ATE102774T1 - Bildverarbeitungseinrichtung zur gerasterten halbtonreproduktion. - Google Patents

Bildverarbeitungseinrichtung zur gerasterten halbtonreproduktion.

Info

Publication number
ATE102774T1
ATE102774T1 AT90400978T AT90400978T ATE102774T1 AT E102774 T1 ATE102774 T1 AT E102774T1 AT 90400978 T AT90400978 T AT 90400978T AT 90400978 T AT90400978 T AT 90400978T AT E102774 T1 ATE102774 T1 AT E102774T1
Authority
AT
Austria
Prior art keywords
value
prn
image
contone
diagrammed
Prior art date
Application number
AT90400978T
Other languages
English (en)
Inventor
Alain Frederic
Original Assignee
Sagem
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 Sagem filed Critical Sagem
Application granted granted Critical
Publication of ATE102774T1 publication Critical patent/ATE102774T1/de

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)
  • Studio Circuits (AREA)
  • Color Image Communication Systems (AREA)
  • Eye Examination Apparatus (AREA)
AT90400978T 1989-04-13 1990-04-10 Bildverarbeitungseinrichtung zur gerasterten halbtonreproduktion. ATE102774T1 (de)

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
ATE102774T1 true ATE102774T1 (de) 1994-03-15

Family

ID=9380687

Family Applications (1)

Application Number Title Priority Date Filing Date
AT90400978T ATE102774T1 (de) 1989-04-13 1990-04-10 Bildverarbeitungseinrichtung zur gerasterten halbtonreproduktion.

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
EP0394097B1 (de) 1994-03-09
FR2646043A1 (fr) 1990-10-19
DE69007153D1 (de) 1994-04-14
DK0394097T3 (da) 1994-07-04
DE69007153T2 (de) 1994-08-04
ES2052205T3 (es) 1994-07-01
FR2646043B1 (fr) 1991-08-09
EP0394097A1 (de) 1990-10-24

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Legal Events

Date Code Title Description
REN Ceased due to non-payment of the annual fee