白丝美女被狂躁免费视频网站,500av导航大全精品,yw.193.cnc爆乳尤物未满,97se亚洲综合色区,аⅴ天堂中文在线网官网

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

專(zhuān)利號(hào)
US11659131B2
公開(kāi)日期
2023-05-23
申請(qǐng)人
SCREEN HOLDINGS CO., LTD.（JP Kyoto）
發(fā)明人
Kenichi Yokouchi
IPC分類(lèi)
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(shuō)明書(shū)

<1.5 Modified Examples>

Modified examples of the above-described first embodiment will be described. Note that the following first to fifth modified examples can also be applied to second and third embodiments which will be described later.

<1.5.1 First Modified Example>

In the above-described first embodiment, the reference color is selected (Step S140 in FIG. 4) from among the plurality of sample colors on the basis of the square error between the prediction values and the actual measurement values. However, the present invention is not limited to this, and the reference color can also be selected on the basis of the color difference. This will be described below.

In the present modified example, in Step S130 in FIG. 4, obtained is a color difference based on the prediction values obtained in Step S120 and the actual measurement values of the spectral reflectances of the characteristics-acquired gradation value for the prediction target color. Then, in Step S140 in FIG. 4, a sample color from which a minimum color difference is obtained is selected as the reference color.

權(quán)利要求

1
微信群二維碼
意見(jiàn)反饋