公开(公告)号：US11727599B2

公开(公告)日：2023-08-15

申请号：US17028105

申请日：2020-09-22

Applicant: TOPPAN PRINTING CO., LTD.

Inventor： Takaya Tanaka ,  Takashi Inamura ,  Kazuhiro Sano

IPC: G06K9/00 ,  G06T7/90 ,  G06T5/00 ,  G06T7/00

CPC classification number: G06T7/90 ,  G06T5/001 ,  G06T7/0002 ,  G06T2207/10024 ,  G06T2207/30168

Abstract: A color correspondence information generating system includes an object database that stores correspondences between recognition information and color characteristic information about first objects recognized by the recognition information; an object recognition section that recognizes the first objects in the first image from the first image and the recognition information, and outputs image regions of the first objects in the first image and first color characteristic information; and a color correspondence information generation section that generates the color correspondence information using the color information and the first color characteristic information of pixels in the image regions. The color characteristic information and the recognition information have a one-to-one correspondence relation with each other, or the color characteristic information is the recognition information itself.

公开(公告)号：US12086905B2

公开(公告)日：2024-09-10

申请号：US17394911

申请日：2021-08-05

Applicant: TOPPAN PRINTING CO., LTD.

Inventor： Koichi Takase ,  Takashi Inamura ,  Takaya Tanaka

IPC: H04N1/60 ,  G01J3/50 ,  G06F3/048 ,  G06T11/00 ,  G09G5/02 ,  G09G5/06 ,  H04N5/57 ,  H04N9/64 ,  H04N9/69 ,  H04N9/73 ,  H04N23/83

CPC classification number: G06T11/001 ,  H04N1/60

Abstract: A method for generating color conversion information including providing a user with color sample information for determining a color sample of which color characteristic information is known, receiving, from the user, an image including the color sample determined by the color sample information in a lighting environment, and generating color conversion information which corresponds to the lighting environment and is correlated with the user, based on the image and the color characteristic information of the color sample determined by the color sample information. The color conversion information converts between color information and color characteristic information, the color information is information which corresponds to a lighting environment and indicates colors of an object in the lighting environment, and the color characteristic information indicates color characteristics of the object.

公开(公告)号：US09948830B2

公开(公告)日：2018-04-17

申请号：US15171625

申请日：2016-06-02

Applicant: TOPPAN PRINTING CO., LTD.

Inventor： Takashi Inamura ,  Takaya Tanaka

IPC: H04N1/60

CPC classification number: H04N1/605 ,  H04N1/6016 ,  H04N1/603 ,  H04N1/6041

Abstract: A color estimation system provided with a correlation memory unit storing a correlation model that accepts an image or information of image, and outputting an ink-color set that is a color combination of inks used in reproducing the image by printing; and a color combination extracting unit that extracts the ink-color set corresponding to a print image, which is an image to be printed, by providing an input of the print image or image information of the print image to the correlation model. The correlation model is generated by performing machine learning that generates a correlation between the image information and the ink-color set such that the ink-color set is outputted based on the image information, using a reference image of which the ink-color set necessary for a printing is known in advance.

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。