WO1990009075A3 - Formation de demi-teintes numeriques par diffusion d'erreur - Google Patents

Formation de demi-teintes numeriques par diffusion d'erreur Download PDF

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Publication number
WO1990009075A3
WO1990009075A3 PCT/US1990/000372 US9000372W WO9009075A3 WO 1990009075 A3 WO1990009075 A3 WO 1990009075A3 US 9000372 W US9000372 W US 9000372W WO 9009075 A3 WO9009075 A3 WO 9009075A3
Authority
WO
WIPO (PCT)
Prior art keywords
error diffusion
error
digital halftoning
binary
image
Prior art date
Application number
PCT/US1990/000372
Other languages
English (en)
Other versions
WO1990009075A2 (fr
Inventor
James R Sullivan
Original Assignee
Eastman Kodak Co
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 Eastman Kodak Co filed Critical Eastman Kodak Co
Priority to EP90902910A priority Critical patent/EP0408728B1/fr
Priority to DE69029229T priority patent/DE69029229T2/de
Publication of WO1990009075A2 publication Critical patent/WO1990009075A2/fr
Publication of WO1990009075A3 publication Critical patent/WO1990009075A3/fr

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

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Image Processing (AREA)
  • Facsimile Image Signal Circuits (AREA)

Abstract

On a amélioré un procédé de rendu des demi-teintes créant une image binaire à partir d'une image de teinte continue ou d'un signal graphique produit par ordinateur, en incluant la fonction humaine visuelle de flou dans un algorithme de propagation d'erreur récursif, de sorte que l'erreur perçue plutôt que l'erreur binaire soit propagée.
PCT/US1990/000372 1989-01-30 1990-01-23 Formation de demi-teintes numeriques par diffusion d'erreur WO1990009075A2 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP90902910A EP0408728B1 (fr) 1989-01-30 1990-01-23 Formation de demi-teintes numeriques par diffusion d'erreur
DE69029229T DE69029229T2 (de) 1989-01-30 1990-01-23 Digitale halbtonrasterung mit fehlerdiffusion

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US07/303,205 US5051844A (en) 1989-01-30 1989-01-30 Digital halftoning with error diffusion
US303,205 1989-01-30

Publications (2)

Publication Number Publication Date
WO1990009075A2 WO1990009075A2 (fr) 1990-08-09
WO1990009075A3 true WO1990009075A3 (fr) 1990-09-20

Family

ID=23171002

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1990/000372 WO1990009075A2 (fr) 1989-01-30 1990-01-23 Formation de demi-teintes numeriques par diffusion d'erreur

Country Status (5)

Country Link
US (1) US5051844A (fr)
EP (1) EP0408728B1 (fr)
JP (1) JPH03503712A (fr)
DE (1) DE69029229T2 (fr)
WO (1) WO1990009075A2 (fr)

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EP2433295A2 (fr) * 2009-05-20 2012-03-28 Mapper Lithography IP B.V. Balayage à double passage
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Also Published As

Publication number Publication date
DE69029229D1 (de) 1997-01-09
WO1990009075A2 (fr) 1990-08-09
US5051844A (en) 1991-09-24
EP0408728A1 (fr) 1991-01-23
EP0408728B1 (fr) 1996-11-27
JPH03503712A (ja) 1991-08-15
DE69029229T2 (de) 1997-05-28

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