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Sensitivity differences in Chroma, Hue, and Lightness from several classical threshold datasets
Author(s) -
Melgosa M.,
Hita E.,
Pérez M. M.,
El Moraghi A.
Publication year - 1995
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.5080200404
Subject(s) - hue , lightness , normalization (sociology) , mathematics , weighting , aperture (computer memory) , color difference , sensitivity (control systems) , optics , colour difference , artificial intelligence , statistics , physics , computer science , enhanced data rates for gsm evolution , electronic engineering , sociology , anthropology , acoustics , engineering
A check of the weighting functions proposed by the CIE Technical Committee 1‐29 (TC1‐29) [Color Res. Appl. 18 , 137–139 (1993)] has been carried out using pairs of samples with only a threshold difference in chroma, hue, or lightness. Experimental results with object and aperture colors were used and some parametric factors can be appointed: the dependence of ΔC* on C* appears to be about two times stronger for related color versus the aperture color mode; and the ΔH* dependence on C*, weak but significant for related colors, becomes insignificant for aperture colors. the hue‐angle dependences of ΔH* after correction for C* and the dependences of ΔL* on L* or C* are found not significant for aperture colors. After normalization of the five different datasets employed, the results achieved are in overall good agreement and support the proposal of the CIE TC1‐29.