DE69425012T2 - Verfahren und Vorrichtung zur Umwandlung vom Bilddatengradationen - Google Patents

Verfahren und Vorrichtung zur Umwandlung vom Bilddatengradationen

Info

Publication number
DE69425012T2
DE69425012T2 DE69425012T DE69425012T DE69425012T2 DE 69425012 T2 DE69425012 T2 DE 69425012T2 DE 69425012 T DE69425012 T DE 69425012T DE 69425012 T DE69425012 T DE 69425012T DE 69425012 T2 DE69425012 T2 DE 69425012T2
Authority
DE
Germany
Prior art keywords
image data
converting image
gradations
data gradations
converting
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
DE69425012T
Other languages
English (en)
Other versions
DE69425012D1 (de
Inventor
Takeshi Katayama
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.)
Fujifilm Corp
Original Assignee
Fuji Photo Film 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 Fuji Photo Film Co Ltd filed Critical Fuji Photo Film Co Ltd
Publication of DE69425012D1 publication Critical patent/DE69425012D1/de
Application granted granted Critical
Publication of DE69425012T2 publication Critical patent/DE69425012T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/40Picture signal circuits
    • H04N1/405Halftoning, i.e. converting the picture signal of a continuous-tone original into a corresponding signal showing only two levels
    • H04N1/4055Halftoning, 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
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/40Picture signal circuits
    • H04N1/407Control or modification of tonal gradation or of extreme levels, e.g. background level

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Image Processing (AREA)
  • Facsimile Image Signal Circuits (AREA)
  • Dot-Matrix Printers And Others (AREA)
  • Color, Gradation (AREA)
DE69425012T 1993-04-16 1994-04-15 Verfahren und Vorrichtung zur Umwandlung vom Bilddatengradationen Expired - Lifetime DE69425012T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP08996593A JP3428063B2 (ja) 1993-04-16 1993-04-16 画像データの階調変換方法および装置

Publications (2)

Publication Number Publication Date
DE69425012D1 DE69425012D1 (de) 2000-08-03
DE69425012T2 true DE69425012T2 (de) 2000-11-02

Family

ID=13985404

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69425012T Expired - Lifetime DE69425012T2 (de) 1993-04-16 1994-04-15 Verfahren und Vorrichtung zur Umwandlung vom Bilddatengradationen

Country Status (4)

Country Link
US (1) US5537496A (de)
EP (1) EP0620675B1 (de)
JP (1) JP3428063B2 (de)
DE (1) DE69425012T2 (de)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06334844A (ja) * 1993-05-20 1994-12-02 Canon Inc データ処理方法及びそれを用いた記録装置
JP3488509B2 (ja) 1994-06-14 2004-01-19 富士写真フイルム株式会社 画像データ処理装置
EP1059803B1 (de) * 1999-06-07 2007-07-18 Canon Kabushiki Kaisha Bildaufzeichnungsgerät und Verfahren
JP4288398B2 (ja) * 2000-01-18 2009-07-01 株式会社ニコン 画像記録装置、画像再生装置および画像処理プログラムを記録した記録媒体
US6584610B1 (en) 2000-10-25 2003-06-24 Numerical Technologies, Inc. Incrementally resolved phase-shift conflicts in layouts for phase-shifted features
GB0031771D0 (en) 2000-12-29 2001-02-07 Lsi Logic Corp Bit reduction using dither,rounding and error feedback
JP4958466B2 (ja) * 2006-04-05 2012-06-20 グローバル・オーエルイーディー・テクノロジー・リミテッド・ライアビリティ・カンパニー 表示装置
JP4682958B2 (ja) * 2006-09-13 2011-05-11 富士ゼロックス株式会社 画像処理装置、画像処理プログラム
CN104618701B (zh) * 2015-01-13 2017-03-29 小米科技有限责任公司 图像处理方法及装置、电子设备

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61102872A (ja) * 1984-10-24 1986-05-21 インタ−ナショナル ビジネス マシ−ンズ コ−ポレ−ション 2レベル・イメ−ジ・デ−タの処理方法
JPH0743763B2 (ja) * 1987-11-07 1995-05-15 大日本スクリーン製造株式会社 ルックアップテーブルによる階調変換回路
US5123059A (en) * 1987-09-28 1992-06-16 Dainippon Screen Mfg. Co., Ltd. Gradation converting circuit employing lookup table
US5125045A (en) * 1987-11-20 1992-06-23 Hitachi, Ltd. Image processing system
US5038223A (en) * 1988-02-29 1991-08-06 Canon Kabushiki Kaisha Image processing method and apparatus for imparting a pictorial or painter-like effect
US4969052A (en) * 1988-05-11 1990-11-06 Canon Kabushiki Kaisha Image processing method and apparatus
US5101452A (en) * 1990-12-17 1992-03-31 Eastman Kodak Company Apparatus and method for dynamic step quantization

Also Published As

Publication number Publication date
US5537496A (en) 1996-07-16
EP0620675B1 (de) 2000-06-28
DE69425012D1 (de) 2000-08-03
EP0620675A2 (de) 1994-10-19
JPH06297775A (ja) 1994-10-25
EP0620675A3 (en) 1997-03-05
JP3428063B2 (ja) 2003-07-22

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: FUJIFILM CORP., TOKIO/TOKYO, JP