues/6061#issuecomment-789255755 using your GitHub account -- Sent via github-notify-ml as configured in https://github.com/w3c/github-notify-ml-config
Received on Tuesday, 2 March 2021 22:09:52 UTC