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

專利號(hào)
US11659131B2
公開日期
2023-05-23
申請(qǐng)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

Note that, in the present embodiment, a prediction target color setting step is achieved by Step S200, a first relational equation calculation step is achieved by Step S210, a first prediction step is achieved by Step S220, a difference value calculation step is achieved by Step S230, a reference color selection step is achieved by Step S240, a union creation step is achieved by Step S250, a third prediction step is achieved by Step S260, a second relational equation calculation step is achieved by Step S270, and a second prediction step is achieved by Step S280 and Step S290. Moreover, a second relational equation using step is achieved by Step S280, and an interpolation step is achieved by Step S290.

<3.3 Effect>

According to the present embodiment, an effect similar to those of the above-described first embodiment and the above-described second embodiment can be obtained. Further, use of the union can suppress the process of the spectral reflectance predictions program 141 from being complicated.

<4. Others>

權(quán)利要求

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