DK0394097T3 - Anordning til billedbehandling til gendannelse af halvtoner - Google Patents

Anordning til billedbehandling til gendannelse af halvtoner

Info

Publication number
DK0394097T3
DK0394097T3 DK90400978.4T DK90400978T DK0394097T3 DK 0394097 T3 DK0394097 T3 DK 0394097T3 DK 90400978 T DK90400978 T DK 90400978T DK 0394097 T3 DK0394097 T3 DK 0394097T3
Authority
DK
Denmark
Prior art keywords
value
prn
image
threshold
intensity
Prior art date
Application number
DK90400978.4T
Other languages
Danish (da)
English (en)
Inventor
Alain Frederic
Original Assignee
Dapplications Generales Delect
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 Dapplications Generales Delect filed Critical Dapplications Generales Delect
Application granted granted Critical
Publication of DK0394097T3 publication Critical patent/DK0394097T3/da

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
    • H04N1/405—Halftoning, i.e. converting the picture signal of a continuous-tone original into a corresponding signal showing only two levels
    • H04N1/4051—Halftoning, i.e. converting the picture signal of a continuous-tone original into a corresponding signal showing only two levels producing a dispersed dots halftone pattern, the dots having substantially the same size
    • H04N1/4052—Halftoning, i.e. converting the picture signal of a continuous-tone original into a corresponding signal showing only two levels producing a dispersed dots halftone pattern, the dots having substantially the same size by error diffusion, i.e. transferring the binarising error to neighbouring dot decisions
    • H04N1/4053—Halftoning, i.e. converting the picture signal of a continuous-tone original into a corresponding signal showing only two levels producing a dispersed dots halftone pattern, the dots having substantially the same size by error diffusion, i.e. transferring the binarising error to neighbouring dot decisions with threshold modulated relative to input image data or vice versa
    • 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
    • H04N1/405—Halftoning, i.e. converting the picture signal of a continuous-tone original into a corresponding signal showing only two levels
    • H04N1/4051—Halftoning, i.e. converting the picture signal of a continuous-tone original into a corresponding signal showing only two levels producing a dispersed dots halftone pattern, the dots having substantially the same size

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Facsimile Image Signal Circuits (AREA)
  • Image Processing (AREA)
  • Ultra Sonic Daignosis Equipment (AREA)
  • Color Image Communication Systems (AREA)
  • Eye Examination Apparatus (AREA)
  • Studio Circuits (AREA)
DK90400978.4T 1989-04-13 1990-04-10 Anordning til billedbehandling til gendannelse af halvtoner DK0394097T3 (da)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8904896A FR2646043B1 (fr) 1989-04-13 1989-04-13 Dispositif de traitement d'image pour la restitution de demi-teintes

Publications (1)

Publication Number Publication Date
DK0394097T3 true DK0394097T3 (da) 1994-07-04

Family

ID=9380687

Family Applications (1)

Application Number Title Priority Date Filing Date
DK90400978.4T DK0394097T3 (da) 1989-04-13 1990-04-10 Anordning til billedbehandling til gendannelse af halvtoner

Country Status (6)

Country Link
EP (1) EP0394097B1 (de)
AT (1) ATE102774T1 (de)
DE (1) DE69007153T2 (de)
DK (1) DK0394097T3 (de)
ES (1) ES2052205T3 (de)
FR (1) FR2646043B1 (de)

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57160264A (en) * 1981-03-30 1982-10-02 Canon Inc Recorder of half tone picture
DE3786621T2 (de) * 1986-08-25 1994-03-17 Dainippon Screen Mfg Verfahren und Vorrichtung zur Erzeugung von Bilddaten, die beim Gradationsbildaufzeichnen verwendet werden.

Also Published As

Publication number Publication date
FR2646043A1 (fr) 1990-10-19
EP0394097A1 (de) 1990-10-24
DE69007153T2 (de) 1994-08-04
FR2646043B1 (fr) 1991-08-09
EP0394097B1 (de) 1994-03-09
ATE102774T1 (de) 1994-03-15
DE69007153D1 (de) 1994-04-14
ES2052205T3 (es) 1994-07-01

Similar Documents

Publication Publication Date Title
DE69223976T2 (de) Schnellphotoautomat mit Video-Bildverarbeitung
DE69432692D1 (de) Bildverarbeitungsvorrichtung und -verfahren.
TW340979B (en) Solid-state image pickup device
KR920017260A (ko) 고체촬상장치
DE69412035T2 (de) Kaskadenartige Bildverarbeitung mit Histogrammvorhersage
DE69310049D1 (de) Verfahren und Vorrichtung zum Auffinden einer Ecke einer Struktur in zweidimensionalen Bildern
DE69427247D1 (de) Gerät zur Bildverarbeitung
ATE131297T1 (de) Einrichtung und verfahren zur farbbildverbesserung.
DE69424464D1 (de) Videobildverarbeitungssystem mit neuronalem Netzwerk
DE69231050D1 (de) Gerät zur Bildverarbeitung
WO1998010371A3 (en) Image sensor
GB2347041A (en) Method and apparatus for processing digital pixel output signals
DE68924606D1 (de) Dokumentenbildverarbeitungsgerät.
DE69013100D1 (de) Farbbildverarbeitungsgerät.
DE69115097D1 (de) Gerät zur Bildverarbeitung.
DE69418643T2 (de) Bildverarbeitungsgerät mit mehreren Funktionen
DE69203751D1 (de) Bildverarbeitungsgerät.
DE69130941D1 (de) Farbbildverarbeitungsgerät
DK0394097T3 (da) Anordning til billedbehandling til gendannelse af halvtoner
DE3485914D1 (de) Bildverarbeitungsverfahren und -geraet mit feldteilen.
DE3850758D1 (de) Bilderzeugungsgerät mit mehreren Bildverarbeitungsfunktionen.
DE69228546T2 (de) Verfahren und system zum kombinieren von signalen in einer fernsprechkonferenzschaltung
DE69529242T2 (de) Farbbildverarbeitungsverfahren und -vorrichtung mit Korrektur der schwarzen Komponente
DE3785554D1 (de) Programmverschluss fuer kamera mit objektivverschluss und vorrichtung zur verhinderung des photographierens von fremdstoffen auf dem objektiv.
DE69223691D1 (de) Farbbildverarbeitungssystem