Method and system for predicting print colors

Details Method and system for predicting print colors Method and system for predicting print colors

2011-03-22

2011-03-22

Nguyen, Sang (Department: 2886)

Optics: measuring and testing

By shade or color

Photography

C356S402000, C356S408000, C356S425000

Reexamination Certificate

active

07911613

ABSTRACT:
A colorimeter of a profile generator calorimetrically measures a color chart after elapse of a sufficient period of time from printing of the color chart, thereby producing post-dry-down colorimetric values. The colorimeter also calorimetrically measures certain patches selected from the color chart immediately after printing thereof, thereby producing pre-dry-down calorimetric values. Colorimetric value differences between the post-dry-down colorimetric values and the pre-dry-down colorimetric values are calculated. Using the calorimetric value differences and the post-dry-down calorimetric values, device-dependent data are converted into colorimetric values, which represent pre-dry-down device-independent data. The colors of a print prior to dry-down are predicted based on such converted colorimetric values.

REFERENCES:
patent: 7166422 (2007-01-01), Nakahira et al.
patent: 7543922 (2009-06-01), Kachi
patent: 2004-230793 (2004-08-01), None
patent: 2004-251848 (2004-09-01), None

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