Print calibration system and method

A method comprising:

• receiving data of a plurality of reference values representing a printed output of a printer;
• determining a plurality of Neugebauer Primary area coverage points having an initial set of Neugebauer Primaries based on the plurality of reference values;
• deriving a hue angle and a color space based on the plurality of Neugebauer Primary area coverage points;
• generating a sectional representation of an intersection between a convex hull of the plurality of Neugebauer Primary area coverage points in the color space and a plane extending across the color space at the hue angle;
• determining a plurality of nodes distributed between a first node and a second node of the sectional representation for reproducing a color ramp;
• generating a lookup table based on a relationship between the plurality of nodes and the plurality of Neugebauer Primary area coverage points;
• and
• providing the lookup table to the printer for use in printing.

A non-transitory computer-readable storage medium comprising a set of computer-readable instructions that, when executed by a processor of a printing system cause the processor to:

• cause a plurality of calibration points for reproducing a color ramp to be printed by the printing system;
• receive a plurality of Neugebauer Primary area coverage points having an initial set of Neugebauer Primaries based on the calibration points;
• determine a hue angle and color space based on the plurality of Neugebauer Primary area coverage points;
• generate a sectional representation of a juncture between a convex hull of the plurality of Neugebauer Primary area coverage points and a plane extending across the color space at the hue angle;
• determine a plurality of points distributed between a first point and a second point of the sectional representation;
• generate a plurality of values for an output table based on a relationship between the plurality of points and the plurality of Neugebauer Primary area coverage points for printing on a substrate;
• and
• provide the output table to the printing system for use in printing.