Investigating the effect of texture on the performance of color difference formulae

• Published in: Color research and application 2010-04, Vol.35 (2), p.94-100
• Main Authors: Kandi, S. Gorji, Tehran, M. Amani
• Format: Article
• Language: English
• Subjects: Assessments; BFD; CIE94; CIEDE2000; CIELAB; CMC; Color; color difference formula; Fabrics; Observers; Surface layer; textile; Textiles; Texture; Visual
• ISSN: 0361-2317; 1520-6378
• DOI: 10.1002/col.20555

To predict the perceived color differences, the effect of the surface texture on the performance of the color difference formulae was investigated. To this end, knitted polyester fabrics with eight different textures were prepared. The fabrics were dyed by seven dyestuffs in five different depths. The selected pairs from the five samples with different depths in each hue covered small to large color differences. The assessed pair of samples had the same texture and hue, but different depths. A panel of 23 observers assessed the color differences of the pairs by gray scale method. The results showed that for the textile samples with different texture structures, the CIEDE2000 (2:1:1) performed the best followed by CMC (2:1:1), CIE94 (2:1:1), and CIELAB with approximately same performance. In addition, the magnitude of color difference influenced the ability of the formulae to predict the visual assessments and the best performance obtained for medium color differences. The comparison between eight different texture groups indicated that the texture structures of the pairs significantly affected the performance of the color difference formulae. For instance, the PF/3 measures obtained for the eight texture groups by CIEDE2000 (2:1:1) color formula could be varied between 21.98 and 33.37 PF/3 units. © 2009 Wiley Periodicals, Inc., Col Res Appl, 2010.