| 摘要 |
<p>A method of searching a matrix (41) of binary data is effective to find search regions (42-R to 50-R) in which straight lines (42-50) may be found, with the straight lines being perpendicular to the original direction of scanning which produced the matrix (41) of binary data. Firstly, the predetermined area (41) is scanned along predetermined search scans in a direction which is parallel to the original direction of scanning to search for the presence of binary one indicia, to generate search results for each of said search scans, with a binary one indicating the presence of data. Then, the search results of preselected said search scans are combined in an AND-logic manner to generate AND-scans, and preselected AND-scans are combined in an OR-logic manner to generate OR-scans. The resulting OR-scans are used to define the search regions (42-R to 50-R) in which to look for the straight lines (42-50) which are perpendicular to the original direction of scanning.</p> |
