Work Item
ASTM WK84807
New Guide for New spatial and color appearance attributes of gonioapparent materials
1. Scope
understand the complexity of visual appearance of gonio-apparent materials: color, gloss, visual texture (sparkle, graininess), etc.
Keywords
multi-angle spectrophotometer, multi-angle imaging colorimeter, color, sparkle, graininess,; metallic flake, pearlescent flake, diffractive flake, detection, scaling, discrimination, tolerance; indicatrix, specular peak, scattering phase function, anisotropy factor, flake disorientation statistics; total visual appearance difference; BRDF, BSSRDF; measurement geometries, visual and instrumental correlation
Rationale
Establish the optical and visual principles of measuring gonio-apparent colors, with special focus on the new spatial and color appearance atrributes for better qualiy controls for industry, as for instance for sparkle and graininess.
The title and scope are in draft form and are under development within this ASTM Committee.
Work Item Status
Date Initiated: 01-13-2023
Technical Contact: Francisco Verdu
Item: 000
Ballot:
Status: