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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

FIG. 15 shows results of a prediction test for 25 colors in a case in which only the gradation value of 0.5 is the characteristics-acquired gradation value. From FIG. 15, it is seen that the method of the above-described first embodiment significantly increases the overall prediction accuracy as compared with the conventional method. Moreover, from FIG. 15, it is seen that the method of the second embodiment significantly increases the prediction accuracy of the special reflectances of the gradation values in the vicinity of the characteristics-acquired gradation value as compared with the method of the above-described first embodiment.

<3. Third Embodiment>

<3.1 Outline>

權(quán)利要求

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