A method to quantify gamut on various ink-jet media and ink sets is described. The robustness of the interpolation to the reduction of data points in the hue direction is demonstrated. The influence of the spectral measurement geometry on the gamut has to be taken into account when colour appearance is compared on samples with different surface finish.A known effect of humidity on ink-jet prints is lateral dye diffusion, bleeding of coloured lines into white or other full colour areas and a darkening of the print. A quantitative description of this effect must be based on a carefully chosen test pattern.
R. Hofmann, E. Baumann, M. Schaer, "Print Performance Evaluation of Ink-jet Media: Gamut, Drying, Permanence" in Proc. IS&T Int'l Conf. on Digital Printing Technologies (NIP15), 1999, pp 408 - 411, https://doi.org/10.2352/ISSN.2169-4451.1999.15.1.art00010_2