Image processing apparatus, image processing method, and non-transitory computer-readable storage medium
AssigneeCanon Kabushiki Kaisha
InventorsWei Song, Nobutaka Miyake, Yuki Ishida, Ryosuke Iguchi
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Abstract
A plurality of images obtained by capturing, dividing over a plurality of times, a printed material in which additional information is embedded are input. Feature information concerning each of the inputted plurality of images is extracted. A poor quality area in the images is evaluated. An overlapping area of the plurality of images is specified based on the feature information. Additional information embedded in the printed material is extracted based on a result of the evaluating and a result of the specifying.
Claims11
An image processing apparatus that extracts additional information embedded in a printed material, the apparatus comprising:
- an input unit configured to input a plurality of images obtained by capturing, dividing over a plurality of times, a printed material in which additional information is embedded;
- a unit configured to extract feature information concerning each of the plurality of images input by the input unit;
- an evaluation unit configured to evaluate a poor quality area in the images;
- a specifying unit configured to specify an overlapping area of the plurality of images based on the feature information;
- and
- an extraction unit configured to extract additional information embedded in the printed material, based on a result of the specifying by the specifying unit and a result of the evaluation by the evaluation unit.
An image processing method for extracting additional information embedded in a printed material, the method comprising:
- inputting a plurality of images obtained by capturing, dividing over a plurality of times, a printed material in which additional information is embedded;
- extracting feature information concerning each of the inputted plurality of images;
- evaluating a poor quality area in the images;
- specifying an overlapping area of the plurality of images based on the feature information;
- and
- extracting additional information embedded in the printed material based on a result of the evaluating and a result of the specifying.
A non-transitory computer-readable storage medium storing a program for extracting additional information embedded in a printed material, wherein
- the program causes a computer
- to input a plurality of images obtained by capturing, dividing over a plurality of times, a printed material in which additional information is embedded;
- to extract feature information concerning each of the inputted plurality of images;
- to evaluate a poor quality area in the images;
- to specify an overlapping area of the plurality of images based on the feature information;
- and
- to extract additional information embedded in the printed material based on a result of the evaluating and a result of the specifying.
Dependencies are inferred from the claim text.