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US 6,289,123 B1Granted
Character extracting method and its apparatus
AssigneeSharp Kabushiki Kaisha
InventorsZhang Xiaomang, Koichi Hatakeyama
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Abstract
A character extracting method includes the steps of: obtaining an image of a specific region; applying a Laplacian operation to the obtained image; binarizing an image resulting from the Laplacian operation; and separating and cutting a character on a character-by-character basis based on the binarized image.
Claims22
A character extracting method, comprising the steps of:
- obtaining an image of a specific region;
- applying a Laplacian operation to the obtained image to determine the presence of a convex property or a concave property of a gray level profile associated with a character-drawn portion;
- binarizing the image resulting from the Laplacian operation;
- and
- separating and cutting a character on a character-by-character basis based on the binarized image.
2 more elements
A character extracting apparatus, comprising the steps of:
- an imaging section for obtaining an image of a specific region;
- a Laplacian operation section for applying a Laplacian operation to the obtained image to determine the presence of a convex property or a concave property of a gray level profile associated with a character-drawn portion;
- a binarizing section for binarizing the image resulting from the Laplacian operation;
- and
- a cutting section for separating and cutting a character on a character-by-character basis based on the binarized image.
2 more elements
Dependencies are inferred from the claim text.