Third article in the "Photoshop Algorithms Arcana" series. Classic looks like the simplest gradient interpolation method: plain RGB and zero conversions. Let's take its formulas apart and build the exact curve, but not the same pixels. pastila.org/essays/class...
Classic: how hard can it be?
The simplest of Photoshop's gradient interpolation methods: two colors, three channels, no conversions between color spaces. A look at the curve Photoshop draws between stops.
pastila.org