diff --git a/analysis.md b/analysis.md index c749007..1e73b3e 100644 --- a/analysis.md +++ b/analysis.md @@ -325,11 +325,9 @@ I plotted curves for both the Weber-Fechner model (log) and the Stevens model (pow) with different parameters. - The log curve with a flare of 0.05 (WCAG 2) is closer to the pow curve with - an exponent of 1/3 + an exponent of 1/3 and a flare of 0.0025 - The log curve with a flare of 0.4 is closer to the pow curves with exponents 0.56 and 0.68 (similar to APCA) -- The pow curve with an exponent of 1/3 **and** a flare of 0.025 is somewhere - in the middle. This shows that a big part of the different results between WCAG 2.x and APCA are caused by a different choice in parameters. If we were to change the flare diff --git a/plots/lightness_comparison.png b/plots/lightness_comparison.png index 7dda874..fe7afc7 100644 Binary files a/plots/lightness_comparison.png and b/plots/lightness_comparison.png differ diff --git a/plots/lightness_comparison.py b/plots/lightness_comparison.py index 3fd297b..13e1cc6 100644 --- a/plots/lightness_comparison.py +++ b/plots/lightness_comparison.py @@ -23,8 +23,7 @@ def stevens(flare, alpha): weber(0.05) weber(0.4) - stevens(0, 0.333) - stevens(0.025, 0.333) + stevens(0.0025, 0.333) stevens(0, 0.56) stevens(0, 0.68)