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The Concept of Colourfulness and its Use for Deriving Grids for Assessing Colour Appearance
Author(s) -
Pointer M. R.
Publication year - 1980
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.5080050212
Subject(s) - chromaticity , luminance , hue , adaptation (eye) , set (abstract data type) , mathematics , computer science , artificial intelligence , optics , statistics , pattern recognition (psychology) , physics , programming language
A technique of subjective magnitude estimation has been used to assess a set of pseudosurface colours, each having a luminance factor of 0.2. Three adaptation conditions corresponding to daylights D 65 and D 50 and tungsten light S A were used. The experimental technique and data analysis represent an improvement on that previously reported. The concept of colourfulness, as opposed to chroma or saturation, has been introduced with considerable success. The loci of constant hue and colourfulness were derived in u',v' chromaticity space and the results compared with predictions obtained using the Bartleson adaptation equations.