Image processing apparatus, image processing method, and non-transitory computer-readable storage medium

An image processing method comprising:

• acquiring an input image including a target object;
• and
• generating, based on the input image, print data representing the presence/absence of application of an ink droplet from a print unit,
• wherein the print unit includes a first print element array and a second print element array in each of which print elements each for applying an ink droplet are arrayed, and reciprocally scans in a first direction and a second direction reverse to the first direction, and
• the print data is generated so that
• a first edge region of the target object where a ratio of pixels printed by at least one print element included in the first print element array to a plurality of pixels included in the first edge region is lower than a ratio of pixels printed by at least one print element included in the second print element array is a region contacting a boundary at which the object changes to a margin region of a print medium when viewed in the first direction, and
• a second edge region of the target object where a ratio of pixels printed by at least one print element included in the second print element array to a plurality of pixels included in the second edge region is lower than a ratio of pixels printed by at least one print element included in the first print element array is a region contacting a boundary at which the object changes to the margin region of the print medium when viewed in the second direction.

A non-transitory computer-readable storage medium storing a computer program for causing a computer to function as:

• an acquisition unit configured to acquire an input image including a target object;
• and
• a generation unit configured to generate, based on the input image, print data representing the presence/absence of application of an ink droplet from a print unit,
• wherein the print unit includes a first print element array and a second print element array in each of which print elements each for applying an ink droplet are arrayed, and reciprocally scans in a first direction and a second direction reverse to the first direction, and
• the generation unit generates the print data so that
• a first edge region of the target object where a ratio of pixels printed by at least one print element included in the first print element array to a plurality of pixels included in the first edge region is lower than a ratio of pixels printed by at least one print element included in the second print element array is a region contacting a boundary at which the object changes to a margin region of a print medium when viewed in the first direction, and
• a second edge region of the target object where a ratio of pixels printed by at least one print element included in the second print element array to a plurality of pixels included in the second edge region is lower than a ratio of pixels printed by at least one print element included in the first print element array is a region contacting a boundary at which the object changes to the margin region of the print medium when viewed in the second direction.