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DE3874405D1 - Vorrichtung zum unterscheiden von bildbereichen. - Google Patents

Vorrichtung zum unterscheiden von bildbereichen.

Info

Publication number
DE3874405D1
DE3874405D1 DE8888107449T DE3874405T DE3874405D1 DE 3874405 D1 DE3874405 D1 DE 3874405D1 DE 8888107449 T DE8888107449 T DE 8888107449T DE 3874405 T DE3874405 T DE 3874405T DE 3874405 D1 DE3874405 D1 DE 3874405D1
Authority
DE
Germany
Prior art keywords
distinating
picture areas
picture
areas
distinating picture
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 - Fee Related
Application number
DE8888107449T
Other languages
English (en)
Other versions
DE3874405T2 (de
Inventor
Yukio Sakano
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.)
Ricoh Co Ltd
Original Assignee
Ricoh Co Ltd
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 Ricoh Co Ltd filed Critical Ricoh Co Ltd
Publication of DE3874405D1 publication Critical patent/DE3874405D1/de
Application granted granted Critical
Publication of DE3874405T2 publication Critical patent/DE3874405T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Facsimile Image Signal Circuits (AREA)
  • Image Analysis (AREA)
DE8888107449T 1987-05-11 1988-05-09 Vorrichtung zum unterscheiden von bildbereichen. Expired - Fee Related DE3874405T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62113793A JP2617469B2 (ja) 1987-05-11 1987-05-11 画像領域識別装置

Publications (2)

Publication Number Publication Date
DE3874405D1 true DE3874405D1 (de) 1992-10-15
DE3874405T2 DE3874405T2 (de) 1993-04-08

Family

ID=14621226

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8888107449T Expired - Fee Related DE3874405T2 (de) 1987-05-11 1988-05-09 Vorrichtung zum unterscheiden von bildbereichen.

Country Status (4)

Country Link
US (1) US4984283A (de)
EP (1) EP0291000B1 (de)
JP (1) JP2617469B2 (de)
DE (1) DE3874405T2 (de)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2662429B2 (ja) * 1988-11-14 1997-10-15 キヤノン株式会社 画像編集装置
JP3020957B2 (ja) * 1988-11-18 2000-03-15 キヤノン株式会社 画像処理方法
JP2949628B2 (ja) * 1988-11-22 1999-09-20 株式会社リコー 画像領域分離方法
JP2809447B2 (ja) * 1989-01-21 1998-10-08 株式会社リコー 画像処理装置
US5351138A (en) * 1990-04-24 1994-09-27 Ricoh Company, Ltd. Image area discriminating device
US5404411A (en) * 1990-12-27 1995-04-04 Xerox Corporation Bitmap-image pattern matching apparatus for correcting bitmap errors in a printing system
NL9100275A (nl) * 1991-02-18 1992-09-16 Oce Nederland Bv Werkwijze voor beeldbewerking, scan/afdruksysteem voor uitvoeren van de werkwijze en beeldselectieeenheid voor toepassing in het scan/afdruksysteem.
US5392365A (en) * 1991-12-23 1995-02-21 Eastman Kodak Company Apparatus for detecting text edges in digital image processing
DE4218506A1 (de) * 1992-06-04 1993-12-09 Josef Kirmeier Kopiervorrichtung
JP3016673B2 (ja) * 1993-04-08 2000-03-06 株式会社エフ・エム・ティ 画像処理領域設定装置
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
US5832122A (en) * 1995-03-24 1998-11-03 Fuji Photo Film Co., Ltd. Method of processing image data
DE19646203C2 (de) * 1995-11-10 2001-04-19 Ricoh Kk Bildverarbeitungsapparat zum Bereitstellen einer Funktion zum Entfernen isolierter Punkte
US6091891A (en) * 1997-05-09 2000-07-18 Lexmark International, Inc. Method and apparatus for calibrating delay lines to create gray levels in continuous tone printing
US6185335B1 (en) 1998-07-07 2001-02-06 Electronics For Imaging, Inc. Method and apparatus for image classification and halftone detection
US6839151B1 (en) * 2000-02-02 2005-01-04 Zoran Corporation System and method for color copy image processing
US6900908B1 (en) * 2000-09-20 2005-05-31 International Business Machines Corporation Method, system, and program for halftoning data for rendering in a multitone output device
JP4814039B2 (ja) * 2005-10-27 2011-11-09 株式会社リコー 画像処理装置、画像処理プログラムおよび記録媒体

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3849592A (en) * 1973-02-05 1974-11-19 Litton Systems Inc Graphic data redundancy reduction for text and half-tone optical facsimile system
US4084196A (en) * 1977-01-31 1978-04-11 Dacom, Inc. Electronic half-tone generating means for facsimile reproduction system
US4144547A (en) * 1977-04-04 1979-03-13 Xerox Corporation Apparatus and method for encoding halftone and line copy data
US4554593A (en) * 1981-01-02 1985-11-19 International Business Machines Corporation Universal thresholder/discriminator
US4554549A (en) * 1983-09-19 1985-11-19 Raytheon Company Microstrip antenna with circular ring
US4559563A (en) * 1983-10-11 1985-12-17 Xerox Corporation Adaptive prediction for binary encoded documents containing a mixture of text, line drawings and halftones
DE3545467A1 (de) * 1984-12-20 1986-07-10 Ricoh Co., Ltd., Tokio/Tokyo Digitalkopierer
JPS6282477A (ja) * 1985-10-07 1987-04-15 Canon Inc 表示装置
US4717964A (en) * 1985-11-15 1988-01-05 Konishiroku Photo Industry Co. Image processing apparatus
DE3752300T2 (de) * 1986-08-29 2000-04-13 Canon K.K., Tokio/Tokyo Ein-/Ausgabegerät und Verfahren zur Verarbeitung von Bilddaten

Also Published As

Publication number Publication date
US4984283A (en) 1991-01-08
EP0291000A3 (en) 1989-01-11
JPS63279665A (ja) 1988-11-16
DE3874405T2 (de) 1993-04-08
EP0291000A2 (de) 1988-11-17
JP2617469B2 (ja) 1997-06-04
EP0291000B1 (de) 1992-09-09

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee