Patent · US Expired

Image separator for color image processing

US5134666A · kind A · utility

28Cited by
7References
10Claims
0Family size

Assignee

Inventors

Key dates

Filing dateAug 9, 1991
Grant dateJul 28, 1992
Priority date
Expiry dateAug 9, 2011

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG06V30/413
  • WIPO fieldAudio-visual technology
  • WIPO sectorElectrical engineering

Abstract

An image region segmentation system for segmenting a color image into a number of elemental regions according to the type of images contained in the elemental region comprises a first detection circuit for discriminating whether an elemental region under processing contains a black pixel or not, a second detection means for discriminating whether the elemental region under processing contains a color pixel or not, a first discrimination circuit for discriminating the elemental region as to whether or not the region includes a black pixel and simultaneously no color pixels, a line image recognition circuit for discriminating as to whether the image in the elemental region under processing includes a line or not, and a second recognition circuit for discriminating such that the elemental region under processing represents a bi-level black line when the elemental region under processing contains a black pixel and simultaneously no color pixels and further simultaneously when the elemental region represents a line.

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