DE3751412D1 - Verfahren und Vorrichtung zur Bildverarbeitung mit Gradationskorrektur des Bildsignals. - Google Patents

Verfahren und Vorrichtung zur Bildverarbeitung mit Gradationskorrektur des Bildsignals.

Info

Publication number
DE3751412D1
DE3751412D1 DE3751412T DE3751412T DE3751412D1 DE 3751412 D1 DE3751412 D1 DE 3751412D1 DE 3751412 T DE3751412 T DE 3751412T DE 3751412 T DE3751412 T DE 3751412T DE 3751412 D1 DE3751412 D1 DE 3751412D1
Authority
DE
Germany
Prior art keywords
gradation correction
image processing
image signal
image
signal
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
DE3751412T
Other languages
English (en)
Other versions
DE3751412T2 (de
Inventor
Sestuji Fuji Photo Fil Tatsumi
Kazuo Fuji Photo Film C Shiota
Hitoshi Fuji Photo Film Urabe
Osamu Fuji Photo Fil Shimazaki
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
Priority claimed from JP61205175A external-priority patent/JP2527165B2/ja
Priority claimed from JP61205173A external-priority patent/JPS6361578A/ja
Priority claimed from JP61205176A external-priority patent/JPH0724424B2/ja
Priority claimed from JP61205174A external-priority patent/JPS6361579A/ja
Application filed by Fuji Photo Film Co Ltd filed Critical Fuji Photo Film Co Ltd
Application granted granted Critical
Publication of DE3751412D1 publication Critical patent/DE3751412D1/de
Publication of DE3751412T2 publication Critical patent/DE3751412T2/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
    • H04N1/46—Colour picture communication systems
    • H04N1/56—Processing of colour picture signals
    • H04N1/60—Colour correction or control
    • H04N1/6027—Correction or control of colour gradation or colour contrast
    • 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
    • H04N1/407—Control or modification of tonal gradation or of extreme levels, e.g. background level
    • H04N1/4072—Control or modification of tonal gradation or of extreme levels, e.g. background level dependent on the contents of the original
    • H04N1/4074—Control or modification of tonal gradation or of extreme levels, e.g. background level dependent on the contents of the original using histograms

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Facsimile Image Signal Circuits (AREA)
DE3751412T 1986-09-02 1987-08-19 Verfahren und Vorrichtung zur Bildverarbeitung mit Gradationskorrektur des Bildsignals. Expired - Lifetime DE3751412T2 (de)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP61205175A JP2527165B2 (ja) 1986-09-02 1986-09-02 画像処理方法及び装置
JP61205173A JPS6361578A (ja) 1986-09-02 1986-09-02 画像処理方法及び装置
JP61205176A JPH0724424B2 (ja) 1986-09-02 1986-09-02 画像処理方法及び装置
JP61205174A JPS6361579A (ja) 1986-09-02 1986-09-02 画像処理方法及び装置

Publications (2)

Publication Number Publication Date
DE3751412D1 true DE3751412D1 (de) 1995-08-24
DE3751412T2 DE3751412T2 (de) 1995-12-14

Family

ID=27476242

Family Applications (1)

Application Number Title Priority Date Filing Date
DE3751412T Expired - Lifetime DE3751412T2 (de) 1986-09-02 1987-08-19 Verfahren und Vorrichtung zur Bildverarbeitung mit Gradationskorrektur des Bildsignals.

Country Status (3)

Country Link
US (1) US4899216A (de)
EP (1) EP0258740B1 (de)
DE (1) DE3751412T2 (de)

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US5073818A (en) * 1987-12-23 1991-12-17 Minolta Camera Kabushiki Kaisha Method for processing color image and apparatus therefor
JPH06101799B2 (ja) * 1988-10-28 1994-12-12 富士ゼロックス株式会社 画像形成装置のグレイバランス制御方式
JPH0683373B2 (ja) * 1988-12-09 1994-10-19 大日本スクリーン製造株式会社 基準濃度点の設定方法
US5012333A (en) * 1989-01-05 1991-04-30 Eastman Kodak Company Interactive dynamic range adjustment system for printing digital images
JPH02275587A (ja) * 1989-04-18 1990-11-09 Fuji Photo Film Co Ltd 医療用画像表示装置
EP0395452B1 (de) * 1989-04-28 1997-07-02 Canon Kabushiki Kaisha Bildverarbeitungsgerät
JP2887158B2 (ja) * 1989-06-14 1999-04-26 富士ゼロックス株式会社 画像処理装置
US5053866A (en) * 1989-08-02 1991-10-01 Eastman Kodak Company Method and an associated apparatus for calibrating a color digital hardcopy device
US5117293A (en) * 1989-11-28 1992-05-26 Dainippon Screen Mfg. Co. Ltd. Method of and apparatus for generating conversion curve employable for converting reproduction characteristic of image
US5208664A (en) * 1990-05-16 1993-05-04 Matsushita Electric Industrial Co., Ltd. Image reading method and apparatus with coordination function between read value and original density
US5121198A (en) * 1990-06-28 1992-06-09 Eastman Kodak Company Method of setting the contrast of a color video picture in a computer controlled photographic film analyzing system
EP0703701A3 (de) * 1990-09-28 1996-06-12 Eastman Kodak Co Farbbildverarbeitungssystem und Verfahren zur Vorbereitung eines zusammengesetzten Bildtransformationsmoduls für mehrere ausgewählte Bildtransformationen
US5374954A (en) * 1990-10-11 1994-12-20 Harry E. Mowry Video system for producing video image simulating the appearance of motion picture or other photographic film
US5388168A (en) * 1990-11-19 1995-02-07 Matsushita Electric Industrial Co., Ltd. Picture quality improving circuit using a cumulative histogram
US5138459A (en) * 1990-11-20 1992-08-11 Personal Computer Cameras, Inc. Electronic still video camera with direct personal computer (pc) compatible digital format output
US5465111A (en) * 1991-06-14 1995-11-07 Canon Kabushiki Kaisha Method and apparatus for correcting image formation using fuzzy logic
JPH0654195A (ja) * 1992-02-28 1994-02-25 Eastman Kodak Co マイクロフィルム画質を改良させる画像スキャナシステム及び方法
JPH05316446A (ja) * 1992-05-08 1993-11-26 Matsushita Electric Ind Co Ltd 階調補正装置
JP3241157B2 (ja) * 1993-04-19 2001-12-25 富士写真フイルム株式会社 網点画像データ補正方法および補正機能を有する画像処理装置
JP3109421B2 (ja) * 1995-09-08 2000-11-13 富士ゼロックス株式会社 図表処理装置
JPH09130605A (ja) * 1995-10-31 1997-05-16 Fuji Photo Film Co Ltd 網点画像出力方法およびその装置
JPH1013682A (ja) * 1996-06-21 1998-01-16 Nikon Corp 画像処理方法
US6373533B1 (en) 1997-03-06 2002-04-16 Matsushita Electric Industrial Co., Ltd. Image quality correction circuit for video signals
US6738527B2 (en) 1997-06-09 2004-05-18 Seiko Epson Corporation Image processing apparatus, an image processing method, a medium on which an image processing control program is recorded, an image evaluation device, and image evaluation method and a medium on which an image evaluation program is recorded
US6141114A (en) * 1998-01-08 2000-10-31 Xerox Corporation Edge enhanced error diffusion with artifact correction in areas of highlights and shadows
JP2000236442A (ja) * 1999-02-15 2000-08-29 Canon Inc 画像処理装置及びその方法、コンピュータ可読メモリ
US7092122B2 (en) * 2000-07-18 2006-08-15 Fuji Photo Film Co., Ltd. Image processing device and method
JP2004524617A (ja) * 2001-02-14 2004-08-12 クリアスピード・テクノロジー・リミテッド クロック分配システム
JP3720275B2 (ja) * 2001-04-16 2005-11-24 シャープ株式会社 画像表示パネル、画像表示装置、並びに画像表示方法
JP4155233B2 (ja) * 2004-06-24 2008-09-24 株式会社日立製作所 映像表示装置
US8203563B2 (en) * 2006-06-16 2012-06-19 Nvidia Corporation System, method, and computer program product for adjusting a programmable graphics/audio processor based on input and output parameters
WO2009054527A1 (ja) * 2007-10-26 2009-04-30 Taiyo Yuden Co., Ltd. 映像表示装置および方法およびこれに組み込まれる信号処理回路および液晶バックライト駆動装置
JP6852411B2 (ja) * 2017-01-19 2021-03-31 ソニー株式会社 映像信号処理装置、映像信号処理方法およびプログラム
CN110084769B (zh) * 2019-05-20 2023-05-23 佛山光微科技有限公司 一种基于直方图统计的oct视频图像自适应增强方法

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4346402A (en) * 1979-05-30 1982-08-24 Crosfield Electronics Limited Image-reproduction apparatus
JPS5677846A (en) * 1979-11-29 1981-06-26 Toppan Printing Co Ltd Television video master making device
JPS5687044A (en) * 1979-12-17 1981-07-15 Dainippon Screen Mfg Co Ltd Method of determining adjusting items in image scanning recorder
JPS5688138A (en) * 1979-12-21 1981-07-17 Dainippon Screen Mfg Co Ltd Forming method of memory table
JPS56102853A (en) * 1980-01-21 1981-08-17 Dainippon Screen Mfg Co Ltd Metho for pretreating image signal of image copying apparatus
JPS56128947A (en) * 1980-03-13 1981-10-08 Dainippon Screen Mfg Co Ltd Method of setting highlight and shadow point density value of original picture to picture scanning recorder
DE3364249D1 (en) * 1982-03-30 1986-07-31 Crosfield Electronics Ltd Video retouching systems
JPS58215653A (ja) * 1982-06-08 1983-12-15 Dainippon Screen Mfg Co Ltd 多色印刷物再現色表示装置
JPH0748795B2 (ja) * 1982-07-09 1995-05-24 富士写真フイルム株式会社 画像入出力装置
JPS5954376A (ja) * 1982-09-21 1984-03-29 Konishiroku Photo Ind Co Ltd 画像処理方法
JPS59163953A (ja) * 1983-03-08 1984-09-17 Canon Inc 画像処理装置
US4667228A (en) * 1983-10-14 1987-05-19 Canon Kabushiki Kaisha Image signal processing apparatus
DE3577362D1 (de) * 1984-02-20 1990-05-31 Konishiroku Photo Ind Verfahren zur feststellung der bilddichte einer vorlage und deren kopierung.
US4727434A (en) * 1984-03-14 1988-02-23 Canon Kabushiki Kaisha Image processing apparatus for rapid production of a hard copy of a video image in which input image signal processing parameters are set while a record medium is being positioned at a recording position
DE3583065D1 (de) * 1984-04-23 1991-07-11 Fuji Photo Film Co Ltd Schwaerzungsgrad-korrekturverfahren sowie vorrichtung fuer subtraktionsbilder.
US4639769A (en) * 1985-04-01 1987-01-27 Eastman Kodak Company Modifying color digital images
US4642683A (en) * 1985-05-06 1987-02-10 Eastman Kodak Company Digital image processing method for images with bimodal tone value distribution
JPS62111570A (ja) * 1985-11-09 1987-05-22 Fuji Photo Film Co Ltd 画像入出力システムにおける出力信号処理条件の自動設定方法

Also Published As

Publication number Publication date
DE3751412T2 (de) 1995-12-14
US4899216A (en) 1990-02-06
EP0258740B1 (de) 1995-07-19
EP0258740A3 (en) 1989-10-11
EP0258740A2 (de) 1988-03-09

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Legal Events

Date Code Title Description
8381 Inventor (new situation)

Free format text: TATSUMI, SETSUJI FUJI PHOTO FILM CO. LTD., KAISEI-MACHI ASHIGARA-KAMI-GUN KANAGAWA, JP SHIOTA, KAZUOFUJI PHOTO FILM CO. LTD., KAISEI-MACHI ASHIGARA-KAMI-GUN KANAGAWA, JP URABE, HITOSHI FUJI PHOTO FIL M CO. LTD., KAISEI-MACHI ASHIGARA-KAMI-GUN KANAGAWA, JP SHIMAZAKI, OSAMU FUJI PHOTO FILM CO. LTD., KAISEI-MACHI ASHIGARA-KAMI-GUN KANAGAWA, JP

Free format text: TATSUMI, SETSUJI FUJI PHOTO FILM CO. LTD., KAISEI-MACHI ASHIGARA-KAMI-GUN KANAGAWA, JP SHIOTA, KAZUO FUJI PHOTO FILM CO. LTD., KAISEI-MACHI ASHIGARA-KAMI-GUN KANAGAWA, JP URABE, HITOSHI FUJI PHOTO FILM CO. LTD., KAISEI-MACHI ASHIGARA-KAMI-GUN KANAGAWA, JP SHIMAZAKI, OSAMU FUJI PHOTO FILM CO. LTD., KAISEI-MACHI ASHIGARA-KAMI-GUN KANAGAWA, JP

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