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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 spectral reflectances prediction program 141 for performing the spectral reflectances prediction process is stored in the auxiliary storage device 14. The spectral reflectances prediction program 141 is provided by being stored in a computer readable recording medium such as a CD-ROM or a DVD-ROM. That is, a user purchases, for example, an optical disk (CD-ROM, DVD-ROM, etc.) 170 as a recording medium for the spectral reflectances prediction program 141, mounts the optical disk 170 on the optical disk drive 17, reads the spectral reflectances prediction program 141 from the optical disk 170, and installs the read program in the auxiliary storage device 14. Alternatively, the spectral reflectances prediction program 141 sent through the communication line CL may be received by the network interface unit 18 and installed in the auxiliary storage device 14.

<1.3 Spectral Reflectances Prediction Method (Spectral Characteristics Prediction Method)>

A description will be given below of the spectral reflectances prediction process that achieves a spectral reflectances prediction method (spectral characteristics prediction method) according to the present embodiment. Note that this spectral reflectances prediction process is performed in such a manner that a spectral reflectances prediction program 141 executed by the print data generation apparatus 100.

權(quán)利要求

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