Patent ID: 9007655
Filing Date: 2015-04-14
Classification: H04N

Abstract:
1. An image processing apparatus that generates print data for performing printing on a print medium using a printing element array in which a plurality of printing elements are arrayed, said apparatus comprising: a correction unit configured to, for each of a plurality of processing units corresponding to a plurality of printing element groups, respectively, which are obtained by dividing a plurality of printing elements in the printing element array and which are used for printing images on different unit areas of the print medium, respectively, correct image data of a pixel, which corresponds to a printing element in a printing element group, according to print characteristics of the printing element in the printing element group; an obtaining unit configured to obtain information about a difference in granularity between unit areas based on print characteristics of the printing elements in the printing element groups corresponding to the unit areas; and a quantizing unit configured to quantize the image data corrected by said correction unit using a quantizing mask, said quantizing unit selecting the quantizing mask used for quantizing the image data for the printing element groups corresponding to the unit areas, based on the information obtained by said obtaining unit, from at least two quantizing masks having different spacial frequency characteristics.