Testing colour appearance models for unrelated colour

Recentiy, researchers in colour science have paid much attention to colour appearance. As the computer-controlled monitors and colour devices for input and output are developing quickly, many industries, such as printing, dyeing, painting, illuminating, imaging, etc., aim at reproducting colours with high accuracy in different media. There is an urgent necessity to effectively transfer colour information to different customers, but colorimetry based on the CIE system cannot give absolute magnitudes of human colour perceptions under different viewing conditions, which include different lighting sources, illuminance levels and backgrounds.The difficulties in colour appearance research are: all colours are affected by physical means including their spatial properties (size, shape, location in visual field and surface structure), temporal properties (steady state, moving, pulsing) and radiant power distributions; sometimes, the observer’s awareness, which includes attention, memory, motivation and emotion,