Color calibration for digital halftoning
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United States of America Patent
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Aug 20, 2002
Issued Date -
N/A
app pub date -
Jan 7, 2000
filing date -
Nov 29, 1999
priority date (Note) -
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Abstract
The present invention provides methods and systems for halftone-algorithm independent calibration of a digital color printer to accurately predict the optical characteristic of color patches printed in the color printer. The present invention is based on 2-by-2 centering patterns where all dots printed are located at intersections of superimposable, virtual grid or coordinate. The present invention provides a further manipulation of the 2-by-2 patterns, which effectively considers the optical scattering in a printing medium. This consideration results in a printer model which possesses higher accuracy in predicting colors of halftone prints.
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