FR2700230B1 - Procédé de contrôle de dynamique d'un signal vidéo. - Google Patents

Procédé de contrôle de dynamique d'un signal vidéo.

Info

Publication number
FR2700230B1
FR2700230B1 FR9401017A FR9401017A FR2700230B1 FR 2700230 B1 FR2700230 B1 FR 2700230B1 FR 9401017 A FR9401017 A FR 9401017A FR 9401017 A FR9401017 A FR 9401017A FR 2700230 B1 FR2700230 B1 FR 2700230B1
Authority
FR
France
Prior art keywords
dynamics
controlling
video signal
video
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 - Fee Related
Application number
FR9401017A
Other languages
English (en)
Other versions
FR2700230A1 (fr
Inventor
Herscovich Israel
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.)
Israel Ministry of Defence
Defence Israel
Original Assignee
Israel Ministry of Defence
Defence Israel
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 IL10290492A external-priority patent/IL102904A/en
Application filed by Israel Ministry of Defence, Defence Israel filed Critical Israel Ministry of Defence
Publication of FR2700230A1 publication Critical patent/FR2700230A1/fr
Application granted granted Critical
Publication of FR2700230B1 publication Critical patent/FR2700230B1/fr
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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N17/00—Diagnosis, testing or measuring for television systems or their details
    • H04N17/04—Diagnosis, testing or measuring for television systems or their details for receivers
    • H04N17/045—Self-contained testing apparatus
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/14—Picture signal circuitry for video frequency region
    • H04N5/20—Circuitry for controlling amplitude response
    • 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
    • G06T2207/10—Image acquisition modality
    • G06T2207/10016—Video; Image sequence

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
  • General Health & Medical Sciences (AREA)
  • Image Processing (AREA)
  • Picture Signal Circuits (AREA)
FR9401017A 1992-08-21 1994-01-31 Procédé de contrôle de dynamique d'un signal vidéo. Expired - Fee Related FR2700230B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IL10290492A IL102904A (en) 1992-08-21 1992-08-21 Configurable imaging processor
FR9310180A FR2695229B1 (fr) 1992-08-21 1993-08-23 Appareil de traitement d'un signal video, processeur d'imagerie et procede de controle de dynamique d'un signal video.

Publications (2)

Publication Number Publication Date
FR2700230A1 FR2700230A1 (fr) 1994-07-08
FR2700230B1 true FR2700230B1 (fr) 1995-09-29

Family

ID=26230567

Family Applications (1)

Application Number Title Priority Date Filing Date
FR9401017A Expired - Fee Related FR2700230B1 (fr) 1992-08-21 1994-01-31 Procédé de contrôle de dynamique d'un signal vidéo.

Country Status (1)

Country Link
FR (1) FR2700230B1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6512853B2 (en) 1995-08-14 2003-01-28 Barkfort Limited Method and apparatus for compressing digital image data
DE69610987T2 (de) * 1995-08-14 2001-05-23 Barkfort Ltd Verfahren und vorrichtung zur kompression von digitalen bilddaten
US6449390B1 (en) 1997-09-24 2002-09-10 Canon Kabushiki Kaisha Image processing apparatus and method therefor

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IL58119A (en) * 1979-08-27 1983-03-31 Yeda Res & Dev Histogram image enhancement system
JPS63167983A (ja) * 1986-12-29 1988-07-12 Fuji Electric Co Ltd Ｌｕｔ自動設定方式
JPH04271669A (ja) * 1991-02-27 1992-09-28 Matsushita Electric Ind Co Ltd 階調補正装置

Also Published As

Publication number Publication date
FR2700230A1 (fr) 1994-07-08

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Legal Events

Date Code Title Description
ST Notification of lapse