Patent ID: 8103491
Filing Date: 2012-01-24
Classification: B32B,G01J,G01N,G06F

Abstract:
1. A method for matching color and appearance of an object coated with a gonioappearant material specimen containing flake pigments in a solid medium, said method comprising the steps of: (i) acquiring specimen photometric data comprising spectral or colorimetric data of the gonioapparent material specimen being a function of an illumination angle and a reflective scattering angle, wherein said photometric data being obtained by measurements of the gonioapparent material specimen, from previously measured data of the gonioapparent material, or a combination thereof; (ii) selecting one or more preliminary matching formulas from a color database based on the specimen photometric data, said color database contains color formulas associated with photometric data comprising spectral or colorimetric data of gonioapparent materials being a function of an illumination angle and a reflective scattering angle, and refractive indexes of solid media of the gonioapparent materials; (iii) generating a matching bidirectional reflectance distribution function (BRDF) for at least one of said preliminary matching formulas, said matching BRDF is generated by a BRDF process comprising the following steps in any appropriate order: (iv) producing R,G,B values based on said BRDF, and optionally, shapes of the object or a portion thereof; and (v) producing a matching visual display based on said R,G,B values and displaying said matching visual display on one or more display media.