US 12,333,764 B2
Color adjustment apparatus used for color matching between image capturing apparatuses, color adjustment method, and storage medium storing color adjustment program
Masaharu Yamagishi, Kanagawa (JP)
Assigned to Canon Kabushiki Kaisha, Tokyo (JP)
Filed by CANON KABUSHIKI KAISHA, Tokyo (JP)
Filed on May 25, 2023, as Appl. No. 18/324,100.
Claims priority of application No. 2022-101219 (JP), filed on Jun. 23, 2022.
Prior Publication US 2023/0419548 A1, Dec. 28, 2023
Int. Cl. G06T 7/90 (2017.01); H04N 17/00 (2006.01); H04N 17/02 (2006.01); H04N 23/84 (2023.01)
CPC G06T 7/90 (2017.01) [H04N 17/002 (2013.01); H04N 17/02 (2013.01); H04N 23/84 (2023.01); G06T 2207/10024 (2013.01); G06T 2207/20092 (2013.01); G06T 2207/20212 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A color adjustment apparatus comprising:
a memory device that stores a set of instructions; and
at least one processor that executes the set of instructions to:
obtain a first captured image by capturing a color chart for color matching including patches with a first image capturing apparatus serving as a reference;
obtain a second captured image obtained by capturing the color chart with a second image capturing apparatus serving as a correction target;
obtain correction information for the color matching;
generate a third captured image by applying the correction information to the second captured image;
output color difference signals of the first captured image and color difference signals of the third captured image; and
generate first and second images, the first image being generated based on the color difference signals of the first captured image and first positional information indicating areas corresponding to the patches in the color chart of the first captured image by extracting the area indicated by the first positional information from the first captured image, and the second image being generated based on the color difference signals of the third captured image and second positional information indicating areas corresponding to the patches in the color chart of the second captured image by extracting the area indicated by the second positional information from the third captured image.