Patent · US Expired

Image reduction apparatus

US5448654A · kind A · utility

21Cited by
11References
24Claims
0Family size

Assignee

Inventors

Key dates

Filing dateMar 3, 1994
Grant dateSep 5, 1995
Priority date
Expiry dateMar 3, 2014

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH04N1/4105
  • WIPO fieldAudio-visual technology
  • WIPO sectorElectrical engineering

Abstract

An image reduction apparatus includes a smoothing unit for smoothing binary image data, a binarization unit for binarizing an output from the smoothing unit, a detection unit for detecting an attribute of the binary image data smoothed by the smoothing unit, a plurality of correction units corresponding to a plurality of attributes, and a selector for selecting one of the correction units in accordance with the attribute detected by the detection unit. An output from the binarization unit is corrected by the correction unit selected by the selector.

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