Colors are a way of communication that emphasizes the information of a given illustration. Therefore color faithfulness is evident. To know if a given color is within a special color gamut first of all this gamut needs to be known.To calculate the color gamut of a device a number of solutions have been suggested. Most of them are dealing with the fact that they over- or underestimate the real volume of the color gamut, respectively.Our approach applies a grid onto the hull of the color volume. Using this approach a very accurate information about the border is received independently of a convex or non-convex shape. Having got this basic grid information it comes out that a cut at a given L* value can be calculated. Therefore for a given color value a slice of the color gamut can be calculated and the relative position can be obtained.Using this procedure it is also possible to determine the volume of the color gamut.
Andreas Willert, Martin Flaspöhler, Arved Carl Hübler, "Calculating a Color Gamut Border Using a Grid Approach" in Proc. IS&T CGIV 2004 Second European Conf. on Colour in Graphics, Imaging, and Vision, 2004, pp 156 - 160, https://doi.org/10.2352/CGIV.2004.2.1.art00033