DE3686862D1 - Bildverarbeitungsverfahren. - Google Patents

Bildverarbeitungsverfahren.

Info

Publication number
DE3686862D1
DE3686862D1 DE8686309024T DE3686862T DE3686862D1 DE 3686862 D1 DE3686862 D1 DE 3686862D1 DE 8686309024 T DE8686309024 T DE 8686309024T DE 3686862 T DE3686862 T DE 3686862T DE 3686862 D1 DE3686862 D1 DE 3686862D1
Authority
DE
Germany
Prior art keywords
image processing
processing process
image
processing
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
DE8686309024T
Other languages
English (en)
Other versions
DE3686862T2 (de
Inventor
Matahira Kotani
Motohiko Hayashi
Masafumi Yamanoue
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.)
Sharp Corp
Original Assignee
Sharp 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 Sharp Corp filed Critical Sharp Corp
Application granted granted Critical
Publication of DE3686862D1 publication Critical patent/DE3686862D1/de
Publication of DE3686862T2 publication Critical patent/DE3686862T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T5/00—Image enhancement or restoration
    • G06T5/20—Image enhancement or restoration using local operators
    • 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
    • H04N1/403—Discrimination between the two tones in the picture signal of a two-tone original
    • 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
    • H04N1/409—Edge or detail enhancement; Noise or error suppression

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Facsimile Image Signal Circuits (AREA)
  • Image Processing (AREA)
DE8686309024T 1985-11-18 1986-11-18 Bildverarbeitungsverfahren. Expired - Lifetime DE3686862T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP60259473A JPS62118676A (ja) 1985-11-18 1985-11-18 画像処理方式

Publications (2)

Publication Number Publication Date
DE3686862D1 true DE3686862D1 (de) 1992-11-05
DE3686862T2 DE3686862T2 (de) 1993-05-06

Family

ID=17334563

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8686309024T Expired - Lifetime DE3686862T2 (de) 1985-11-18 1986-11-18 Bildverarbeitungsverfahren.

Country Status (4)

Country Link
US (1) US4841374A (de)
EP (1) EP0223601B1 (de)
JP (1) JPS62118676A (de)
DE (1) DE3686862T2 (de)

Families Citing this family (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4797943A (en) * 1985-11-29 1989-01-10 Ricoh Company, Ltd. Gradation data processing apparatus
US4894727A (en) * 1987-10-20 1990-01-16 Ricoh Company, Ltd. Image processing system and method
DE3838730C2 (de) 1987-11-16 1994-07-28 Canon Kk Verfahren und Vorrichtung zur Bildverarbeitung
US5151794A (en) * 1989-01-30 1992-09-29 Ezel Inc. Image processing method
US6134355A (en) * 1989-02-10 2000-10-17 Canon Kabushiki Kaisha Binarization using a local average, and using error diffusion
JP2817932B2 (ja) * 1989-02-10 1998-10-30 キヤノン株式会社 画像読取装置
US5182657A (en) * 1989-04-27 1993-01-26 Casio Computer Co., Ltd. Image processing apparatus including binary data producing unit
NL8901555A (nl) * 1989-06-21 1991-01-16 Oce Nederland Bv Werkwijze en inrichting voor beeldsegmentatie.
JP2856806B2 (ja) * 1990-01-08 1999-02-10 株式会社リコー ピークホールド回路
US5055942A (en) * 1990-02-06 1991-10-08 Levien Raphael L Photographic image reproduction device using digital halftoning to screen images allowing adjustable coarseness
JPH0834544B2 (ja) * 1990-08-14 1996-03-29 株式会社東芝 画像の復元処理方法
JPH04100378A (ja) * 1990-08-20 1992-04-02 Toshiba Corp 信号処理装置
JP2651493B2 (ja) * 1990-11-21 1997-09-10 スターリング ドライ イメイジング，インコーポレイテッド 印刷装置及び方法
US5170261A (en) * 1990-11-21 1992-12-08 Polaroid Corporation Printing method
US5235434A (en) * 1991-06-27 1993-08-10 Polaroid Corporation Method and apparatus for selectively adjusting the brightness of large regions of an image
JP3222183B2 (ja) * 1992-02-19 2001-10-22 株式会社リコー 画像処理装置
US5243444A (en) * 1992-03-25 1993-09-07 Xerox Corporation Image processing system and method with improved reconstruction of continuous tone images from halftone images including those without a screen structure
BR9408257A (pt) * 1993-12-08 1996-12-10 Minnesota Mining & Mfg Método para produzir uma imagem de segundo plano método para subtrair o segundo plano dos dados de imagem e sistema de visão de máquina para produzir uma imagem de segundo plano
US5870505A (en) * 1996-03-14 1999-02-09 Polaroid Corporation Method and apparatus for pixel level luminance adjustment
JP3472479B2 (ja) 1998-05-22 2003-12-02 シャープ株式会社 画像処理装置
US7440612B2 (en) * 1998-11-13 2008-10-21 Sony Corporation Image processing apparatus and method capable of correcting gradation of image data
JP3594831B2 (ja) * 1999-02-26 2004-12-02 シャープ株式会社 画像補正装置および方法、画像補正制御プログラムを記憶した媒体
US6195467B1 (en) * 1999-03-25 2001-02-27 Image Processing Technologies, Inc. Method and apparatus for sharpening a grayscale image
JP3426189B2 (ja) * 2000-04-26 2003-07-14 インターナショナル・ビジネス・マシーンズ・コーポレーション 画像処理方法、相対濃度の検出方法、および画像処理装置
JP5137602B2 (ja) * 2008-01-31 2013-02-06 株式会社ユニバーサルエンターテインメント 紙葉類識別装置、及び紙葉類識別方法

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4150401A (en) * 1975-10-03 1979-04-17 Kokusai Denshin Denwa Kabushiki Kaisha Facsimile signal converter
JPS56109069A (en) 1980-02-04 1981-08-29 Nec Corp Binary circuit
ATE41833T1 (de) * 1981-01-05 1989-04-15 Image Processing Tech Verfahren und geraet zur umwandlung eines musters in eine binaere form.
US4450483A (en) * 1981-09-02 1984-05-22 Westinghouse Electric Corp. Circuit for improving the quality of digitized line images
JPS59221074A (ja) * 1983-05-30 1984-12-12 Hitachi Ltd パタ−ン信号２値化装置

Also Published As

Publication number Publication date
DE3686862T2 (de) 1993-05-06
JPS62118676A (ja) 1987-05-30
EP0223601A2 (de) 1987-05-27
US4841374A (en) 1989-06-20
EP0223601A3 (en) 1988-10-05
EP0223601B1 (de) 1992-09-30

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8328 Change in the person/name/address of the agent

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