Implementation of the Mathematical Model for Improving the Inter-instrument Agreement of Spectrocolorimeters

Implementation of the mathematical model for improving the inter-instrument agreement of spectrocolorimeters was analyzed, based on the problems of the model in the practical application, combined with characteristics of spectrocolorimeters in color measurement and spectral properties of surface color. Firstly the selection algorithm of standard specimens is presented based on the influence of standard specimens¿ spectral characteristic to the correct coefficients. Secondly the derivative solution of first-order and second-order derivative of spectral reflectance and the numerical solution of correction coefficients are optimized and evaluated. All of those form an improved implement method of the model. Lastly the implement method is more scientific and reasonable are proven by examples.