US 12,231,607 B2
Image processing apparatus for performing gradation correction, image forming system, image processing method, and storage medium
Akiho Watanabe, Kanagawa (JP); Hiroyoshi Ishizaki, Kanagawa (JP); Kazuki Yoshida, Kanagawa (JP); and Kengo Yamamoto, Kanagawa (JP)
Assigned to Ricoh Company, Ltd., Tokyo (JP)
Appl. No. 18/253,064
Filed by Akiho Watanabe, Kanagawa (JP); Hiroyoshi Ishizaki, Kanagawa (JP); Kazuki Yoshida, Kanagawa (JP); and Kengo Yamamoto, Kanagawa (JP)
PCT Filed Dec. 2, 2021, PCT No. PCT/IB2021/061202
§ 371(c)(1), (2) Date May 16, 2023,
PCT Pub. No. WO2022/157570, PCT Pub. Date Jul. 28, 2022.
Claims priority of application No. 2021-008701 (JP), filed on Jan. 22, 2021.
Prior Publication US 2024/0022677 A1, Jan. 18, 2024
Int. Cl. H04N 1/60 (2006.01); G06F 3/12 (2006.01); G06T 7/00 (2017.01); G06T 7/90 (2017.01)
CPC H04N 1/6027 (2013.01) [G06F 3/1208 (2013.01); G06F 3/1256 (2013.01); G06T 7/0002 (2013.01); G06T 7/90 (2017.01); G06T 2207/30168 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An image processing apparatus comprising:
processing circuitry configured to,
determine a gamma correction amount of gradation of image data in a print job to be subsequently printed based on a read image obtained by reading sheets that are equal to or less than a desired number of sheets as a print processing result of the print job;
generate color difference information and correction gamma information based on the read image, the color difference information indicating a color difference between a print color and a reference color, the correction gamma information indicating the gamma correction amount;
set the color difference information and the correction gamma information such that the color difference information and the correction gamma information are applied to a correction of a gradation of the image data to be printed for another desired number of sheets; and
display at least one display component which indicates the gamma correction amount while the print job is being processed, and changes in accordance with a magnitude of the gamma correction amount.