DE3066540D1 - System for the visualisation of numerical images, especially for their reproduction by photography, comprising a device for half-tone correction - Google Patents

System for the visualisation of numerical images, especially for their reproduction by photography, comprising a device for half-tone correction

Info

Publication number
DE3066540D1
DE3066540D1 DE8080400387T DE3066540T DE3066540D1 DE 3066540 D1 DE3066540 D1 DE 3066540D1 DE 8080400387 T DE8080400387 T DE 8080400387T DE 3066540 T DE3066540 T DE 3066540T DE 3066540 D1 DE3066540 D1 DE 3066540D1
Authority
DE
Germany
Prior art keywords
visualisation
photography
reproduction
tone correction
numerical images
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
DE8080400387T
Other languages
German (de)
English (en)
Inventor
Remy Klausz
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.)
Thales SA
Original Assignee
Thomson CSF SA
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 Thomson CSF SA filed Critical Thomson CSF SA
Application granted granted Critical
Publication of DE3066540D1 publication Critical patent/DE3066540D1/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
    • H04N1/4076—Control or modification of tonal gradation or of extreme levels, e.g. background level dependent on references outside the picture
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; 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 OR CALCULATING; COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T2207/00—Indexing scheme for image analysis or image enhancement
    • G06T2207/10—Image acquisition modality
    • G06T2207/10072—Tomographic images

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Apparatus For Radiation Diagnosis (AREA)
  • Closed-Circuit Television Systems (AREA)
  • Controls And Circuits For Display Device (AREA)
DE8080400387T 1979-03-23 1980-03-21 System for the visualisation of numerical images, especially for their reproduction by photography, comprising a device for half-tone correction Expired DE3066540D1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7907389A FR2452221A1 (fr) 1979-03-23 1979-03-23 Dispositif de correction des demi-teintes dans un systeme de visualisation d'images numeriques, notamment pour leur reproduction par photographie, et systeme de visualisation comportant un tel dispositif

Publications (1)

Publication Number Publication Date
DE3066540D1 true DE3066540D1 (en) 1984-03-22

Family

ID=9223494

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8080400387T Expired DE3066540D1 (en) 1979-03-23 1980-03-21 System for the visualisation of numerical images, especially for their reproduction by photography, comprising a device for half-tone correction

Country Status (3)

Country Link
EP (1) EP0017553B1 (enExample)
DE (1) DE3066540D1 (enExample)
FR (1) FR2452221A1 (enExample)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4496968A (en) * 1981-07-14 1985-01-29 Crosfield Electronics Limited Reproduction of colored images
US4617592A (en) * 1982-03-11 1986-10-14 Crosfield Electronics Limited Video retouching system
JPS6064386A (ja) * 1983-09-20 1985-04-12 株式会社東芝 画像表示装置
US4829584A (en) * 1985-03-26 1989-05-09 Dainippon Screen Mfg. Co., Ltd. Image input system
DE3750013T2 (de) 1986-10-20 1994-09-29 Fuji Photo Film Co Ltd Laserstrahlabtastverfahren und -vorrichtung.
GB8800503D0 (en) * 1988-01-11 1988-02-10 Crosfield Electronics Ltd Apparatus for generating two-dimensional coloured display

Also Published As

Publication number Publication date
FR2452221A1 (fr) 1980-10-17
FR2452221B1 (enExample) 1983-04-29
EP0017553B1 (fr) 1984-02-15
EP0017553A1 (fr) 1980-10-15

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