DE3369733D1 - Gradation correction curve creating method and apparatus - Google Patents

Gradation correction curve creating method and apparatus

Info

Publication number
DE3369733D1
DE3369733D1 DE8383110988T DE3369733T DE3369733D1 DE 3369733 D1 DE3369733 D1 DE 3369733D1 DE 8383110988 T DE8383110988 T DE 8383110988T DE 3369733 T DE3369733 T DE 3369733T DE 3369733 D1 DE3369733 D1 DE 3369733D1
Authority
DE
Germany
Prior art keywords
gradation correction
correction curve
creating method
curve creating
gradation
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
Application number
DE8383110988T
Other languages
German (de)
English (en)
Inventor
Eiichi C O Fuji Photo Fil Asai
Hiroshi C O Fuji Photo Tanaka
Nobuaki C O Fuji Photo Higashi
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 Holdings 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
Application granted granted Critical
Publication of DE3369733D1 publication Critical patent/DE3369733D1/de
Expired 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
    • H04N1/407—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
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01T—MEASUREMENT OF NUCLEAR OR X-RADIATION
    • G01T1/00—Measuring X-radiation, gamma radiation, corpuscular radiation, or cosmic radiation
    • G01T1/16—Measuring radiation intensity
    • G01T1/20—Measuring radiation intensity with scintillation detectors
    • G01T1/2012—Measuring radiation intensity with scintillation detectors using stimulable phosphors, e.g. stimulable phosphor sheets
    • G01T1/2014—Reading out of stimulable sheets, e.g. latent image
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B42/00—Obtaining records using waves other than optical waves; Visualisation of such records by using optical means
    • G03B42/02—Obtaining records using waves other than optical waves; Visualisation of such records by using optical means using X-rays
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Molecular Biology (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Image Processing (AREA)
  • Facsimile Image Signal Circuits (AREA)
  • Image Analysis (AREA)
  • Analysing Materials By The Use Of Radiation (AREA)
  • Radiography Using Non-Light Waves (AREA)
  • Control Of Exposure In Printing And Copying (AREA)
  • Apparatus For Radiation Diagnosis (AREA)
DE8383110988T 1982-11-04 1983-11-03 Gradation correction curve creating method and apparatus Expired DE3369733D1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP57193770A JPS5983149A (ja) 1982-11-04 1982-11-04 階調補正曲線の作成方法

Publications (1)

Publication Number Publication Date
DE3369733D1 true DE3369733D1 (en) 1987-03-12

Family

ID=16313512

Family Applications (2)

Application Number Title Priority Date Filing Date
DE8383110988T Expired DE3369733D1 (en) 1982-11-04 1983-11-03 Gradation correction curve creating method and apparatus
DE198383110988T Pending DE110185T1 (de) 1982-11-04 1983-11-03 Verfahren und vorrichtung zur erzeugung einer gradationskorrekturfunktion.

Family Applications After (1)

Application Number Title Priority Date Filing Date
DE198383110988T Pending DE110185T1 (de) 1982-11-04 1983-11-03 Verfahren und vorrichtung zur erzeugung einer gradationskorrekturfunktion.

Country Status (4)

Country Link
US (1) US4641267A (enExample)
EP (1) EP0110185B1 (enExample)
JP (1) JPS5983149A (enExample)
DE (2) DE3369733D1 (enExample)

Families Citing this family (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6171035A (ja) * 1984-09-13 1986-04-11 富士写真フイルム株式会社 放射線画像情報再生処理条件指示装置
US4796086A (en) * 1984-11-30 1989-01-03 Fuji Photo Film Co., Ltd. Method for converting color picture signals
JPH065919B2 (ja) * 1985-02-15 1994-01-19 コニカ株式会社 放射線画像の階調処理方法
JPS6217875A (ja) * 1985-07-15 1987-01-26 Konishiroku Photo Ind Co Ltd Ｘ線画像の画像処理装置
DE3778602D1 (de) * 1986-07-18 1992-06-04 Dainippon Screen Mfg Bild-datenverarbeitungsverfahren und anordnung dafuer.
JPS6376077A (ja) * 1986-09-19 1988-04-06 Fujitsu Ltd 画像処理装置における画像濃度変換方式
JPS63309077A (ja) * 1987-06-11 1988-12-16 Seikosha Co Ltd ビデオプリンタ
US4786968A (en) * 1987-07-16 1988-11-22 Sony Corporation Gamma correction of digital video data by calculating linearly interpolated gamma correction values
US4937682A (en) * 1988-12-28 1990-06-26 Hewlett-Packard Company Method and apparatus for providing contrast/intensity control in a document scanner
US5046118A (en) * 1990-02-06 1991-09-03 Eastman Kodak Company Tone-scale generation method and apparatus for digital x-ray images
JPH04192672A (ja) * 1990-11-24 1992-07-10 Dainippon Screen Mfg Co Ltd 画像処理方法
US5255085A (en) * 1991-10-25 1993-10-19 Eastman Kodak Company Adaptive technique for providing accurate tone reproduction control in an imaging system
EP0557099B1 (en) * 1992-02-21 1999-07-07 Canon Kabushiki Kaisha Image processing apparatus and method
JP3083207B2 (ja) * 1992-07-13 2000-09-04 京セラミタ株式会社 画像形成装置
FR2695282B1 (fr) * 1992-09-01 1994-10-14 Gen Electric Cgr Procédé de réglage de contraste.
JPH06175452A (ja) * 1992-12-11 1994-06-24 Matsushita Electric Ind Co Ltd 電子写真装置
IL119767A (en) * 1993-08-13 1998-02-08 Sophis View Tech Ltd System and method for diagnosis of living tissue diseases
US5796865A (en) * 1994-07-04 1998-08-18 Fuji Photo Film Co., Ltd. Gradation correcting method and apparatus
AU4594796A (en) * 1994-11-25 1996-06-19 Yuriy Alexandrov System and method for diagnosis of living tissue diseases
US5761333A (en) * 1995-01-31 1998-06-02 General Electric Company Contrast enhancement for CT systems
US5633511A (en) * 1995-12-22 1997-05-27 Eastman Kodak Company Automatic tone scale adjustment using image activity measures
JPH1023262A (ja) 1996-06-28 1998-01-23 Toshiba Corp 画像形成装置
JP3075247B2 (ja) * 1998-01-09 2000-08-14 日本電気株式会社 カラー電子写真印刷装置
US6370265B1 (en) 1999-11-24 2002-04-09 Direct Radiography Corp. Method for generating gray scale transfer functions for use in displaying a digital radiogram
DE10213284B4 (de) * 2002-03-25 2007-11-08 Siemens Ag Verfahren zur Bilddarstellung in der medizinischen Bildgebung
JP4323770B2 (ja) * 2002-10-18 2009-09-02 キヤノン株式会社 画像処理装置、画像処理方法、プログラム及び記録媒体
US8559750B2 (en) * 2010-11-08 2013-10-15 Lg Innotek Co., Ltd. Method of performing adaptive contrast enhancement using hyperbolic tangent curve and image histogram
WO2014083459A1 (en) 2012-11-29 2014-06-05 Controlrad Systems Inc. X-ray reduction system

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4149076A (en) * 1976-04-05 1979-04-10 Albert Richard D Method and apparatus producing plural images of different contrast range by X-ray scanning
DE2816462A1 (de) * 1978-04-15 1979-10-25 Philips Patentverwaltung Verfahren zur erzeugung verbesserter rekonstruktionsbilder in computer-tomographiegeraeten
US4315318A (en) * 1978-12-26 1982-02-09 Fuji Photo Film Co., Ltd. Method and apparatus for processing a radiation image
JPS5588740A (en) * 1978-12-26 1980-07-04 Fuji Photo Film Co Ltd Method of treating gradation of radiation picture of breast and its device
JPS55116340A (en) * 1979-02-28 1980-09-06 Fuji Photo Film Co Ltd Method and device for processing gradation of radiation picture
FR2461279B1 (fr) * 1979-07-11 1987-01-02 Fuji Photo Film Co Ltd Procede de traitement d'une image radiographique
JPS56104645A (en) * 1979-12-25 1981-08-20 Fuji Photo Film Co Ltd Radiation picture treating method and its device
JPS5691735A (en) * 1979-12-25 1981-07-24 Fuji Photo Film Co Ltd Method and apparatus for treating xxray image
JPS56121171A (en) * 1980-02-27 1981-09-22 Dainippon Screen Mfg Co Ltd Input device for set item data in picture scanning recorder and filing method for said set item data
US4405920A (en) * 1980-12-31 1983-09-20 Naomi Weisstein Enhancing the perceptibility of barely perceptible images
JPS57168579A (en) * 1981-04-08 1982-10-16 Fuji Photo Film Co Ltd Method and device for reading of picture information
JPS5814270A (ja) * 1981-07-17 1983-01-27 Fuji Photo Film Co Ltd 画像走査記録方法
US4450478A (en) * 1981-09-09 1984-05-22 Georgetown University Digital fluorographic method and system

Also Published As

Publication number Publication date
JPS5983149A (ja) 1984-05-14
US4641267A (en) 1987-02-03
EP0110185B1 (en) 1987-02-04
JPH0526138B2 (enExample) 1993-04-15
DE110185T1 (de) 1984-10-11
EP0110185A1 (en) 1984-06-13

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition