| 发明名称 |
Method and apparatus for identification of document skew. |
| 摘要 |
A method and apparatus for identifying and correcting for document skew. Lines of a bitmap are scanned and a variance in the number of ON (or OFF) pixels as a function of angle of rotation is calculated (4, 6, 8). Skew of the original document occurs when the variance is a maximum (10). |
| 申请公布号 |
EP0431962(A2) |
申请公布日期 |
1991.06.12 |
| 申请号 |
EP19900313313 |
申请日期 |
1990.12.07 |
| 申请人 |
XEROX CORPORATION |
发明人 |
BLOOMBERG, DAN S.;KOPEC, GARY E. |
| 分类号 |
G06K9/32;G06T7/00;H04N1/387 |
主分类号 |
G06K9/32 |
| 代理机构 |
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代理人 |
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| 主权项 |
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| 地址 |
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