Patent · US Active

System and method for enhancing gray scale output on a color display

US7643040B1 · kind B1 · utility

9Cited by
19References
20Claims
0Family size

Assignee

Inventors

Key dates

Filing dateApr 8, 2004
Grant dateJan 5, 2010
Priority date
Expiry dateJan 6, 2027

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG09G2380/08
  • WIPO fieldAudio-visual technology
  • WIPO sectorElectrical engineering

Abstract

There is disclosed a system and method for enhancing gray scale output on a color display. Various gray intensities are mapped based on an image made of various shades of gray so that a viewer perceives a depth of gray levels beyond those available in gray scale from the color display. Pseudo shades of gray are displayed between the levels of true gray that typically are displayed in order to provide a smoother transition between the levels of true gray that are displayed.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.