Verfahren und Gerät zur Dokumentschräglage-Ermittlung
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
DE69032421(T2)
申请公布日期
1998.12.03
申请号
DE1990632421T
申请日期
1990.12.07
申请人
XEROX CORP., ROCHESTER, N.Y., US
发明人
BLOOMBERG, DAN S., PALO ALTO, CALIFORNIA, 94306, US;KOPEC, GARY E., BELMONT, CALIFORNIA, 94002, US
