Presented at the 1989 ISCC Williamsburg Conference on Color Discrimination Psychophysics, Williamsburg, Virginia, November 28–December 1, 1989.
Correlation between visual and instrumental colour differences of metallic paint films†
Article first published online: 13 MAR 2007
Copyright © 1990 Wiley Periodicals, Inc., A Wiley Company
Color Research & Application
Volume 15, Issue 4, pages 200–205, August 1990
How to Cite
Saris, H. J. A., Gottenbos, R. J. B. and Van Houwelingen, H. (1990), Correlation between visual and instrumental colour differences of metallic paint films. Color Res. Appl., 15: 200–205. doi: 10.1002/col.5080150405
- Issue published online: 13 MAR 2007
- Article first published online: 13 MAR 2007
- Manuscript Accepted: 22 MAR 1990
- Manuscript Received: 1 DEC 1989
Because of the importance of metallic paints particularly in the automobile industry, there is a need for colour measurement techniques which show a high correlation with visual judgments. The present study uses recently developed spectrophotometers with variable geometries to optimize this correlation. Visual and instrumental data have been analyzed by means of statistical techniques. The investigations have led to the conclusion that three different geometries are sufficient to describe the optical behaviour of metallic paint films, provided that the geometries are well distributed with respect to the angle between the direction of observation and the direction of the specular component. In addition to this measurement technique a calculation procedure has been developed that yields judgments that highly correlate with visual judgments.