CIECAM02 and its recent developments

Abstract

The development of colorimetry can be divided into three stages: colour specification, colour difference evaluation and colour appearance modelling. Stage 1 considers the communication of colour information by numbers. The second stage is colour difference evaluation. While the CIE system has been successfully applied for over 80 years, it can only be used under quite limited viewing conditions, e.g., daylight illuminant, high luminance level, and some standardised viewing/illuminating geometries. However, with recent demands on crossmedia colour reproduction, e.g., to match the appearance of a colour or an image on a display to that on hard copy paper, conventional colorimetry is becoming insufficient. It requires a colour appearance model capable of predicting colour appearance across a wide range of viewing conditions so that colour appearance modelling becomes the third stage of colorimetry. Some call this as advanced colorimetry. This chapter will focused on the recent developments based on CIECAM02.