DE3679311D1 - Verfahren und vorrichtung zur erkennung von halbtonbildinformation. - Google Patents

Verfahren und vorrichtung zur erkennung von halbtonbildinformation.

Info

Publication number: DE3679311D1
Authority: DE; Germany
Prior art keywords: image information; halftone image; detecting halftone; detecting; information
Prior art date: 1985-12-24
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

DE8686202324T

Other languages

English (en)

Inventor

Vogel Robert De

Lucas Johannes Jose Mar Meekes

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.)

Canon Production Printing Netherlands BV

Original Assignee

Oce Nederland BV

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.)

1985-12-24

Filing date

1986-12-18

Publication date

1991-06-20

1986-12-18 Application filed by Oce Nederland BV filed Critical Oce Nederland BV

1991-06-20 Application granted granted Critical

1991-06-20 Publication of DE3679311D1 publication Critical patent/DE3679311D1/de

2006-12-19 Anticipated expiration legal-status Critical

Status 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
- H04N1/40062—Discrimination between different image types, e.g. two-tone, continuous tone

DE8686202324T 1985-12-24 1986-12-18 Verfahren und vorrichtung zur erkennung von halbtonbildinformation. Expired - Lifetime DE3679311D1 (de)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
NL8503558A NL8503558A (nl)	1985-12-24	1985-12-24	Werkwijze en inrichting voor het herkennen van halftoon beeldinformatie.

Publications (1)

Publication Number	Publication Date
DE3679311D1 true DE3679311D1 (de)	1991-06-20

Family

ID=19847065

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
DE8686202324T Expired - Lifetime DE3679311D1 (de)	1985-12-24	1986-12-18	Verfahren und vorrichtung zur erkennung von halbtonbildinformation.

Country Status (5)

Country	Link
US (1)	US4740843A (de)
EP (1)	EP0236594B1 (de)
JP (1)	JPH0626436B2 (de)
DE (1)	DE3679311D1 (de)
NL (1)	NL8503558A (de)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JP2670779B2 (ja) *	1987-08-31	1997-10-29	株式会社東芝	中間調画像分離処理装置
US5001767A (en) *	1987-11-30	1991-03-19	Kabushiki Kaisha Toshiba	Image processing device
US5016117A (en) *	1987-12-29	1991-05-14	Brother Kogyo Kabushiki Kaisha	Optical reader having apparatus for discrimination between dither-matrix and non-dither-matrix reading areas, and/or means for determining light emitter drive power values by using reference reflector surface
US5193122A (en) *	1990-12-03	1993-03-09	Xerox Corporation	High speed halftone detection technique
JPH0818785A (ja) *	1994-04-28	1996-01-19	Ricoh Co Ltd	画像出力装置
US5729627A (en) *	1994-11-16	1998-03-17	Mita Industrial Co., Ltd.	Apparatus for and method of judging dotted image area
US5771313A (en) *	1994-11-16	1998-06-23	Mita Industrial Co., Ltd.	Apparatus for and method of detecting dotted image area using two types of judging areas
US5754312A (en) *	1994-11-22	1998-05-19	Mita Industrial Co., Ltd.	Method of and apparatus for detecting pixels constituting dotted image area utilizing distance between change points of pixel values
US6178260B1 (en)	1998-09-23	2001-01-23	Xerox Corporation	Image segmentation apparatus and method
US6360009B2 (en)	1998-09-23	2002-03-19	Xerox Corporation	Image segmentation apparatus and method
US6529629B2 (en)	1998-09-23	2003-03-04	Xerox Corporation	Image segmentation apparatus and method
US6782129B1 (en)	1998-09-23	2004-08-24	Xerox Corporation	Image segmentation apparatus and method
US6272240B1 (en)	1998-09-23	2001-08-07	Xerox Corporation	Image segmentation apparatus and method
US6389164B2 (en)	1998-09-23	2002-05-14	Xerox Corporation	Image segmentation apparatus and method
JP6027316B2 (ja) *	2012-01-26	2016-11-16	株式会社ミツトヨ	飽和吸収線判定方法、及びレーザ周波数安定化装置

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US4194221A (en) *	1978-12-26	1980-03-18	Xerox Corporation	Automatic multimode continuous halftone line copy reproduction
IT1201920B (it) *	1982-03-22	1989-02-02	Olivetti & Co Spa	Apparecchiatura per la scansione ed il trattamento numerico di immagini con mezzi toni
US4630125A (en) *	1983-06-01	1986-12-16	Xerox Corporation	Unscreening of stored digital halftone images
US4633327A (en) *	1983-11-10	1986-12-30	Xerox Corporation	Enhancement halftoning

1985
- 1985-12-24 NL NL8503558A patent/NL8503558A/nl not_active Application Discontinuation
1986
- 1986-12-18 DE DE8686202324T patent/DE3679311D1/de not_active Expired - Lifetime
- 1986-12-18 EP EP19860202324 patent/EP0236594B1/de not_active Expired
- 1986-12-22 JP JP61306163A patent/JPH0626436B2/ja not_active Expired - Fee Related
- 1986-12-23 US US06/945,781 patent/US4740843A/en not_active Expired - Lifetime

Also Published As

Publication number	Publication date
JPS62165476A (ja)	1987-07-22
US4740843A (en)	1988-04-26
EP0236594A1 (de)	1987-09-16
EP0236594B1 (de)	1991-05-15
NL8503558A (nl)	1987-07-16
JPH0626436B2 (ja)	1994-04-06

Similar Documents

Publication	Publication Date	Title
DE3682249D1 (de)	1991-12-05	Verfahren zur bildbearbeitung und geraet zur bilderzeugung.
DE3851173T2 (de)	1994-12-15	Verfahren und Gerät zur Erkennung von Halbtonbildmustern.
DE3682202D1 (de)	1991-11-28	Verfahren und vorrichtung zur uebertragung von informationssignalen.
DE3687220D1 (de)	1993-01-14	Verfahren und vorrichtung zur detektion von musterfehlern.
DE3674082D1 (de)	1990-10-18	Verfahren und geraet zur aufzeichnung eines halbtonbildes.
DE3679035D1 (de)	1991-06-06	Verfahren und geraet zur aufzeichnung von signalen.
DE3683958D1 (de)	1992-04-02	Verfahren und vorrichtung zur guetepruefung von masken.
DE3687715D1 (de)	1993-03-25	Verfahren und vorrichtung zur datenuebertragung.
DE3586559T2 (de)	1993-03-25	Verfahren und vorrichtung zur bearbeitung von strahlungsbildern.
DE3689791T2 (de)	1994-12-01	Verfahren und vorrichtung zur elektro-optischen farbbildformung.
DE68917413D1 (de)	1994-09-15	Verfahren und Vorrichtung zur Bildsignalverarbeitung.
DE3687211T2 (de)	1993-06-24	Verfahren und vorrichtung zur datenuebertragung.
DE3671655D1 (de)	1990-07-05	Verfahren und vorrichtung zur verkleidung von rohren.
DE3586510D1 (de)	1992-09-24	Verfahren und vorrichtung zur bilduebertragung.
DE3850651T2 (de)	1995-03-16	Vorrichtung und verfahren zur schnellen detektion von bildfehlehrn.
DE3650332D1 (de)	1995-07-13	Verfahren und Gerät zur Bilddatenverarbeitung.
DE3679311D1 (de)	1991-06-20	Verfahren und vorrichtung zur erkennung von halbtonbildinformation.
DE68921420D1 (de)	1995-04-06	Verfahren und Vorrichtung zur Aufzeichnung gerasterter Halbtonbilder.
DE68926694T2 (de)	1996-11-14	Verfahren und Vorrichtung zur Aufzeichnung von Halbtonbildern
DE68918808T2 (de)	1995-05-04	Verfahren und Vorrichtung zur Verarbeitung und Reproduktion von Bildinformationen.
DE3667872D1 (de)	1990-02-01	Verfahren und vorrichtung zur datenuebertragung.
DE3688919D1 (de)	1993-09-30	Verfahren und Vorrichtung zur Bilddatenkompression.
DE3581503D1 (de)	1991-02-28	Geraet und verfahren zur ortung von signalausfaellen.
DE3783878D1 (de)	1993-03-11	Geraet und verfahren zur bildaufzeichnung.
DE3673401D1 (de)	1990-09-13	Verfahren und vorrichtung zur konzentrationsbestimmung.

Legal Events

Date	Code	Title	Description
1992-06-11	8364	No opposition during term of opposition
2005-10-13	8339	Ceased/non-payment of the annual fee