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Quantifying colour appearance. part III. Supplementary LUTCHI colour appearance data
Author(s) -
Luo M. Ronnier,
Gao X. Wang,
Rhodes Peter A.,
Xin H. John,
Clarke Anthony A.,
Scrivener Stephen A. R.
Publication year - 1993
Publication title -
color research and application
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.393
H-Index - 62
eISSN - 1520-6378
pISSN - 0361-2317
DOI - 10.1002/col.5080180207
Subject(s) - luminance , hue , lightness , brightness , observer (physics) , artificial intelligence , mathematics , colour difference , range (aeronautics) , computer science , computer vision , pattern recognition (psychology) , optics , physics , materials science , quantum mechanics , composite material
The experimental data from this study supplements the LUTCHI Colour Appearance Data as described in Part I of this paper. Two further experiments were carried out: one was to check conflicting results found previously, and another was to extend the range of luminance conditions used earlier. In addition, a brightness attribute was added to the original lightness, colourfulness, and hue scales for colour assessment. Experiment I results verified the uncertainties found previously in the comparison between luminous and nonluminous colours, and between the grey background results with and without a white border. Experiment II results revealed the changes in four perceived attributes under six quite different adapting luminances. The results were then used to test five uniform colour spaces and colour‐appearance models used in Part II of this paper. Hunt's 91 model gave more accurate predictions of the experimental visual results, in comparison with the other spaces and models. Its predictive error for all attributes studied is within the accuracy of the typical observer.