Image processing apparatus, image processing method, and storage medium
AssigneeCanon Kabushiki Kaisha
InventorYuichi Inoue
Life of this patent
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Abstract
An image processing apparatus includes an imaging unit configured to capture an image of a printed matter in which additional information has been embedded by an electronic watermark and an extraction unit configured to perform an extraction process of extracting the additional information from captured image information obtained by the imaging unit. The image processing apparatus further includes a notification unit configured to notify information indicating that the imaging unit is in a stage of preparation for the extraction process in a case where a positional relationship between the printed matter and the imaging unit satisfies some of conditions for starting the extraction process.
Claims11
An image processing apparatus including an imaging unit comprising:
- an extraction unit configured to perform an extraction process of extracting positional information from captured image information obtained by capturing a printed matter in which the positional information and additional information have been embedded by an electronic watermark, wherein the extraction unit starts an extraction process of extracting the additional information in a case where an extraction state of the positional information satisfies a first condition;
- a first display unit configured to display a progress screen indicating progress of the extraction process of the additional information in a case where the state of extracting the positional information satisfies a second condition;
- and
- a second display unit configured to display a warning message indicating a change of a positional relationship between the image processing apparatus and the printed matter in a case where the state of extracting the additional information from the captured image information satisfies a third condition after the progress screen is displayed;
- wherein the first display unit displays the progress screen in a case where the state of extracting the additional information is changed from a state of satisfying the third condition to a state of not satisfying the third condition while the warning message is displayed, and
- wherein the extracting unit, the first display unit and the second display unit are implemented by at least one processor in the image processing apparatus.
An image processing method performed in an image processing apparatus including an imaging unit comprising:
- performing an extraction process of extracting positional information from captured image information obtained by capturing a printed matter in which the positional information and additional information have been embedded by an electronic watermark;
- starting an extraction process of extracting the additional information in a case where an extraction state of the positional information satisfies a first condition;
- displaying a progress screen indicating progress of the extraction process of the additional information in a case where the state of extracting the positional information satisfies a second condition;
- and
- displaying a warning message indicating a change of a positional relationship between the image processing apparatus and the printed matter in a case where the state of extracting the additional information from the captured image information satisfies a third condition after the progress screen is displayed,
- wherein the progress screen is displayed in a case where the state of extracting the additional information is changed from a state of satisfying the third condition to a state of not satisfying the third condition while the warning message is displayed;
- and
- wherein extracting the positional information and the additional information, displaying the progress screen, and displaying the warning message are implemented by at least one processor in the image processing apparatus.
A non-transitory computer readable storage medium storing a program for causing a computer to perform an image processing method, the method comprising:
- performing an extraction process of extracting positional information from captured image information obtained by capturing a printed matter in which the positional information and additional information have been embedded by an electronic watermark;
- starting an extraction process of extracting the additional information in a case where an extraction state of the positional information satisfies a first condition;
- displaying a progress screen indicating progress of the extraction process of the additional information in a case where the state of extracting the positional information satisfies a second condition;
- and
- displaying a warning message indicating a change of a positional relationship between an image processing apparatus and the printed matter in a case where the state of extracting the additional information from the captured image information satisfies a third condition after the progress screen is displayed,
- wherein the progress screen is displayed in a case where the state of extracting the additional information is changed from a state of satisfying the third condition to a state of not satisfying the third condition while the warning message is displayed, and
- wherein extracting the positional information and the additional information, displaying the progress screen, and displaying the warning message are implemented by at least one processor in the image processing apparatus.
Dependencies are inferred from the claim text.