发明名称 |
System and method for automatically detecting edges of scanned documents |
摘要 |
A method for identifying document edges collects a predetermined number scanlines of the document. Both first order and second order statistics are then calculated based on the scanned data. A first slope value being a function of the difference between a plurality of the first value and a second slope value being a function of the difference between a plurality of the second value are calculated. A document edge is detected using the first and second slope values.
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申请公布号 |
US6930804(B2) |
申请公布日期 |
2005.08.16 |
申请号 |
US20010775367 |
申请日期 |
2001.02.01 |
申请人 |
XEROX CORPORATION |
发明人 |
FARRELL BARBARA L. |
分类号 |
G06T1/00;G06T7/60;H04N1/00;H04N1/04;(IPC1-7):H04N1/04 |
主分类号 |
G06T1/00 |
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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