Image processing apparatus, image processing method and storage medium storing program
AssigneeCanon Kabushiki Kaisha
InventorHideyuki Kido
Life of this patent
Estimating the term…
Abstract
A reading unit, which reads images, reads an image of a predetermined pattern that includes a plurality of marks and is printed on a printing medium by executing scanning relative to the printing medium. Image data acquired by this reading is acquired. Reading adjustment values are specified in accordance with displacement amounts of a plurality of regions with respect to ideal positions. The plurality of regions are formed based on the plurality of patterns included in the acquired image data. Reading processing of a reading mechanism 7 is corrected in accordance with the specified reading adjustment values.
Claims17
An apparatus comprising:
- an acquisition unit configured to acquire image data acquired by a reading unit reading an image of a predetermined pattern printed on a printing medium, wherein the reading is performed by the reading unit executing scanning relative to the printing medium, and the predetermined pattern includes a plurality of marks;
- a specification unit configured to specify reading adjustment values in accordance with displacement amounts of a plurality of regions with respect to corresponding ideal positions, wherein the plurality of regions are formed based on the plurality of patterns included in the image data acquired by the acquisition unit;
- and
- a correction unit configured to correct reading processing of the reading unit in accordance with the reading adjustment values specified by the specification unit.
A method comprising:
- acquiring image data acquired by a reading unit reading an image of a predetermined pattern printed on a printing medium, wherein the reading is performed by the reading unit executing scanning relative to the printing medium, and the predetermined pattern includes a plurality of marks;
- specifying reading adjustment values in accordance with displacement amounts of a plurality of regions with respect to corresponding ideal positions, wherein the plurality of regions are formed based on the plurality of patterns included in the acquired image data;
- and
- correcting reading processing of the reading unit in accordance with the specified reading adjustment values.
A computer-readable storage medium that stores therein a program for:
- acquiring image data acquired by a reading unit reading an image of a predetermined pattern printed on a printing medium, wherein the reading is performed by the reading unit executing scanning relative to the printing medium, and the predetermined pattern includes a plurality of marks;
- specifying reading adjustment values in accordance with displacement amounts of a plurality of regions with respect to corresponding ideal positions, wherein the plurality of regions are formed based on the plurality of patterns included in the acquired image data;
- and
- correcting reading processing of the reading unit in accordance with the specified reading adjustment values.
Dependencies are inferred from the claim text.