公开(公告)号：US09275317B2

公开(公告)日：2016-03-01

申请号：US14711568

申请日：2015-05-13

Applicant: Toppan Printing Co., Ltd.

Inventor： Takashi Inamura ,  Tomohiro Horiuchi ,  Takaya Tanaka ,  Koichi Iino

IPC: H04N1/60 ,  G06K15/02 ,  G06K1/00

CPC classification number: G06K15/1878 ,  H04N1/6022 ,  H04N1/603 ,  H04N1/6058

Abstract: A color prediction system includes: database storing absorption/scattering coefficients of each primary color ink; sections for: selecting a spot color ink as a combination of primary color inks that reproduce a colorimetric value of a color sample, reading absorption and scattering coefficients of the primary color inks of a reference spot color from the database, obtaining absorption and scattering coefficients of the spot color ink of a specified formulation ratio, and calculating a spectral reflectance of the spot color ink to be reproduced; obtaining a reproduced color from the spectral reflectance; obtaining a difference from the colorimetric value of the color sample and correcting the formulation ratio to calculate a formulation ratio with an allowable difference; and calculating a Neugebauer primary color of overprinted spot color inks from the absorption and scattering coefficients of the spot color inks calculated at formulation ratios determined by the formulation ratio determination section.

Abstract translation: 颜色预测系统包括：数据库，存储每个原色墨水的吸收/散射系数; 部分：选择专色油墨作为再现颜色样品的比色值的原色油墨的组合，从数据库中读取参考专色的原色油墨的吸收和散射系数，获得吸收和散射系数 指定配方比例的专色墨水，并计算要再现的专色墨水的光谱反射率; 从光谱反射率获得再现的颜色; 获得与色样的比色值的差异，并校正配方比率以计算具有允许差的配方比率; 以及根据由配方比例确定部分确定的配制比计算的专色墨水的吸收和散射系数计算套印的专色油墨的Neugebauer原色。

公开(公告)号：US20150332132A1

公开(公告)日：2015-11-19

申请号：US14711568

申请日：2015-05-13

Applicant: Toppan Printing Co., Ltd.

Inventor： Takashi INAMURA ,  Tomohiro Horiuchi ,  Takaya Tanaka ,  Koichi Iino

IPC: G06K15/02

CPC classification number: G06K15/1878 ,  H04N1/6022 ,  H04N1/603 ,  H04N1/6058

Abstract: A color prediction system includes: database storing absorption/scattering coefficients of each primary color ink; sections for: selecting a spot color ink as a combination of primary color inks that reproduce a colorimetric value of a color sample, reading absorption and scattering coefficients of the primary color inks of a reference spot color from the database, obtaining absorption and scattering coefficients of the spot color ink of a specified formulation ratio, and calculating a spectral reflectance of the spot color ink to be reproduced; obtaining a reproduced color from the spectral reflectance; obtaining a difference from the colorimetric value of the color sample and correcting the formulation ratio to calculate a formulation ratio with an allowable difference; and calculating a Neugebauer primary color of overprinted spot color inks from the absorption and scattering coefficients of the spot color inks calculated at formulation ratios determined by the formulation ratio determination section.

Abstract translation: 颜色预测系统包括：数据库，存储每个原色墨水的吸收/散射系数; 部分：选择专色油墨作为再现颜色样品的比色值的原色油墨的组合，从数据库中读取参考专色的原色油墨的吸收和散射系数，获得吸收和散射系数 指定配方比例的专色墨水，并计算要再现的专色墨水的光谱反射率; 从光谱反射率获得再现的颜色; 获得与色样的比色值的差异，并校正配方比率以计算具有允许差的配方比率; 以及根据由配方比例确定部分确定的配制比计算的专色墨水的吸收和散射系数计算套印的专色油墨的Neugebauer原色。