Image processing apparatus and image processing method
AssigneeCanon Kabushiki Kaisha
InventorsHiroyasu Kunieda, Akitoshi Yamada, Yoichi Kashibuchi
Life of this patent
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Abstract
Provided is an image processing apparatus for extracting embedded information from a printed document, including: a first obtaining unit configured to obtain a printing method of the printed document; a second obtaining unit capable of obtaining first image data by reading the printed document while applying light to the printed document; a third obtaining unit capable of obtaining second image data by reading the printed document without applying light to the printed document; and an extraction unit configured to extract the embedded information by using at least one of the first image data and the second image data according to the printing method obtained by the first obtaining unit.
Claims20
An image processing apparatus for extracting embedded information from a printed document, comprising:
- a first obtaining unit configured to obtain a printing method of the printed document;
- a second obtaining unit capable of obtaining first image data by reading the printed document while applying light to the printed document;
- a third obtaining unit capable of obtaining second image data by reading the printed document without applying light to the printed document;
- and
- an extraction unit configured to extract the embedded information by using at least one of the first image data and the second image data according to the printing method obtained by the first obtaining unit.
A method of controlling an image processing apparatus for extracting embedded information from a printed document, the method comprising:
- obtaining a printing method of the printed document;
- obtaining first image data by reading the printed document while applying light to the printed document;
- obtaining second image data by reading the printed document without applying light to the printed document;
- and
- extracting the embedded information by using image data corresponding to the printing method obtained by the obtaining a printing method.
Dependencies are inferred from the claim text.