| 主权项 |
1. An image recording apparatus configured to record an image, the image recording apparatus comprising:
a recording head comprising a plurality of nozzles in a nozzle row for ejecting ink arrayed in an array direction; a scanning unit configured to cause the recording head to relatively scan a unit area on a recording medium a plurality of times, in a scanning direction that intersects with the array direction; a conveying unit configured to convey the recording medium, in a conveying direction that intersects with the scanning direction, by a distance corresponding to a length of each of a plurality of nozzle groups along the array direction, in an interval of the plurality of times the recording head is caused to scan by the scanning unit, the nozzle groups formed by dividing the plurality of nozzles along the array direction; a generating unit configured to generate recording data, used to eject ink from each of the plurality of nozzle groups during each of the plurality of times of the scan on the unit area, from image data corresponding to the unit area on the basis of a plurality of mask patterns corresponding to the respective times of the scans, the plurality of mask patterns corresponding to the plurality of nozzle groups, the plurality of mask patterns each including a recording permitted pixel that permits recording and a recording non-permitted pixel that does not permit recording; and a controlling unit configured to control the ink to be ejected onto the unit area from the recording head on the basis of the recording data, wherein, in a case in which a recording permitted pixel group formed by a plurality of adjacently disposed recording permitted pixels and a recording permitted pixel that is not adjacent to any other recording permitted pixel each form a single unit in a mask pattern, an average of the numbers of the recording permitted pixels in the unit in a first area of a predetermined mask pattern among the plurality of mask patterns is less than an average of the numbers of the recording permitted pixels in the unit in a second area, the second area located at an end side of the predetermined mask pattern along a direction corresponding to the array direction of the predetermined mask pattern and having the same size as the first area along the direction corresponding to the array direction. |
