公开(公告)号：US20240340385A1

公开(公告)日：2024-10-10

申请号：US18625038

申请日：2024-04-02

Applicant: CANON KABUSHIKI KAISHA

Inventor： YUKIHIRO SHINDO ,  YUKI NAKATANI ,  HIDEKI KUBO ,  OKINORI TSUCHIYA ,  TAKASHI NAKAMURA ,  TOHRU IKEDA ,  HIROMITSU YAMAGUCHI

IPC: H04N1/60 ,  G06T7/90 ,  G06V10/56

CPC classification number: H04N1/6019 ,  G06T7/90 ,  G06V10/56 ,  H04N1/6008 ,  G06T2207/10024

Abstract: Depending on a degree of color degeneracy of colors of an input image after absolute colorimetric mapping, an information processing apparatus synthesizes an absolute colorimetric mapping table and a perceptual mapping table. The information processing system can acquire a first color profile for performing colorimetric color conversion, a second color profile for performing perceptual color conversion, and a parameter for increasing a distance between colors mapped through gamut mapping, and generate, based on the first color profile and the second color profile and the parameter, a third color profile.

公开(公告)号：US20230286288A1

公开(公告)日：2023-09-14

申请号：US18118799

申请日：2023-03-08

Applicant: CANON KABUSHIKI KAISHA

Inventor： YUGO MOCHIZUKI ,  KOUTA MURASAWA ,  HIROMITSU YAMAGUCHI ,  HIDEKI KUBO

IPC: B41J2/21 ,  B41J2/045

CPC classification number: B41J2/2107 ,  B41J2/2103 ,  B41J2/2135 ,  B41J2/0456 ,  B41J2/04541

Abstract: A printing apparatus comprises: a printing unit configured to print an image by applying, onto a printing medium, a first ink containing a fluorescent color material and a second ink containing not fluorescent color material but a resin; a decision unit configured to decide an amount of the second ink applied to a unit area on the printing medium based on an amount of the first ink applied to the unit area and luminescence information representing a luminescence intensity; and a control unit configured to control an application operation of the first ink and the second ink by the printing unit based on the amount of the first ink and the amount of the second ink applied to the unit area.

公开(公告)号：US20220250401A1

公开(公告)日：2022-08-11

申请号：US17592808

申请日：2022-02-04

Applicant: CANON KABUSHIKI KAISHA

Inventor： KOUTA MURASAWA ,  OKINORI TSUCHIYA ,  HIROMITSU YAMAGUCHI ,  HIDEKI KUBO

IPC: B41M3/06 ,  G06K15/10 ,  B41J2/21

Abstract: A printing apparatus comprises a decision unit configured to decide a ratio of ink application amounts of the fluorescent ink and the other ink respectively in each of the plurality of scans. The decision unit decides the ratio of the ink application amount of the fluorescent ink in each of the plurality of scans so that the amount of the coloring material of the fluorescent ink in a surface of an ink layer of the printing medium is less than the amount of the coloring material of the fluorescent ink in an inside of the ink layer of the printing medium.

公开(公告)号：US20220250395A1

公开(公告)日：2022-08-11

申请号：US17667599

申请日：2022-02-09

Applicant: CANON KABUSHIKI KAISHA

Inventor： OKINORI TSUCHIYA ,  KOUTA MURASAWA ,  HIROMITSU YAMAGUCHI ,  HIDEKI KUBO

IPC: B41J2/21 ,  C09D11/322

Abstract: A printing apparatus comprises a determination unit configured to, in a case where fluorescent ink is used in printing of an image, determine an order of printing by the fluorescent ink and printing by the light emission suppressing ink that suppresses light emission of the fluorescent ink, in the plurality of scans. The determination unit determines the order of the printing by the fluorescent ink and the printing by the light emission suppressing ink such that the fluorescent ink is printed to be in a layer lower than the light emission suppressing ink in a region of a dark portion of the image.