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An extension to the CAM16 colour appearance model to predict the size effect
Author(s) -
Gao Cheng,
Li Changjun,
Xiao Kaida,
Luo Ming Ronnier,
Pointer Michael R.
Publication year - 2021
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.22618
Subject(s) - chromatic adaptation , cone (formal languages) , object (grammar) , chromatic scale , mathematics , adaptation (eye) , extension (predicate logic) , visual angle , space (punctuation) , computer science , artificial intelligence , computer vision , optics , physics , combinatorics , algorithm , programming language , operating system
Experience and experimental results show that the perceived colour appearance of an object varies with the size of that object or the viewing angle. Based on available visual size‐effect data, it is found that the size effect can be compensated in the CAT16 cone‐like space. Furthermore, it is found that, similar to the von Kries chromatic adaptation, size‐effect correction can be operated independently on the different cone channels. Hence, the size effect can be easily built into the CAM16 model to predict the colour appearance for stimuli of varying sizes.