Inventor
FARRELL BARBARA L
US15 patents
⚠️ This page may combine multiple inventors who share the name “FARRELL BARBARA L”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
XEROX CORP
13 patentsUS6222642B1Apr 24, 2001
System and method for eliminating background pixels from a scanned image
XEROX CORP171 citations99
US5293430AMar 8, 1994
Automatic image segmentation using local area maximum and minimum image signals
XEROX CORP284 citations99
US6236751B1May 22, 2001
Automatic method for determining piecewise linear transformation from an image histogram
XEROX CORP92 citations97
US6741741B2May 25, 2004
System and method for automatically detecting edges of scanned documents
XEROX CORP64 citations96
US5848183ADec 8, 1998
System and method for generating and utilizing histogram data from a scanned image
XEROX CORP57 citations96
US4716438ADec 29, 1987
High speed electronic reprographic/printing machine
XEROX CORP71 citations96
US4757348AJul 12, 1988
High speed electronic reprographic/printing machine
XEROX CORP125 citations95
US6198845B1Mar 6, 2001
Method for determining document background for adjusting the dynamic range of an image of the document
XEROX CORP72 citations93
US5881166AMar 9, 1999
Method and system for generating a histogram of a scanned image
XEROX CORP43 citations92
US5751848AMay 12, 1998
System and method for generating and utilizing histogram data from a scanned image
XEROX CORP50 citations92
US5282061AJan 25, 1994
Programmable apparatus for determining document background level
XEROX CORP52 citations92
US6930804B2Aug 16, 2005
System and method for automatically detecting edges of scanned documents
XEROX CORP11 citations73
US5835628ANov 10, 1998
Method and system for generating histograms from a scanned image
XEROX CORP15 citations73