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AssigneeCanon Kabushiki Kaisha
InventorsRyosuke Otani, Hisashi Ishikawa
Estimating the term…
To implement non-ejection complementation processing while securing a chance for a nozzle in which an ejection failure has occurred to recover as a normal nozzle. Positional information for specifying an abnormal nozzle in which an ejection failure has occurred among a plurality of nozzles arrayed in a nozzle column is acquired and based on the positional information, input image data is converted into halftone image data. At this time, at least part of densities that are assumed to be obtained by a pixel line of the abnormal nozzle are distributed to pixels on a pixel line of a neighboring nozzle that is located in close proximity to the abnormal nozzle and in which no ejection failure has occurred so that in the halftone image data, at least in part of tones, the pixel on the pixel line of the abnormal nozzle has a density.
An image processing apparatus that generates halftone image data used by an image forming apparatus that forms an image on a printing medium by a print head including a nozzle column in which a plurality of nozzles is arrayed ejecting ink from the nozzles while relatively moving the printing medium in a direction perpendicular to the nozzle column, the image processing apparatus comprising:
An image forming system that forms an image on a printing medium by a print head including a nozzle column in which a plurality of nozzles is arrayed ejecting ink from the nozzles while relatively moving the printing medium in a direction perpendicular to the nozzle column, the image forming system comprising:
An image processing method of generating halftone image data used by an image forming apparatus that forms an image on a printing medium by a print head including a nozzle column in which a plurality of nozzles is arrayed ejecting ink from the nozzles while relatively moving the printing medium in a direction perpendicular to the nozzle column, the image processing method comprising the steps of:
A non-transitory computer-readable storage medium storing a program for causing a computer to perform an image processing method of generating halftone image data used by an image forming apparatus that forms an image on a printing medium by a print head including a nozzle column in which a plurality of nozzles is arrayed ejecting ink from the nozzles while relatively moving the printing medium in a direction perpendicular to the nozzle column, the image processing method comprising the steps of:
Dependencies are inferred from the claim text.