Screen pattern removal for character pattern extraction from high-resolution color document images

Hideaki Goto, Hirotomo Aso

Research output: Contribution to journalArticlepeer-review

Abstract

Screen pattern used in offset-printed documents has been one of great obstacles in developing document recognition systems that handle color documents. This paper proposes a selective smoothing method for filtering the screen patterns/noise in high-resolution color document images. Experimental results show that the method yields significant improvements in character pattern extraction.

Original languageEnglish
Pages (from-to)1310-1313
Number of pages4
JournalIEICE Transactions on Information and Systems
VolumeE88-D
Issue number6
DOIs
Publication statusPublished - 2005 Jun

Keywords

  • Character pattern extraction
  • Color document
  • Offset printing
  • Screen pattern
  • Wavelet transform

ASJC Scopus subject areas

  • Software
  • Hardware and Architecture
  • Computer Vision and Pattern Recognition
  • Electrical and Electronic Engineering
  • Artificial Intelligence

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