INTRODUCTION

CIE TC 1-27 developed the knowledge of hardcopy/softcopy colour appearance matching to the point where a wealth of information was learned, as it was discovered that no one colour appearance model could make a perfect hardcopy/softcopy match under a variety of different viewing conditions. In 2001, the work was passed along to CIE Division 8, where it was embraced by CIE TC 8-01, Colour Appearance Modeling for Colour Management Systems, and led to the development of CIECAM02 [1].

This Technical Report will focus on the following stages of evolutionary development for TC 1-27:

• Publication of the Guidelines in 1994 [2];

• Experimental results of six researchers responding to the published guidelines in 1996 [3];

• Work to sort out why two research groups reporting on hardcopy/softcopy experiments featuring unequal white point chromaticity and equal luminance level conditions across media in 1996 and 1997 [4, 5] led to two different performance rankings for the same colour appearance models [6];

• Work done to study nine different colour appearance models solving the shortcomings of the previous two studies. This work featured unequal white point chromaticity and equal luminance level conditions across viewing conditions;

• Work done to study nine different colour appearance models solving the shortcomings of the previous two studies. This work featured unequal white point chromaticity and unequal luminance level conditions across viewing conditions;

• Final recommendation to hand off the work to CIE Division 8 for completion.