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Proceedings Paper

Application of digital color image analysis for colorimetric quality evaluation of surface defects on paint coatings
Author(s): Carsten Steckert; Klaus Witt
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Paper Abstract

A method for the quality management of paint producers was developed that allows for an objective description of inhomogeneous fading of paint coatings after free weathering using relevant metric quantities such as color contrast, gradient of color contrast, and geometric features of the inhomogeneous structures. These may be quantified with the method of digital color image analysis. The first step to apply this technique means a systematic investigation of the color transformation properties specific of the selected input/output devices used for digital imaging. To build a color management system mathematical models of the color transformation processes were optimized and embedded in a commercial color image analysis software. The needed metric parameters, that evaluate the damages on the coated surfaces, must be deduced for highest possible agreement with visual judgements of experts on the categorization of the damages. 150 samples of paint coatings after weathering were selected to investigate this correlation.

Paper Details

Date Published: 21 December 2000
PDF: 11 pages
Proc. SPIE 4300, Color Imaging: Device-Independent Color, Color Hardcopy, and Graphic Arts VI, (21 December 2000); doi: 10.1117/12.410808
Show Author Affiliations
Carsten Steckert, Federal Institute for Materials Research and Testing (Germany)
Klaus Witt, Federal Institute for Materials Research and Testing (Germany)


Published in SPIE Proceedings Vol. 4300:
Color Imaging: Device-Independent Color, Color Hardcopy, and Graphic Arts VI
Reiner Eschbach; Gabriel G. Marcu, Editor(s)

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