Instrument Dependency of Kubelka-Munk Theory in Computer Color Matching

Different industries are usually faced with computer color matching as an important problem. The most famous formula, which is commonly used for recipe prediction is based on the Kubelka-Munk (K-M) theory. Considering that spectrophotometer’s geometry and its situation influence the measured spectral values, the performance of this method can be affected by the instrument. In the present study, three spectrophotometer geometries including 45/0, d/8 with specular component included mode and d/8 with specular component excluded mode were compared in the case of recipe prediction of textile samples using K-M theory. Comparing the applied measuring situations, the color matching results obtained from d/8 geometry in SCE mode were far better than the others, while 45/0 geometry gives inferior performance which may be caused by the textured surface of textile fabrics. Prog. Color Colorants Coat. 5(2012), 85-90. © Institute for Color Science and Technology.