- From: Chris Lilley via GitHub <sysbot+gh@w3.org>
- Date: Tue, 20 Feb 2024 21:01:02 +0000
- To: public-css-archive@w3.org
However, to give you something to go on meanwhile, additivity is one consequence of [Grassman's Laws](https://spie.org/publications/pm105_31_grassmann_laws) which form the basis of modern colorimetry (subject to certain conditions, which that link also states). And they are generally true but can break down under certain conditions, termed _additivity failure_. As an example, if human subject color matching tests are performed to match a given hue at different levels of chroma, the results do not exactly fall on a straight line on a chromaticity diagram but on a _slightly_ curved line. - [Color sameness: what to do when Grassmann additivity fails experimentally](https://www.spiedigitallibrary.org/conference-proceedings-of-spie/1909/0000/Color-sameness--what-to-do-when-Grassmann-additivity-fails/10.1117/12.149083.short) - [Perceived brightness of of whites with lower and higher chroma display primaries (additivity breakdown from the Helmholtz–Kohlrausch effect)](https://sid.onlinelibrary.wiley.com/doi/full/10.1002/msid.1392) -- GitHub Notification of comment by svgeesus Please view or discuss this issue at https://github.com/w3c/csswg-drafts/issues/9977#issuecomment-1955090586 using your GitHub account -- Sent via github-notify-ml as configured in https://github.com/w3c/github-notify-ml-config
Received on Tuesday, 20 February 2024 21:01:05 UTC