Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
October 31, 2006
Patent Application Number
10654688
Date Filed
September 4, 2003
Patent Primary Examiner
Patent abstract
A multilevel printing process can be calibrated by: measuring a small number of recorded patches obtaining data points characterising the printing process, modeling a gradation of the printing process with a model curve incorporating different gradation behaviour of the printing process in different regimes based upon the obtained data points, and using the model curve to obtain a gradation-correction curve for calibrating the printing process, where it is sufficient to use only patches obtained by filling every pixel in a patch with a same recording level.
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