JPS6450171A - Method for determining desired picture signal range - Google Patents

Method for determining desired picture signal range

Info

Publication number
JPS6450171A
JPS6450171A JP62207212A JP20721287A JPS6450171A JP S6450171 A JPS6450171 A JP S6450171A JP 62207212 A JP62207212 A JP 62207212A JP 20721287 A JP20721287 A JP 20721287A JP S6450171 A JPS6450171 A JP S6450171A
Authority
JP
Japan
Prior art keywords
picture
signal
threshold value
omission
parts
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.)
Granted
Application number
JP62207212A
Other languages
English (en)
Other versions
JP2631663B2 (ja
Inventor
Yuma Adachi
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
Priority to JP62207212A priority Critical patent/JP2631663B2/ja
Priority to DE3854639T priority patent/DE3854639T2/de
Priority to EP88113518A priority patent/EP0308655B1/en
Priority to US07/234,861 priority patent/US4905149A/en
Publication of JPS6450171A publication Critical patent/JPS6450171A/ja
Application granted granted Critical
Publication of JP2631663B2 publication Critical patent/JP2631663B2/ja
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • G06T5/40—Image enhancement or restoration using histogram techniques
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T5/00—Image enhancement or restoration
    • G06T5/90—Dynamic range modification of images or parts thereof
    • G06T5/92—Dynamic range modification of images or parts thereof based on global image properties
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T7/00—Image analysis
    • G06T7/10—Segmentation; Edge detection
    • G06T7/136—Segmentation; Edge detection involving thresholding
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V10/00—Arrangements for image or video recognition or understanding
    • G06V10/20—Image preprocessing
    • G06V10/28—Quantising the image, e.g. histogram thresholding for discrimination between background and foreground patterns
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T2207/00—Indexing scheme for image analysis or image enhancement
    • G06T2207/30—Subject of image; Context of image processing
    • G06T2207/30004—Biomedical image processing

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Multimedia (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Image Analysis (AREA)
  • Image Processing (AREA)
  • Apparatus For Radiation Diagnosis (AREA)
  • Radiography Using Non-Light Waves (AREA)
  • Transforming Light Signals Into Electric Signals (AREA)
  • Image Input (AREA)
JP62207212A 1987-08-20 1987-08-20 所望画像信号範囲決定方法 Expired - Fee Related JP2631663B2 (ja)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP62207212A JP2631663B2 (ja) 1987-08-20 1987-08-20 所望画像信号範囲決定方法
DE3854639T DE3854639T2 (de) 1987-08-20 1988-08-19 Verfahren zur Bestimmung des gewünschten Bildsignalbereichs.
EP88113518A EP0308655B1 (en) 1987-08-20 1988-08-19 Method of determining desired image signal range
US07/234,861 US4905149A (en) 1987-08-20 1988-08-22 Method of determining desired image signal range

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62207212A JP2631663B2 (ja) 1987-08-20 1987-08-20 所望画像信号範囲決定方法

Publications (2)

Publication Number Publication Date
JPS6450171A true JPS6450171A (en) 1989-02-27
JP2631663B2 JP2631663B2 (ja) 1997-07-16

Family

ID=16536095

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62207212A Expired - Fee Related JP2631663B2 (ja) 1987-08-20 1987-08-20 所望画像信号範囲決定方法

Country Status (4)

Country Link
US (1) US4905149A (ja)
EP (1) EP0308655B1 (ja)
JP (1) JP2631663B2 (ja)
DE (1) DE3854639T2 (ja)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02272534A (ja) * 1989-04-14 1990-11-07 Fuji Photo Film Co Ltd 被写体像内画像点決定方法
JPH07219088A (ja) * 1994-01-31 1995-08-18 Hitachi Cable Ltd Ｘ線フィルム検査装置及び電力ケーブルのｘ線検査方法
JP2000155838A (ja) * 1998-09-18 2000-06-06 Canon Inc 画像処理装置、方法及びコンピュ―タ読み取り可能な記憶媒体
JP2015043792A (ja) * 2013-08-27 2015-03-12 富士フイルム株式会社 画像領域指定装置および方法、並びに放射線画像処理装置および方法

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0789371B2 (ja) * 1988-09-28 1995-09-27 富士写真フイルム株式会社 所望画像信号範囲決定方法
JPH04255989A (ja) * 1991-02-07 1992-09-10 Mitsubishi Electric Corp 半導体記憶装置および内部電圧発生方法
JP4094178B2 (ja) 1998-08-26 2008-06-04 富士フイルム株式会社 放射線画像検出装置
US20080065606A1 (en) * 2006-09-08 2008-03-13 Donald Robert Martin Boys Method and Apparatus for Searching Images through a Search Engine Interface Using Image Data and Constraints as Input

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57163806A (en) * 1981-04-01 1982-10-08 Mitsubishi Electric Corp Shape detector
CA1203922A (en) * 1981-10-16 1986-04-29 Fuji Photo Film Co., Ltd. Radiation image read-out method and apparatus
JPS60156055A (ja) * 1984-01-26 1985-08-16 Fuji Photo Film Co Ltd 放射線画像情報読取条件決定方法
DE3588169T2 (de) * 1984-07-31 1998-02-19 Fuji Photo Film Co Ltd Verfahren zur Detektion einer Bildbelichtungsfläche in einem Bildauslesevorgang
JPS61170178A (ja) * 1985-01-24 1986-07-31 Fuji Photo Film Co Ltd 放射線画像情報の読取条件決定方法
JPS6239842A (ja) * 1985-08-15 1987-02-20 Fuji Photo Film Co Ltd 放射線画像情報読取方法
JPS63314071A (ja) * 1987-06-17 1988-12-22 Dainippon Screen Mfg Co Ltd 画像読取装置の２値化処理方法

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02272534A (ja) * 1989-04-14 1990-11-07 Fuji Photo Film Co Ltd 被写体像内画像点決定方法
JPH07219088A (ja) * 1994-01-31 1995-08-18 Hitachi Cable Ltd Ｘ線フィルム検査装置及び電力ケーブルのｘ線検査方法
JP2000155838A (ja) * 1998-09-18 2000-06-06 Canon Inc 画像処理装置、方法及びコンピュ―タ読み取り可能な記憶媒体
JP2015043792A (ja) * 2013-08-27 2015-03-12 富士フイルム株式会社 画像領域指定装置および方法、並びに放射線画像処理装置および方法

Also Published As

Publication number Publication date
US4905149A (en) 1990-02-27
EP0308655A3 (en) 1991-07-03
EP0308655B1 (en) 1995-11-02
EP0308655A2 (en) 1989-03-29
DE3854639T2 (de) 1996-03-21
DE3854639D1 (de) 1995-12-07
JP2631663B2 (ja) 1997-07-16

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