• DocumentCode
    783210
  • Title

    A new bi-level quantizing method for document images

  • Author

    Kuwata, Naoki ; Murayama, Yasuhiko ; Ilno, S.

  • Author_Institution
    Seiko Epson Corp., Nagano, Japan
  • Volume
    38
  • Issue
    3
  • fYear
    1992
  • fDate
    8/1/1992 12:00:00 AM
  • Firstpage
    718
  • Lastpage
    724
  • Abstract
    An adaptive bilevel quantizing technique for images containing text and continuous-tone areas in the same page is proposed. At first, the original document image is divided into M×M pixel blocks and whether a block is a continuous-tone area or not is determined by using two features, the density of black pixels in the block and the differential value to neighbors. Then, continuous-tone areas are made binary by using the multistep dither matrix. Finally, the remaining area, which includes text and figures, is quantized to bilevel
  • Keywords
    document image processing; image processing; adaptive bilevel quantizing technique; black pixel density; continuous-tone areas; differential value; document images; multistep dither matrix; pixel blocks; Character recognition; Displays; Facsimile; Feature extraction; Image processing; Image resolution; Image segmentation; Pixel; Research and development;
  • fLanguage
    English
  • Journal_Title
    Consumer Electronics, IEEE Transactions on
  • Publisher
    ieee
  • ISSN
    0098-3063
  • Type

    jour

  • DOI
    10.1109/30.156760
  • Filename
    156760
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=783210