It is already known that the coordinate of the non-chromatic stimulus point in the chromaticity diagram
Inside every CIE u'v' chromaticity diagram, there is a thin black line delimiting the area occupied by all the NCS tiles.
The psychophysical characteristics of CIE L*u*v* space and of the CIE u'v' chromaticity diagram facilitate establishing relations between that subset and purer stimuli because, contrary to what occurs in CIE [L.
We fully agree that chromatic contributions (likely from the opponent channels) have the potential to lead to different perceptions of brightness at different locations in the chromaticity diagram
, even along the blackbody locus.
00]) in relation to the motif (standard) were determined and CIE chromaticity diagrams
were made (Luo et al.
In terms of the chromaticity diagram
, an increase in the blue to yellow ratio means a shift toward the "blue" corner of the diagram.
Two conclusions can be drawn, taking into account the position occupied by the NCS colour area in the chromaticity diagram
Then we calculated the distance differences of all the data on u-v chromaticity diagram
In 1931, the Committee Internationale de l'Eclairage (CIE) agreed on a reference chromaticity diagram
which is based on the matching characteristics of a standard observer (48,49) and theoretical primary colours which, when mixed in equal amounts, produce equal energy white.
2001) for: object (standard colour table)--the shot photograph, shot photographs--edited photographs, object (standard colour table) edited photographs and CIE ab chromaticity diagrams
00]) (Luo, 2001) through the different phases of the system in relation to the motive (colour table) were determined and ab CIE chromaticity diagrams
Designed for measurements in the 380- to 780-nm spectral range with 5 to 10 nm resolution, the IL RPS-380 includes Windows-compatible software with CIE chromaticity diagrams
, dominant wavelength, and photopic weighting calculations.