Back to results
US 2026/0084436 A1Published application
Image processing apparatus
AssigneeCanon Kabushiki Kaisha
InventorsDAISUKE KOBAYASHI, FUMIKO SUZUKI
Life of this patent
Estimating the term…
Abstract
As a result of the processing by the dot arrangement unit, dots are arranged so that in a first edge pixel group located in a first end portion of the object in the scanning direction and adjacent to a boundary between the object and an outside 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 a second edge pixel group adjacent to the boundary and located in a second end portion different from the first end portion and on a opposite side of the first end portion in the scanning direction, a ratio of arranging dots in the first regions is lower than a ratio of arranging dots in the second regions.
Claims24
An image processing apparatus comprising:
- a print unit configured to print dots on a print medium by discharging ink droplets on the print medium, and configured to be able to print dots at a resolution higher than a resolution of image data and relatively move in a scanning direction with respect to the print medium;
- and
- a dot arrangement unit configured to perform processing of arranging a dot in a pixel based on the image data including an object,
- wherein the print unit includes a first nozzle array configured to be able to print a dot in a first region of each pixel of the object, and a second nozzle array configured to be able to print a dot in a second region of each pixel of the object, and the first region and the second region are arranged in a direction orthogonal to the scanning direction,
- as a result of the processing by the dot arrangement unit, dots are arranged so that in a first edge pixel group located in a first end portion of the object in the scanning direction and adjacent to a boundary between the object and an outside 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 a second edge pixel group adjacent to the boundary and located in a second end portion different from the first end portion and on a opposite side of the first end portion in the scanning direction, a ratio of arranging dots in the first regions is lower than a ratio of arranging dots in the second regions, and
- a positional relationship between an array of the dots arranged in the first regions of the pixels in the scanning direction of the object and an array of the dots arranged in the second regions of the pixels in the scanning direction of the object is uniformly shifted in the scanning direction so that a width in the scanning direction of the object is narrow.
3 more elements
An image processing apparatus comprising:
- a print unit configured to print dots on a print medium by discharging ink droplets on the print medium, and configured to be able to print dots at a resolution higher than a resolution of image data and relatively move in a scanning direction with respect to the print medium;
- a detection unit configured to detect edge pixels adjacent to a boundary between an object and an outside of the object;
- a quantization unit configured to perform quantization processing based on the image data including the object;
- and
- a dot arrangement unit configured to 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 the print unit includes a first nozzle array configured to be able to print a dot in a first region of each pixel of the object, and a second nozzle array configured to be able to print a dot in a second region of each pixel of the object, and the first region and the second region are arranged in a direction orthogonal to the scanning direction,
- the detection unit detects a first edge pixel group located in a first end portion of the object in the scanning direction and a second edge pixel group located in a second end portion, different from the first end portion, on an opposite side of the first end portion in the scanning direction, and
- the dot arrangement unit
- arranges dots so that in a first edge pixel group, a ratio of arranging dots in the second regions is lower than a ratio of arranging dots in the first regions, and in a second edge pixel group, a ratio of arranging dots in the first regions is lower than a ratio of arranging dots in the second regions, and
- uniformly shifts, in the scanning direction so that a width in the scanning direction of the object is narrow, a positional relationship between an array of the dots arranged in the first regions of the pixels in the scanning direction of the object and an array of the dots arranged in the second regions of the pixels in the scanning direction of the object.
7 more elements
Dependencies are inferred from the claim text.