Patent Document ID: 9694598
Application ID: 12966799
Patent Status: 1

Claim One:
1. An image processing apparatus that generates image data for printing an image by ejecting plural colors of ink from a plurality of nozzles, for each of a plurality of areas on a print medium, said apparatus comprising: an acquiring unit configured to acquire information on respective ejection amounts by nozzle groups respectively corresponding to the plurality of areas, for each of the plural colors of ink having different colors and different light absorption characteristics on the print medium; a selecting unit configured to select a correction parameter for generating the image data in response to an input of data having a plurality of color components of different colors from among a plurality of correction parameters that correspond to combinations of the information on respective ejection amounts for the respective plural colors of ink and are retained in a memory, according to a combination of the acquired information on respective ejection amounts for the respective plural colors of ink, for each of the plurality of areas, wherein each of the plurality of correction parameters defines a correspondence relationship between a combination of the plurality of color components in the input data and a combination of a plurality of color components for the image data, and the correction parameter for each of the plurality of areas is used for correcting a color indicated by the input data and selected so that a difference of color appearance of colors between the plurality of areas, which is caused by a difference between light absorption characteristics of the ink dots that are formed on the print medium by overlapping a plurality of inks having different colors and light absorption characteristics of the ink dots each of which is formed on the print medium with an ink of single color, is reduced; and a generating unit configured to generate the image data based on the correction parameters selected by the selecting unit.