An Analysis of the Influence of Measurement Illuminant Conditions on the Printing Color Appearance

Abstract

There are four different light source conditions of M0, M1, M2 and M3 in the current spectrophotometer, the previous printing color test mainly uses the M0 measurement condition corresponding to illuminant A. In order to explore the suitable color measurement conditions for printing with fluorescent brightener substrate, this article is based on CMC(l:c) color difference, comparing the consistency between M1 and M0 source conditions and visual perception color difference for blue, magenta, yellow, red, green and blue and other representative color prints through subjective evaluation experiments. The results show that the CMC(2:1) color difference of M0 chromaticity does not conform to the visual color difference for the coated paper and the standard observation condition of illuminant D50 commonly used in the printing industry, while the compliance of CMC(2:1) color difference of the M1 chromaticity with visual perception is 67%, which is above the CIEDE2000 color difference with 46% and CIE $L^{*} a^{*} b^{*}$ color difference with 28% on M1 condition.