DK0514504T3 - Fremgangsmåde til printning - Google Patents

Fremgangsmåde til printning

Info

Publication number
DK0514504T3
DK0514504T3 DK91918703.9T DK91918703T DK0514504T3 DK 0514504 T3 DK0514504 T3 DK 0514504T3 DK 91918703 T DK91918703 T DK 91918703T DK 0514504 T3 DK0514504 T3 DK 0514504T3
Authority
DK
Denmark
Prior art keywords
hardcopy
pels
area modulation
pixel
printing
Prior art date
Application number
DK91918703.9T
Other languages
Danish (da)
English (en)
Inventor
Guillermo S Ferla
Janet A Allen
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
Application granted granted Critical
Publication of DK0514504T3 publication Critical patent/DK0514504T3/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
    • H04N1/4055—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

  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Engineering & Computer Science (AREA)
  • Laser Beam Printer (AREA)
  • Glass Compositions (AREA)
  • Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
  • Photoreceptors In Electrophotography (AREA)
  • Printing Methods (AREA)
  • Confectionery (AREA)
  • Medical Preparation Storing Or Oral Administration Devices (AREA)
  • Color, Gradation (AREA)
  • Apparatus For Radiation Diagnosis (AREA)
  • Particle Formation And Scattering Control In Inkjet Printers (AREA)
  • Electronic Switches (AREA)
DK91918703.9T 1990-11-21 1991-09-23 Fremgangsmåde til printning DK0514504T3 (da)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US61663390A 1990-11-21 1990-11-21

Publications (1)

Publication Number Publication Date
DK0514504T3 true DK0514504T3 (da) 1997-06-23

Family

ID=24470341

Family Applications (1)

Application Number Title Priority Date Filing Date
DK91918703.9T DK0514504T3 (da) 1990-11-21 1991-09-23 Fremgangsmåde til printning

Country Status (10)

Country Link
US (1) US5369497A (fr)
EP (1) EP0514504B1 (fr)
JP (1) JP2651493B2 (fr)
KR (1) KR960014312B1 (fr)
AT (1) ATE152310T1 (fr)
AU (1) AU642790B2 (fr)
DE (1) DE69125826T2 (fr)
DK (1) DK0514504T3 (fr)
ES (1) ES2103829T3 (fr)
WO (2) WO1992010054A1 (fr)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5904652A (en) * 1995-06-29 1999-05-18 Teratech Corporation Ultrasound scan conversion with spatial dithering
US6248073B1 (en) * 1995-06-29 2001-06-19 Teratech Corporation Ultrasound scan conversion with spatial dithering
US6031560A (en) * 1996-04-18 2000-02-29 Eastman Kodak Company High resolution medical diagnostic laser printer
US5864362A (en) * 1996-08-27 1999-01-26 Hewlett-Packard Company High speed scanner for reading latent images in storage phosphors
US6170390B1 (en) * 1998-12-21 2001-01-09 Alan L. Backus Enclosed rotisserie with added convenience
JP2000332993A (ja) * 1999-05-17 2000-11-30 Fuji Photo Film Co Ltd 画像記録装置
US7327380B2 (en) * 2003-01-31 2008-02-05 Eastman Kodak Company Apparatus for printing a multibit image
JP5661557B2 (ja) * 2010-06-02 2015-01-28 株式会社東芝 画像階調処理装置、画像形成装置、画像階調処理方法
US9906838B2 (en) 2010-07-12 2018-02-27 Time Warner Cable Enterprises Llc Apparatus and methods for content delivery and message exchange across multiple content delivery networks
US9186793B1 (en) * 2012-08-31 2015-11-17 Brain Corporation Apparatus and methods for controlling attention of a robot
KR20140099760A (ko) * 2013-02-04 2014-08-13 삼성전자주식회사 단말기의 화면 제어 방법 및 장치
US9987743B2 (en) 2014-03-13 2018-06-05 Brain Corporation Trainable modular robotic apparatus and methods
US9533413B2 (en) 2014-03-13 2017-01-03 Brain Corporation Trainable modular robotic apparatus and methods
US9426946B2 (en) 2014-12-02 2016-08-30 Brain Corporation Computerized learning landscaping apparatus and methods
US10326909B2 (en) * 2015-04-10 2019-06-18 Hp Indigo B.V. Selecting colorant amount for printing
US9840003B2 (en) 2015-06-24 2017-12-12 Brain Corporation Apparatus and methods for safe navigation of robotic devices

Family Cites Families (74)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3646262A (en) * 1968-03-25 1972-02-29 Printing Dev Inc Electronic reproduction of continuous image with controlled modification of image reproduction
US3465199A (en) * 1968-11-26 1969-09-02 Rca Corp Electronic halftone image generator
DE2262824C3 (de) * 1972-12-22 1975-07-10 Dr.-Ing. Rudolf Hell Gmbh, 2300 Kiel Verfahren zur gerasterten Reproduktion farbiger Halbtonbilder im Ein- oder Mehrfarbendruck
US3961132A (en) * 1974-07-15 1976-06-01 Log Etronics Inc. Sequential image-modulated dot-area recording
US4051536A (en) * 1975-03-14 1977-09-27 Xerox Corporation Electronic halftone imaging system
IT1057754B (it) * 1975-03-19 1982-03-30 Hell R Gmbh Procedimento e dispositivo per la riproduzione di immagini a mezza tinta con modifica della misura di scomposizione dei punti d immagine nel passaggio da modello a riproduzione
GB1549714A (en) * 1975-05-12 1979-08-08 Ecrm Making halftone reproductions
JPS51150401A (en) * 1975-06-18 1976-12-24 Dainippon Screen Mfg Method and device for scanning recording screen printed image
US4149183A (en) * 1976-05-21 1979-04-10 Xerox Corporation Electronic halftone generator
US4196451A (en) * 1976-05-21 1980-04-01 Xerox Corporation Electronic halftone generator
US4389712A (en) * 1978-03-09 1983-06-21 Itek Corporation High information density laser image recording method and apparatus
US4386272C1 (en) * 1978-07-07 2001-02-06 Pitney Bowes Inc Apparatus and method for generating images by producing light spots of different sizes
US4468706A (en) * 1979-02-13 1984-08-28 Coulter Systems Corporation Imaging by varying the placement of elements in the pixels
JPS56102853A (en) * 1980-01-21 1981-08-17 Dainippon Screen Mfg Co Ltd Metho for pretreating image signal of image copying apparatus
US4435726A (en) * 1980-06-20 1984-03-06 Xerox Corporation One shot predictor for mixed mode documents
JPS5772465A (en) * 1980-10-23 1982-05-06 Canon Inc Digital signal converting device
US4491875A (en) * 1980-10-30 1985-01-01 Canon Kabushiki Kaisha Apparatus and method for tonal image processing
JPS57171337A (en) * 1981-04-14 1982-10-21 Dainippon Screen Mfg Co Ltd Production of halftone plate picture
US4365275A (en) * 1981-05-08 1982-12-21 Delta Scan, Inc. Method for producing images on radiation sensitive recording mediums
US4661859A (en) * 1981-06-03 1987-04-28 Xerox Corporation Pulse width modulation greyscale system for halftone printer
US4499489A (en) * 1981-06-08 1985-02-12 Dr. Ing. Rudolf Hell Gmbh Production of screen printing blocks
GB2101836B (en) * 1981-07-18 1985-02-20 Linotype Paul Ltd Method for encoding image data
JPS5817442A (ja) * 1981-07-24 1983-02-01 Dainippon Screen Mfg Co Ltd 画像走査記録装置における連続階調露光方法およびその装置
JPS58114570A (ja) * 1981-12-26 1983-07-07 Canon Inc 画像処理装置
JPS58141078A (ja) * 1982-02-16 1983-08-22 Dainippon Screen Mfg Co Ltd 画像走査記録方法及び装置
US4433346A (en) * 1982-03-31 1984-02-21 Xerox Corporation Raster input scanner
DE3312273C3 (de) * 1982-04-06 1996-03-21 Canon Kk Bildverarbeitungsgerät
GB2127646B (en) * 1982-08-18 1987-03-25 Matsushita Electric Ind Co Ltd Image processor
US4533941A (en) * 1983-01-14 1985-08-06 Coulter Systems Corporation Method and apparatus for half-tone reproduction of a varying tone original image
US4636869A (en) * 1983-01-18 1987-01-13 Dainippon Screen Mfg. Co., Ltd. Method and system for recording images in various magnification ratios
JPS59161981A (ja) * 1983-03-06 1984-09-12 Canon Inc 画像処理装置
JPS6022867A (ja) * 1983-07-19 1985-02-05 Dainippon Screen Mfg Co Ltd 画像走査複製装置
JPS6030272A (ja) * 1983-07-28 1985-02-15 Canon Inc 画像信号処理装置
GB8401933D0 (en) * 1984-01-25 1984-02-29 Crosfield Electronics Ltd Half-tone imaging
US4599656A (en) * 1984-02-21 1986-07-08 International Business Machines Corporation Processing of gray scale image pels to facilitate data compression
JPH0738677B2 (ja) * 1984-05-07 1995-04-26 株式会社東芝 画像形成装置
US4625222A (en) * 1984-05-17 1986-11-25 International Business Machines Corporation Interacting print enhancement techniques
US4651287A (en) * 1984-06-14 1987-03-17 Tsao Sherman H Digital image processing algorithm for output devices with discrete halftone gray scale capability
JPS61199374A (ja) * 1985-02-28 1986-09-03 Ricoh Co Ltd ドツト補正のレ−ザプリンタ
DE3609252A1 (de) * 1985-03-20 1986-10-02 Canon K.K., Tokio/Tokyo Verfahren und vorrichtung zur bildreproduktion
US4712141A (en) * 1985-03-30 1987-12-08 Dainippon Screen Mfg. Co., Ltd. Method and apparatus for interpolating image signals
EP0361538A1 (fr) * 1985-04-12 1990-04-04 International Business Machines Corporation Procédé et système pour l'amélioration des bords dans la reproduction d'images numériques à plusieurs niveaux de gris d'une imprimante à points de dimensions fixes
JPS61285867A (ja) * 1985-06-12 1986-12-16 Dainippon Screen Mfg Co Ltd 網点画像記録方法並びに装置
JPS6227716A (ja) * 1985-07-29 1987-02-05 Fuji Photo Film Co Ltd 網点形成用ライトバルブ
JPH067660B2 (ja) * 1985-08-29 1994-01-26 キヤノン株式会社 光ビ−ム走査装置
JPS6258779A (ja) * 1985-09-06 1987-03-14 Dainippon Screen Mfg Co Ltd 網目版画像記録装置
US4897734A (en) * 1985-10-28 1990-01-30 Canon Kabushiki Kaisha Image processing apparatus
JPS62118676A (ja) * 1985-11-18 1987-05-30 Sharp Corp 画像処理方式
JPH065872B2 (ja) * 1985-12-16 1994-01-19 株式会社レオ技研 画像再生装置
JPS62145966A (ja) * 1985-12-20 1987-06-30 Fuji Xerox Co Ltd 画像形成装置および方法
US4782398A (en) * 1986-02-14 1988-11-01 Canon Kabushiki Kaisha Image processing apparatus
US4833531A (en) * 1986-04-21 1989-05-23 Konishiroku Photo Industry Co., Ltd. Technique for interpolating a color image for image enlargement or reduction based on look-up tables stored in memory
JPH0782156B2 (ja) * 1986-05-23 1995-09-06 株式会社日立製作所 記録光学系
JPS62278874A (ja) * 1986-05-28 1987-12-03 Ricoh Co Ltd 中間調再現方法
JPS6345973A (ja) * 1986-08-12 1988-02-26 Canon Inc 中間調画像処理装置
WO1988004237A1 (fr) * 1986-12-09 1988-06-16 Polaroid Corporation Milieu de formation d'image thermique
JP2525794B2 (ja) * 1987-02-27 1996-08-21 大日本スクリ−ン製造株式会社 網点画像記録装置
JPS63236472A (ja) * 1987-03-25 1988-10-03 Fujitsu Ltd 画像情報符号化処理装置
JP2677792B2 (ja) * 1987-05-09 1997-11-17 株式会社リコー ファックス機能付きデジタル複写機
US4965672A (en) * 1987-05-11 1990-10-23 The Mead Corporation Method and apparatus for halftone imaging
US4894727A (en) * 1987-10-20 1990-01-16 Ricoh Company, Ltd. Image processing system and method
US4899344A (en) * 1987-12-07 1990-02-06 Ricoh Co., Ltd. Semiconductor laser control apparatus
JPH01258953A (ja) * 1988-04-08 1989-10-16 Ricoh Co Ltd レーザ書込み装置
US4914459A (en) * 1988-04-18 1990-04-03 Ricoh Company, Ltd. Image forming apparatus
GB8811568D0 (en) * 1988-05-16 1988-06-22 Crosfield Electronics Ltd Producing half-tone images
JPH085211B2 (ja) * 1988-06-24 1996-01-24 シャープ株式会社 レーザ光照射装置
US4870652A (en) * 1988-07-08 1989-09-26 Xerox Corporation Monolithic high density arrays of independently addressable semiconductor laser sources
US4916530A (en) * 1988-09-02 1990-04-10 Itek Graphix Corp. High resolution halftone dot generator system including LED array
US4937682A (en) * 1988-12-28 1990-06-26 Hewlett-Packard Company Method and apparatus for providing contrast/intensity control in a document scanner
US5105280A (en) * 1989-01-12 1992-04-14 Minolta Camera Kabushiki Kaisha Image forming device which can form an image by printing a plurality of pixel unit areas which are composed of multiple sub pixels
US5075780A (en) * 1989-03-29 1991-12-24 Mita Industrial Co., Ltd. Method of reproducing gradations according to a ratio of fine pixels turned on to fine pixels turned off
US4891709A (en) * 1989-03-31 1990-01-02 Eastman Kodak Company Flexible formatting interface for pictorial data transfer
US4914455A (en) * 1989-07-31 1990-04-03 Xerox Corporation Process control for electrostatographic printers
US4985779A (en) * 1989-09-19 1991-01-15 Intergraph Corporation Improved method and apparatus for generating halftone images

Also Published As

Publication number Publication date
WO1992010054A1 (fr) 1992-06-11
ES2103829T3 (es) 1997-10-01
EP0514504B1 (fr) 1997-04-23
JPH05507189A (ja) 1993-10-14
DE69125826D1 (de) 1997-05-28
JP2651493B2 (ja) 1997-09-10
AU642790B2 (en) 1993-10-28
AU8869891A (en) 1992-06-25
EP0514504A1 (fr) 1992-11-25
US5369497A (en) 1994-11-29
WO1992010052A1 (fr) 1992-06-11
ATE152310T1 (de) 1997-05-15
DE69125826T2 (de) 1997-07-31
KR960014312B1 (ko) 1996-10-15

Similar Documents

Publication Publication Date Title
DK0514504T3 (da) Fremgangsmåde til printning
ATE152267T1 (de) Verfahren und vorrichtung zum auffinden einer ecke einer struktur in zweidimensionalen bildern
CA2219614A1 (fr) Appareil d'imagerie laser submersible
CA2097508A1 (fr) Methode et appareil pour obtenir une image en similigravure a partir d'une image a echelle de gris a l'aide d'un masque a bruit bleu
SE8001026L (sv) Sett och anordning for att medelst laser astadkomma tryckplatar
ATE14164T1 (de) Verfahren zur herstellung von druckformen mittels unregelmaessig verteilter druckpunkte.
GB1269093A (en) A method for the rastered reproduction of half-tone pictures
Knowlton et al. Computer-produced grey scales
ES2188130T3 (es) Aparato y metodo de tratamiento de imagenes.
US3564131A (en) Spatially modulated halftone dot image generation system
EP0038513A3 (en) Method and system to depict a picture of an object
EP0337427A3 (fr) Procédé et appareil pour l'enregistrement d'images en demi-teintes
ATE119475T1 (de) Druckgerät.
CA2016168A1 (fr) Circuit d'accentuation-desaccentuation de signaux couleur
TW344006B (en) Method and device for inserting a column of stabilizing material into the ground
JPS6191661A (ja) 網点フィルム作成装置
EP0646467A3 (fr) Système d'impression à laser
GB2012517A (en) A half tone facsimile reproduction method group
DE69021046D1 (de) Gemischte matrix-bildverarbeitung zur wiedergabe von halbtonbildern mit veränderlicher punktgrösse.
RO96037B (ro) METODA SI ECHIPAMENT PENTRU TRANSMITEREA DE INFORMATII îN SPATIUL LIBER PRIN INTERMEDIUL UNOR FASCICULE ORIENTATE DE UNDE ELECTROMAGNETICE CU O LUNGIME DE UNDA DE PîNA LA 10MM
DE1671578A1 (de) Einrichtung zum Erzeugen von Halbtonbildern
Kotera et al. The new color image processing techniques for hardcopy
Melnychuck Fourier spectra of digital halftone images containing random position errors and reflectance non-uniformities
Comeau Prediction of screener-induced moire in digital halftone pattern generation
Eschbach Error diffusion with homogeneous highlight and shadow response