| 摘要 |
PROBLEM TO BE SOLVED: To provide a ruled-line extracting method for correctly extracting ruled-lines from a read-in image and reproducing them in document data. SOLUTION: When a binary image is inputted, a reduced image is generated by an OR thinning-out process, connection components of black pixels are extracted through a labeling process, and a mask process for extracting straight- line components is carried out. Then segment extraction is carried out and cells are extracted; and ruled lines constituting nesting are determined and a double line is decided. Lastly, oblique lines are extracted. COPYRIGHT: (C)2004,JPO
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