CHARACTER IMAGE EXTRACTING APPARATUS AND CHARACTER IMAGE EXTRACTING METHOD
First Claim
1. A character image extracting method comprising:
- an extracting step for obtaining a linked component composed of a plurality of mutually linking pixels from a character string region composed of a plurality of characters and extracting section elements from the character string region, the section elements each being surrounded by a circumscribing figure circumscribing to the linked component;
an altering step for altering the section elements extracted in the extracting step, a new section element being formed by combining section elements at least having a mutually overlapping part among the section elements extracted in the extracting step, while remaining section elements thereof being set as new section elements without being altered; and
a selecting step for selecting, from among the section elements altered in the altering step, section elements having a size greater than a predetermined reference size.
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Abstract
In an extracting step, the extracting portion obtains a linked component composed of a plurality of mutually linking pixels from a character string region composed of a plurality of characters, and extracts section elements from the character string region, the section elements each being surrounded by a circumscribing figure circumscribing to the linked component. In the first altering step, the first altering portion combines section elements at least having a mutually overlapping part among the extracted section elements so as to prepare a new section element. In the first selecting step, the first selecting portion determines a reference size in advance and selects section elements having a size greater than the reference size, from among the section elements altered in the first altering step.
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Citations
6 Claims
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1. A character image extracting method comprising:
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an extracting step for obtaining a linked component composed of a plurality of mutually linking pixels from a character string region composed of a plurality of characters and extracting section elements from the character string region, the section elements each being surrounded by a circumscribing figure circumscribing to the linked component; an altering step for altering the section elements extracted in the extracting step, a new section element being formed by combining section elements at least having a mutually overlapping part among the section elements extracted in the extracting step, while remaining section elements thereof being set as new section elements without being altered; and a selecting step for selecting, from among the section elements altered in the altering step, section elements having a size greater than a predetermined reference size. - View Dependent Claims (2, 3, 5, 6)
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4. A character image extracting apparatus comprising:
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an extracting portion for obtaining a linked component composed of a plurality of mutually linking pixels from a character string region composed of a plurality of characters and extracting section elements from the character string region, the section elements each being surrounded by a circumscribing figure circumscribing to the linked component; an altering portion for altering the section elements extracted by the extracting portion, a new section element being formed by combining section elements at least having a mutually overlapping part among the selection elements extracted by the extracting portion, and setting remaining section elements thereof as new section elements without being altered; and a selecting portion for selecting, from among the section elements altered by the altering portion, section elements having a size greater than a predetermined reference size.
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Specification