Color printer calibration correcting for local printer non-linearities

摘要

A color printer calibration method for improving printer accuracy in regions of local non-linearity includes the steps of: a) starting with filled rectangular array of color mappings A0 mapping printer signals to device independent color space signals; b) empirically deriving a set of color mappings Pi in an area of interest; c) using a set of planes defined by the color mappings of A0, and the set of empirically derived color mappings Pi, identifying a new set of planes such that each point defined by A0 and each point defined by Pi is located at the intersection of three planes, the intersection points of this expanded number of planes defining a set of points Pi(expanded) that define a full rectangular array A1 of mappings including mappings A0, mappings Pi and mappings Pi(expanded); d) storing the mapping A1 for use in the creation of a new color space transformation LUT for use with the printer.