Is this you? Create Your Porfile
Avatar

Douglas G. Keithley

Hewlett-Packard

Publication

Featured researches published by Douglas G. Keithley.

Archive | 1999

Sensor assemblies for color optical image scanners optical scanner and methods of scanning color images

Douglas G. Keithley; Brent D. Rasmussen

Archive | 1999

Imaging system with color corrected light source

Eric L. Andersen; Paul L. Jeran; Douglas G. Keithley; Thomas M. Sternberg; Curt N. Van Lydegraf

Archive | 1997

Method and apparatus for converting a gray level pixel image to a binary level pixel image

Douglas G. Keithley

Archive | 2001

Image forming device fast draft print mode

Douglas G. Keithley; Brent D. Rasmussen

Archive | 2000

Scanner calibration with dead pixel compensation

Gerald J. Reeves; Douglas G. Keithley

Archive | 2000

Method and system for modifying portions of an image bit stream representing printing horizontal lines and edges to improve print quality

Dean Richtsmeier; David Larson; Brent D. Rasmussen; Bruce J. Jackson; Douglas G. Keithley

Archive | 1999

System and method for scanning a document

Douglas G. Keithley

Archive | 2001

Method and apparatus for reproducing sepia-tone images

Douglas G. Keithley

Archive | 1999

Conversion of error-diffused facsimile images to lower resolutions

Douglas G. Keithley; Brent D. Rasmussen

Archive | 2003

System and methodology for the use of optical positioning system for scanners

Sarah M. Brandenberger; Curt N. Van Lydegraf; Douglas G. Keithley; Stephen B. Witte

Researchain Logo
Decentralizing Knowledge