USING A STANDARD GREY SCALE FOR COLOUR CHANGE IN A MULTI-ANGLE COLOUR-ASSESSMENT

USING A STANDARD GREY SCALE FOR COLOUR CHANGE IN A MULTI-ANGLE COLOUR-ASSESSMENT

Commission Internationale de L'Eclairage, 09/01/2016

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Details

We performed 3 independent spectroradiometric measurements of the 9 colour pairs in the grey scale of the Society of Dyers and Colourist (SDC) at 6 different viewing angles, as provided by a byko-spectra multi-angle colour assessment cabinet. On the average, the CIELAB colour differences of these colour pairs showed a variability with viewing angle 4 times higher than the variability associated to the 3 independent measurements. BRDF measurements of the samples in the SDC grey scale confirmed their goniochromatism, which is not identical to the one shown by the samples in the grey scale of the American Association of Textiles Chemists and Colorists (AATCC). A pseudo-divergence bidimensional representation confirmed the results found for the two grey scales. We conclude that the viewing angle is a relevant parameter in the colour differences of colour pairs of commercial grey scales placed in multi-angle colour cabinets.

Additional Info

Author Commission Internationale de L'Eclairage / International Commission on Illumination / Internationale Beleuchtungskommission (CIE)
Published by CIE
Document type Proceeding
Theme /subgroups/16862
Number of pages 8
Keyword USING A STANDARD GREY SCALE FOR COLOUR CHANGE IN A MULTI-ANGLE COLOUR-ASSESSMENT CABINET (PO14, Pages 287-294)