Colour Space Conversions.

Adrian Ford and Alan Roberts.

September 1996.

Complied by Alan Roberts (Alan.Roberts@rd.bbc.co.uk) and Adrian Ford (A.M.Ford@westminster.ac.uk) This document may be reproduced and distributed freely, provided that you do not alter it in any way, credit its source and that no charge is made for it.

Contents

• Introduction.
• Some definitions and explanations.
• Gamma and linearity.
• Grassman's Laws of additive colour mixture.
• Tristimuli, Chromaticity, and colorimetric systems
• Computer Graphics Colour Spaces.
• TV and allied non-linear systems.
• Colour appearence.
• Colour Management Systems.
• The references and bedtime reading.
• Footnotes & Disclaimer.