Users’s guide to hues and the magic of sensing an infinite spectrum with only 4 types of light sensors in the human eyeball, and to the difficulties of reproducing that magic for print and RGB display. A case of dimensionality reduction, one of histories more lengthily studied.
- Just noticeable difference in colour (also important in machine listening descriptors)
- SANDIA colourmaps
- Robert Simmon’s fascinating introduction to colour for NASA
- colorbox is a colour gradient/palette design tool.
Color in Inkscape
Colour in imagemagick
Colorspace conversions are hidden in imagemagick.