Patent ID: 11914319
Assignee: EASTMAN KODAK COMPANY
Field: Optics (Instruments)
Classification: CPC G | IPC G

Claim 0:
1. A digital printing system incorporating in-track position corrections, comprising:
one or more printing subsystems, each printing subsystem including a linear printhead extending in a cross-track direction including an array of light sources for exposing a photosensitive medium;
a data processing system; and
a digital memory for storing a representation of an in-track position correction function, wherein the in-track position correction function is a non-linear function that specifies in-track position corrections to be applied as a function of cross-track position, the in-track position corrections being quantized to integer in-track position corrections, and wherein the representation of the in-track position correction function includes the cross-track positions and transition direction of transitions in the in-track position correction function;
wherein the digital printing system is adapted to print digital images using a printing process that includes:
a) receiving digital image data for a digital image to be printed by the digital imaging system, wherein the digital image includes a plurality of image lines extending in the cross-track direction, each image line being defined by an array of image pixels having pixel values;
b) using the data processing system to determine corrected image lines by resampling the digital image data responsive to the stored representation of the in-track position correction function; and
c) using the data processing system to modify the corrected image lines to provide anti-aliasing pixels at cross-track positions adjacent to the transitions in the in-track position correction function.