Image processing apparatus and method
First Claim
Patent Images
1. An image processing apparatus comprising:
- a first input unit, arranged to input image information;
a recognizing unit, arranged to recognize a plurality of text regions included in the input image information;
a generator, arranged to generate authentication information corresponding to each text region to control processing for the text region;
a setting unit, arranged to set whether text in each text region is to be visible or not after the processing for the text region is performed;
an embedding unit, arranged to embed the authentication information corresponding to each text region into the respective corresponding text region as a digital watermark, wherein the digital watermark is visible when the visible text is set for the corresponding text region and, is invisible when the invisible text is set for the corresponding text region,wherein said image processing apparatus comprises a processor configured to function as at least said recognizing unit and said generator.
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Abstract
It is required to protect the copyrights and the like of partial images which form respective parts of an image obtained by reading an image, exchanged using a print as a medium, by an image scanner or the like. Input image data is divided into a plurality of image regions having different features, digital watermarks, which are embedded in the detected image regions by embedding methods corresponding to the features of the image regions, are extracted, and the availability of the input image is checked on the basis of the extracted digital watermarks.
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Citations
9 Claims
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1. An image processing apparatus comprising:
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a first input unit, arranged to input image information; a recognizing unit, arranged to recognize a plurality of text regions included in the input image information; a generator, arranged to generate authentication information corresponding to each text region to control processing for the text region; a setting unit, arranged to set whether text in each text region is to be visible or not after the processing for the text region is performed; an embedding unit, arranged to embed the authentication information corresponding to each text region into the respective corresponding text region as a digital watermark, wherein the digital watermark is visible when the visible text is set for the corresponding text region and, is invisible when the invisible text is set for the corresponding text region, wherein said image processing apparatus comprises a processor configured to function as at least said recognizing unit and said generator. - View Dependent Claims (2, 3, 4, 5, 6)
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7. An image processing method comprising the steps of:
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inputting image information; recognizing a plurality of text regions included in the input image information; generating authentication information corresponding to each text region to control processing for the text region; setting whether text in each text region is to be visible or not after the processing for the text region is performed; and embedding the authentication information corresponding to each text region into the respective corresponding text region as a digital watermark, wherein the digital watermark is visible when the visible text is set for the corresponding text region and is invisible when the invisible text is set for the corresponding text region. - View Dependent Claims (8, 9)
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Specification