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WO1992010057A3 - Appareil et procede d'impression - Google Patents

Appareil et procede d'impression Download PDF

Info

Publication number
WO1992010057A3
WO1992010057A3 PCT/US1991/006892 US9106892W WO9210057A3 WO 1992010057 A3 WO1992010057 A3 WO 1992010057A3 US 9106892 W US9106892 W US 9106892W WO 9210057 A3 WO9210057 A3 WO 9210057A3
Authority
WO
WIPO (PCT)
Prior art keywords
area modulation
hardcopy
image
printing apparatus
pixel
Prior art date
Application number
PCT/US1991/006892
Other languages
English (en)
Other versions
WO1992010057A2 (fr
Inventor
Janet A Allen
Daniel P Bybell
Dana F Schuh
Jay E Thornton
Original Assignee
Polaroid Corp
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 Polaroid Corp filed Critical Polaroid Corp
Publication of WO1992010057A2 publication Critical patent/WO1992010057A2/fr
Publication of WO1992010057A3 publication Critical patent/WO1992010057A3/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
    • H04N1/4055—Halftoning, i.e. converting the picture signal of a continuous-tone original into a corresponding signal showing only two levels producing a clustered dots or a size modulated halftone pattern

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Image Processing (AREA)
  • Laser Beam Printer (AREA)
  • Measuring And Recording Apparatus For Diagnosis (AREA)
  • Facsimile Image Signal Circuits (AREA)
  • Apparatus For Radiation Diagnosis (AREA)

Abstract

Appareil et procédé d'impression particulièrement appropriés pour l'obtention d'une sortie sur support en papier d'une image produite par un équipement de prise d'images médical ou similaire. L'appareil produit une sortie sur support en papier constituée de pixels dont la dimension peut être modifiée par modulation de surface pour s'adapter aux tonalités et aux détails de l'image tout en conservant un grand nombre de niveaux de gris par cellule de modulation de surface (pixel). De préférence, les mêmes structures de modulation de surface représentant des valeurs de tonalités de pixel sont utilisées pour imprimer des pixels de dimensions différentes.
PCT/US1991/006892 1990-11-21 1991-09-23 Appareil et procede d'impression WO1992010057A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US616,786 1990-11-21
US07/616,786 US5221971A (en) 1990-11-21 1990-11-21 Area modulation printing apparatus

Publications (2)

Publication Number Publication Date
WO1992010057A2 WO1992010057A2 (fr) 1992-06-11
WO1992010057A3 true WO1992010057A3 (fr) 1992-07-09

Family

ID=24470935

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1991/006892 WO1992010057A2 (fr) 1990-11-21 1991-09-23 Appareil et procede d'impression

Country Status (5)

Country Link
US (1) US5221971A (fr)
EP (1) EP0513257A1 (fr)
JP (1) JPH05503199A (fr)
CA (1) CA2052929A1 (fr)
WO (1) WO1992010057A2 (fr)

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US5337408A (en) * 1991-08-09 1994-08-09 Vadem Corporation Multi-level display controller
US5374997A (en) * 1992-07-31 1994-12-20 Xerox Corporation High addressability error diffusion with minimum mark size
US5501940A (en) * 1993-05-20 1996-03-26 Polaroid Corporation Process for protecting a binary image with a siloxane durable layer that is not removable by hexane, isopropanol or water
US5547534A (en) * 1993-09-09 1996-08-20 Polaroid Corporation Protected image, and process for the production thereof
EP0653878B1 (fr) * 1993-11-12 2000-01-12 Tektronix, Inc. Géométrie de motifs de demi-teinte pour l'impression d'images de haute qualité
US5537223A (en) * 1994-06-02 1996-07-16 Xerox Corporation Rotating non-rotationally symmetrical halftone dots for encoding embedded data in a hyperacuity printer
JPH08156329A (ja) * 1994-12-12 1996-06-18 Fuji Xerox Co Ltd 画像形成装置
JPH08163363A (ja) * 1994-12-12 1996-06-21 Fuji Xerox Co Ltd 画像形成装置
US5719965A (en) * 1994-12-13 1998-02-17 Hewlett-Packard Company Higher precision look-up table from lower precision look-up table for improved tonal adjustment
US5933278A (en) * 1997-06-30 1999-08-03 Polaroid Corporation Monolithic multi-faceted mirror for combining multiple beams from different light sources by reflection
US6181357B1 (en) 1998-02-17 2001-01-30 International Business Machines Corporation Method and system for the modification of the timing of a plurality of PEL clocks in an electrophotographic device
US6404909B2 (en) * 1998-07-16 2002-06-11 General Electric Company Method and apparatus for processing partial lines of scanned images
JP2000332993A (ja) * 1999-05-17 2000-11-30 Fuji Photo Film Co Ltd 画像記録装置
AU1342502A (en) * 2000-09-20 2002-04-02 Nik Multimedia Inc Digital image sharpening system
RU2335094C2 (ru) * 2005-10-31 2008-09-27 Общество с ограниченной ответственностью "Новейшие допечатные технологии" (ООО "Новейшие допечатные технологии") Способ адаптивного растрирования полутоновых оригиналов
DE102006049404A1 (de) * 2006-10-19 2008-04-30 Carl Zeiss Ag HMD-Vorrichtung

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GB2098022A (en) * 1981-04-14 1982-11-10 Dainippon Screen Mfg A method for producing a halftone plate for use in a picture reproducing machine
US4533941A (en) * 1983-01-14 1985-08-06 Coulter Systems Corporation Method and apparatus for half-tone reproduction of a varying tone original image

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JPS60152173A (ja) * 1984-01-20 1985-08-10 Fuji Xerox Co Ltd 原稿画情報読取処理装置
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US4965672A (en) * 1987-05-11 1990-10-23 The Mead Corporation Method and apparatus for halftone imaging
JPH01216841A (ja) * 1988-02-25 1989-08-30 Fuji Xerox Co Ltd 画像出力装置における階調表示方法
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Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4040094A (en) * 1973-02-13 1977-08-02 International Publishing Corporation Ltd. Electronic screening
US4084259A (en) * 1973-11-30 1978-04-11 The Mead Corporation Apparatus for dot matrix recording
GB2026283A (en) * 1978-06-23 1980-01-30 Hell R Ing Gmbh Production of half tone facsimile separations with optional screen angles
GB2098022A (en) * 1981-04-14 1982-11-10 Dainippon Screen Mfg A method for producing a halftone plate for use in a picture reproducing machine
US4533941A (en) * 1983-01-14 1985-08-06 Coulter Systems Corporation Method and apparatus for half-tone reproduction of a varying tone original image

Also Published As

Publication number Publication date
CA2052929A1 (fr) 1992-05-22
JPH05503199A (ja) 1993-05-27
US5221971A (en) 1993-06-22
WO1992010057A2 (fr) 1992-06-11
EP0513257A1 (fr) 1992-11-19

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