Goniochromatic assessment of gray scales
for color change

Melgosa, Manuel

Goniochromatic assessment of gray scales for color change

Posted on 2020-07-20 - 16:40

The dependence of color differences on the illumination and viewing directions for two widely-used gray scales for color change (SDCE and AATCC) was evaluated through measuring the spectral bidirectional reflectance distribution function (BRDF) by a goniospectrophotometer of metrological quality. Large incidence and viewing angles must be specially avoided using these gray scales because in these conditions color differences vary considerably from those established in ISO 105-A02 and ASTM D2616-12. While the visual appearance of the SDCE and AATCC gray scales for color change is similar, our results indicate that their goniochromatic properties are different. Finally, some recommendations regarding observation distance and illumination angle to correctly use these gray scales for visual experiments are given.

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Ferrero, Alejandro; Bernad, Berta; Campos-Acosta, Joaquin; RICHARD, Noël; Fernandez-Maloigne, Christine; Melgosa, Manuel (2020). Goniochromatic assessment of gray scales for color change. Optica Publishing Group. Collection. https://doi.org/10.6084/m9.figshare.c.4935222.v1

https://doi.org/10.6084/m9.figshare.c.4935222.v1

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