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Method and computer program product for predicting spectral characteristics of ink applied to a base material

專利號
US11659131B2
公開日期
2023-05-23
申請人
SCREEN HOLDINGS CO., LTD.（JP Kyoto）
發(fā)明人
Kenichi Yokouchi
IPC分類
H04N1/60; H04N1/54
技術(shù)領(lǐng)域
gradation,spectral,prediction,value,color,relational,values,equation,target,obtained
地域： Kyoto

摘要

First relational equations which represent characteristics of respective sample colors are obtained, and for the respective sample colors, prediction values of spectral characteristics of characteristics-acquired gradation values for a prediction target color are obtained using the first relational equations. Difference values between the prediction values and actual measurement values are obtained, and a sample color for which a minimum difference value is obtained is selected as a reference color. A second relational equation that represents characteristics of the reference color is obtained, and a prediction value of spectral characteristics of a prediction target gradation value for the prediction target color is obtained using the second relational equation.

說明書

a second relational equation calculation step of, with the maximum gradation value or the characteristic-acquired gradation value being taken as a reference gradation value, and with a gradation value for which spectral characteristics are obtained regarding the reference color or the characteristics-acquired gradation value being taken as a process target gradation value, obtaining a second relational equation that represents a relationship between spectral characteristics of the reference gradation value and spectral characteristics of the process target gradation value for the reference color; and

a second prediction step of, using the second relational equation, obtaining prediction values of spectral characteristics of a prediction target gradation value for the prediction target color.

權(quán)利要求

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