Patent ID: 8733874
Filing Date: 2014-05-27
Classification: B41J

Abstract:
1. An image processing apparatus that performs processing for printing an image on a unit area of a print medium, the printing being performed by (i) carrying out at least one relative scan of a print head provided with a plurality of nozzle arrays that apply ink of a same color to the unit area of the print medium, each of the plurality of nozzle arrays having an ejection characteristic, and (ii) applying the ink to the unit area by the plurality of nozzle arrays of the print head during the at least one relative scan, said apparatus comprising: an acquisition unit configured to acquire multi-valued image data corresponding to the unit area; an obtaining unit configured to obtain contribution ratios for each of the plurality of nozzle arrays in the printing of the unit area; and a correction unit configured to correct the multi-valued image data for reducing a density difference depending on the ejection characteristic of each of the plurality of nozzle arrays, based on a plurality of density correction data, which is obtained for each of the plurality of nozzle arrays, and the contribution ratios.