Colour Science

I have spent a number of years asking and answering questions regarding to colur, which has led me down many deep rabbit holes. I have come out of those holes with the answers to questions a few questions, and many more questions. Some of the things I can now answer are:

• What are the factors which influence what colour a camera will detect when taking a picture of an object? Why does that differ to what the human eye sees?
• How do you simulate colour blindness from first principles?
• What is the relationship between a spectrum of light and perceived colour?

I created a repository to explore ideas relating to spectra and colour science which includes utilities for converting between spectra and tristimulus colour, rendering to a colour-managed canvas (meaning that you can render a colour from any colour space and it will handle the necessary conversions) and spectrum generation functions.

The tools have allowed me to explore ideas around physically-based hue-linear colour spaces (with mixed success) and the colour paths which result from self-reflection/absorption of a spectrum.These result in a different model for tools like simulating paint mixing and may give rise to unique gamut mapping/colour manipulation techniques.

How do we see colour