US 12,151,495 B2
Image processing apparatus, image processing method, and storage medium
Minako Kato, Kanagawa (JP)
Assigned to CANON KABUSHIKI KAISHA, Tokyo (JP)
Filed by CANON KABUSHIKI KAISHA, Tokyo (JP)
Filed on Apr. 26, 2023, as Appl. No. 18/307,078.
Claims priority of application No. 2022-075989 (JP), filed on May 2, 2022.
Prior Publication US 2023/0347674 A1, Nov. 2, 2023
Int. Cl. B41M 3/06 (2006.01); H04N 1/028 (2006.01); H04N 1/60 (2006.01)
CPC B41M 3/06 (2013.01) [H04N 1/0282 (2013.01); H04N 1/6016 (2013.01)] 8 Claims
OG exemplary drawing
 
1. An image processing apparatus comprising:
one or more processors that are configured:
to obtain image data obtained by optically reading an original image;
to obtain a fluorescence light emission amount obtained by optically detecting a fluorescent color material in the original image;
to estimate, based on the obtained fluorescence light emission amount, a color component attributable to the fluorescent color material in the obtained image data, the color component attributable to the fluorescent color material including a color component of reflected light in the fluorescent color material and a color component caused by emission when the fluorescent color material transitions from an excited state to a ground state;
to separate a color component attributable to a subtractive color mixture color material from the obtained image data by using the estimated color component attributable to the fluorescent color material; and
to output image data obtained by the separation.