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

A method executed by an image processing apparatus, comprising:

• performing quantization processing based on image data including an object;
• and
• performing processing of arranging a dot in a pixel using a dot arrangement pattern corresponding to a quantization value having undergone the quantization processing,
• wherein a print unit provided in the image processing apparatus and configured to be able to print dots at a resolution higher than a resolution of image data includes a first print unit configured to be able to print a dot in a first region of each pixel of the object, and a second print unit configured to be able to print a dot in a second region of each pixel of the object, and
• as a result of the processing in the dot arrangement, in first edge pixels in a first edge portion of the object, a ratio of arranging dots in the second regions is lower than a ratio of arranging dots in the first regions, and in second edge pixels in a second edge portion different from the first edge portion of the object, a ratio of arranging dots in the first regions is lower than a ratio of arranging dots in the second regions.

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

• perform quantization processing based on image data including an object;
• and
• perform processing of arranging a dot in a pixel using a dot arrangement pattern corresponding to a quantization value having undergone the quantization processing
• wherein a print unit configured to be able to print dots at a resolution higher than a resolution of image data includes a first print unit configured to be able to print a dot in a first region of each pixel of the object, and a second print unit configured to be able to print a dot in a second region of each pixel of the object, and
• as a result of the processing in the dot arrangement, in first edge pixels in a first edge portion of the object, a ratio of arranging dots in the second regions is lower than a ratio of arranging dots in the first regions, and in second edge pixels in a second edge portion different from the first edge portion of the object, a ratio of arranging dots in the first regions is lower than a ratio of arranging dots in the second regions.

An image processing apparatus comprising:

• an acquisition unit configured to acquire image data including an object;
• a detection unit configured to detect, from the image data acquired by the acquisition unit, first edge pixels in a first edge portion of the object and second edge pixels in a second edge portion different from the first edge portion;
• and
• a print unit configured to be able to print dots at a resolution higher than a resolution of the image data acquired by the acquisition unit,
• wherein the print unit includes a first print unit configured to be able to print a dot in a first region of each pixel of the object, and a second print unit configured to be able to print a dot in a second region of each pixel of the object,
• the detection unit detects the first edge pixels and the second edge pixels by pattern matching by using a filter and a lookup table, and
• each of the first edge pixel and the second edge pixel is detected in at least one of a nozzle array direction of the print unit and a scanning direction of the print unit different from the nozzle array direction.