US 11,956,405 B2
Information processing apparatus, image forming system, method of controlling total-amount restriction, and non-transitory recording medium
Paru Kondo, Kanagawa (JP)
Assigned to Ricoh Company, Ltd., Tokyo (JP)
Filed by Paru Kondo, Kanagawa (JP)
Filed on Oct. 10, 2022, as Appl. No. 17/963,006.
Claims priority of application No. 2021-174818 (JP), filed on Oct. 26, 2021.
Prior Publication US 2023/0130174 A1, Apr. 27, 2023
Int. Cl. H04N 1/60 (2006.01); G06T 7/90 (2017.01)
CPC H04N 1/6027 (2013.01) [G06T 7/90 (2017.01); H04N 1/6019 (2013.01); H04N 1/605 (2013.01); G06T 2207/10024 (2013.01)] 11 Claims
OG exemplary drawing
 
8. A method of controlling total-amount restriction of color materials, the method comprising:
converting a total-amount restriction value that is input into a value corresponding to a total gradation value;
for each of colors of color materials included in an image forming apparatus, normalizing a gradation value of color information into a value of a color material amount using a gradation value of the color of the color information by using a conversion table indicating a correspondence between gradation values and color material amounts of each of the colors;
performing total-amount restriction on the normalized and converted value of the color material amount of the each of the colors based on the total gradation value; and
performing an inverse normalization on the respective restricted values of the color material amount of the each of the colors, after the total-amount restriction, by using an inverse conversion table corresponding to the conversion table.