Testing the Performance of the CIECAM16 for Cross-Media Colour Reproduction Using Real Scene Experiment

Abstract

AbstractThe existing colour appearance models are mainly based on the experiments using colour patches and simple images in a cabinet or on a display, which may have problems in predicting images in real scene. In this study, a real scene experiment was conducted to restore real-world scenario, and study the impact of CCTs and illuminance levels of the lighting conditions on the cross-media colour reproduction. The experiment was conducted in a spectrally tuneable LED lighting room. A total of 48 groups of real scenes were selected, including four CCTs, four illuminance levels and three types of objects. The objects included oil paintings, fruits and vegetables, natural skin tone test charts. The results showed that the colour appearance of real scene and the image on the display were relatively different, especially for low CCT and illuminance level, and the illuminance affected the chromaticity in the case of low illuminance conditions. The contents of scene didn’t show a significate impact. In addition, the prediction of CCT in the CIECAM16 should be revised especially under low illuminance conditions, and there was a big deviation in the prediction of luminance.KeywordsCross-media colour reproductionColour appearance modelReal scene experiment