apca-introduction

commit

3370f941f5fdbdf75ac5b11e374895970eff3adb

parent

5d8f12e1c76385db0d4877281e8ac722489efecc

Author

Tobias Bengfort <tobias.bengfort@posteo.de>

Date

2022-08-04 04:46

focus conclusion more on policy

Diffstat

1 files changed, 6 insertions, 5 deletions

diff --git a/analysis.md b/analysis.md

@@ -470,11 +470,11 @@ number rises to 91% for a modified WCAG 2.x formula with an ambient light value
  470   470 of 0.4. This could indicate that APCA assumes more ambient light. It would also
  471   471 explain why APCA reports lower contrast for darker colors.
  472   472 
  473    -1 I like many of the ideas. However, I am concerned by the lack of publicly
  474    -1 available evidence. It is hard to evaluate APCA from a purely theoretical
  475    -1 standpoint. Thorough empirical validation is required. This has not yet started
  476    -1 and will be a considerable effort. See
  477    -1 <https://github.com/w3c/silver/issues/574>.
   -1   473 So far I like many of the ideas of APCA, but I am concerned by the [lack of
   -1   474 publicly available evidence]. Then again, the new algorithm cannot really be
   -1   475 evaluated without first making some policy decisions, e.g. which viewing
   -1   476 conditions we are aiming for. I hope this analysis can support the community in
   -1   477 figuring out what questions need to be answered.
  478   478 
  479   479 [Web Content Accessibility Guidelines]: https://www.w3.org/TR/WCAG21/
  480   480 [sRGB color space]: https://en.wikipedia.org/wiki/SRGB
@@ -488,3 +488,4 @@ and will be a considerable effort. See
  488   488 [1.4.12]: https://www.w3.org/TR/WCAG21/#text-spacing
  489   489 [does attempt to model spatial frequency]: https://git.apcacontrast.com/WEBTOOLS/APCA/
  490   490 [1.4.11]: https://www.w3.org/TR/WCAG21/#non-text-contrast
   -1   491 [lack of publicly available evidence]: https://github.com/w3c/silver/issues/574