公开(公告)号：US10735627B2

公开(公告)日：2020-08-04

申请号：US16438812

申请日：2019-06-12

Applicant: FUJIFILM Corporation

Inventor： Akito Ohkubo ,  Hirokazu Kondo ,  Hajime Terayoko

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

Abstract: Provided are a color conversion table creation apparatus and method, a color conversion apparatus, and a program capable of further increasing color matching accuracy. A color conversion table creation apparatus includes an image reading unit (30) that acquires read image data of a target printed article, a first color conversion unit (64) that performs color conversion by using a first color conversion table representing a correspondence relationship between a signal value of a first color space obtained from the image reading unit (30) and a chromaticity value of a second color space which is a device-independent color space, an image correlation unit (62) that performs correlation of a positional relationship between the read image data or read chromaticity value image data converted into a chromaticity value and original document image data, and a color conversion table creation unit that creates a second color conversion table representing a multi-dimensional correspondence relationship between a third color space of the original document image data and a second color space on the basis of a correspondence relationship between the original document image data and a chromaticity value of a read image, in which a first printed article which is printed by a printing apparatus (18) on the basis of first image data is read by the image reading unit (30), and thus an output device color conversion table (94A) is created.