Section 04 · 4 entries
Colour
Measuring something the eye does. Every entry is one problem the grid created and somebody solved.
Photo: RazorArt asset kit
- 04.1 · long read
RGB and CMYK
One adds light and the other subtracts it, and neither can describe the whole of what the other can.
- 04.2
Gamut
The set of colours a device can actually produce is a shape, and converting between devices means deciding what to do with everything outside it.
- 04.3 · long read
CIE 1931
A model of what the eye responds to, built from experiments on a small number of observers, that still underpins every colour system in use.
- 04.4
Test charts
A known reference in the frame is the only way to find out what a device is actually doing to colour.
The other sections
21 entries in all
The grid, and living with it.
Making marks interactively.
Smooth shapes from a handful of numbers.
What the hand actually holds.
All 21 entries in one table, with the section and the problem each one solved.