DE69612039T2 - Vorrichtung und Verfahren zur Kompression und Wiedergabe von binären Mehrtonbildern - Google Patents

Vorrichtung und Verfahren zur Kompression und Wiedergabe von binären Mehrtonbildern

Info

Publication number
DE69612039T2
DE69612039T2 DE69612039T DE69612039T DE69612039T2 DE 69612039 T2 DE69612039 T2 DE 69612039T2 DE 69612039 T DE69612039 T DE 69612039T DE 69612039 T DE69612039 T DE 69612039T DE 69612039 T2 DE69612039 T2 DE 69612039T2
Authority
DE
Germany
Prior art keywords
compressing
tone images
binary multi
reproducing binary
reproducing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
DE69612039T
Other languages
English (en)
Other versions
DE69612039D1 (de
Inventor
Toshiyuki Hattori
Ryuji Oomoto
Kiyoaki Murai
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Seiko Epson Corp
Original Assignee
Seiko Epson Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Seiko Epson Corp filed Critical Seiko Epson Corp
Publication of DE69612039D1 publication Critical patent/DE69612039D1/de
Application granted granted Critical
Publication of DE69612039T2 publication Critical patent/DE69612039T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/40—Picture signal circuits
    • H04N1/405—Halftoning, i.e. converting the picture signal of a continuous-tone original into a corresponding signal showing only two levels
    • H04N1/4055—Halftoning, i.e. converting the picture signal of a continuous-tone original into a corresponding signal showing only two levels producing a clustered dots or a size modulated halftone pattern
    • H04N1/4056—Halftoning, i.e. converting the picture signal of a continuous-tone original into a corresponding signal showing only two levels producing a clustered dots or a size modulated halftone pattern the pattern varying in one dimension only, e.g. dash length, pulse width modulation [PWM]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/41—Bandwidth or redundancy reduction
    • H04N1/4105—Bandwidth or redundancy reduction for halftone screened pictures

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Image Processing (AREA)
  • Facsimile Image Signal Circuits (AREA)
  • Compression Of Band Width Or Redundancy In Fax (AREA)
  • Dot-Matrix Printers And Others (AREA)
  • Color, Gradation (AREA)
DE69612039T 1995-06-27 1996-06-26 Vorrichtung und Verfahren zur Kompression und Wiedergabe von binären Mehrtonbildern Expired - Lifetime DE69612039T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP16055495 1995-06-27
JP10531696A JP3542685B2 (ja) 1995-06-27 1996-04-25 マルチトーンをもつバイナリ画像の圧縮及び復元のための装置及び方法

Publications (2)

Publication Number Publication Date
DE69612039D1 DE69612039D1 (de) 2001-04-19
DE69612039T2 true DE69612039T2 (de) 2001-11-08

Family

ID=26445635

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69612039T Expired - Lifetime DE69612039T2 (de) 1995-06-27 1996-06-26 Vorrichtung und Verfahren zur Kompression und Wiedergabe von binären Mehrtonbildern

Country Status (4)

Country Link
US (1) US5802209A (de)
EP (1) EP0751676B1 (de)
JP (1) JP3542685B2 (de)
DE (1) DE69612039T2 (de)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6119161A (en) * 1997-02-28 2000-09-12 International Business Machines Corporation Managing connection requests in a dialup computer network
US6683702B1 (en) 1999-07-07 2004-01-27 Xerox Corporation Compact-dot reproduction of scanned halftone screens
JP3927388B2 (ja) * 2000-09-27 2007-06-06 株式会社リコー 画像処理装置、画像処理方法及び記録媒体
KR100484141B1 (ko) * 2002-06-05 2005-04-18 삼성전자주식회사 영상 이진화 장치 및 방법
JP2006074305A (ja) * 2004-09-01 2006-03-16 Ricoh Co Ltd 階調再現方法、画像形成装置及びプリンタドライバ

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4084259A (en) * 1973-11-30 1978-04-11 The Mead Corporation Apparatus for dot matrix recording
US4084196A (en) * 1977-01-31 1978-04-11 Dacom, Inc. Electronic half-tone generating means for facsimile reproduction system
US4150400A (en) * 1977-03-31 1979-04-17 International Business Machines Corporation Methods of a coarse-scan/fine-print character reproduction with compression
DE3002781A1 (de) * 1980-01-26 1981-07-30 Dr.-Ing. Rudolf Hell Gmbh, 2300 Kiel Verfahren zur verbesserten bildwiedergabe in der reproduktionstechnik
US4532503A (en) * 1982-11-08 1985-07-30 International Business Machines Corporation Sequence controlled pixel configuration
US4596993A (en) * 1984-11-29 1986-06-24 Polaroid Corporation Thermal recording system and method
US4926251A (en) * 1987-04-07 1990-05-15 Kabushiki Kaisha Toshiba Color image processing apparatus with image corrector
US4916545A (en) * 1988-11-16 1990-04-10 Eastman Kodak Company Electronic graphic arts screener that suppresses Moire patterns using pseudo-random font selection
JPH04320160A (ja) * 1991-04-19 1992-11-10 Matsushita Electric Ind Co Ltd 画像信号圧縮伸長装置および領域識別処理装置
AU2653795A (en) * 1994-05-27 1995-12-21 Lasermaster Corporation Technique for rendering images on a binary marking engine
US5625755A (en) * 1994-07-01 1997-04-29 Seiko Epson Corporation Method and apparatus for tonal correction in binary printing devices by predistortion of image data utilizing ink reduction processing

Also Published As

Publication number Publication date
DE69612039D1 (de) 2001-04-19
US5802209A (en) 1998-09-01
EP0751676A2 (de) 1997-01-02
JPH0974485A (ja) 1997-03-18
EP0751676B1 (de) 2001-03-14
JP3542685B2 (ja) 2004-07-14
EP0751676A3 (de) 1997-01-22

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition