Patent ID: 8810857

Claim:
A method for gray balance correction of a target printing process, the method comprising the following steps: determining first color values on or in surroundings of a gray axis of a color space of a reference printing process for the reference printing process; determining chromatic tonal values of the target printing process by using the first color values and at least describing a corrected gray balance of the target printing process with the tonal values; determining second color values of the target printing process describing the corrected gray balance of the target printing process; deriving the second color values from the first color values; determining first characterization data of the target printing process; determining the tonal values of the target printing process corresponding to the second color values from the first characterization data and the second color values; at least one of creating, from the tonal values, a correction function describing a corrected assignment of color values to tonal values or first tonal values to corrected tonal values of the target printing process in accordance with the corrected gray balance, or determining corrected characterization data including the corrected gray balance from the tonal values; producing at least one printing form based on a corrected assignment of the tonal value assignment according to the corrected gray balance; and imaging a printing material using the printing form.