DE69510824D1 - Bildanzeigevorrichtung mit unregelmässig placierten spiralförmigen strukturen - Google Patents

Bildanzeigevorrichtung mit unregelmässig placierten spiralförmigen strukturen

Info

Publication number
DE69510824D1
DE69510824D1 DE69510824T DE69510824T DE69510824D1 DE 69510824 D1 DE69510824 D1 DE 69510824D1 DE 69510824 T DE69510824 T DE 69510824T DE 69510824 T DE69510824 T DE 69510824T DE 69510824 D1 DE69510824 D1 DE 69510824D1
Authority
DE
Germany
Prior art keywords
irrequely
display device
image display
shaped structures
placed spiral
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Lifetime
Application number
DE69510824T
Other languages
English (en)
Inventor
Daniel Hall
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Harlequin Group PLC
Original Assignee
Harlequin Group PLC
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 Harlequin Group PLC filed Critical Harlequin Group PLC
Application granted granted Critical
Publication of DE69510824D1 publication Critical patent/DE69510824D1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • 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
    • 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
    • H04N1/387—Composing, repositioning or otherwise geometrically modifying originals
DE69510824T 1994-07-29 1995-07-28 Bildanzeigevorrichtung mit unregelmässig placierten spiralförmigen strukturen Expired - Lifetime DE69510824D1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/283,028 US5579457A (en) 1994-07-29 1994-07-29 Image display apparatus and method using irregularly placed curving structures
PCT/IB1995/000590 WO1996004747A1 (en) 1994-07-29 1995-07-28 Image display using irregularly placed curving structures

Publications (1)

Publication Number Publication Date
DE69510824D1 true DE69510824D1 (de) 1999-08-19

Family

ID=23084185

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69510824T Expired - Lifetime DE69510824D1 (de) 1994-07-29 1995-07-28 Bildanzeigevorrichtung mit unregelmässig placierten spiralförmigen strukturen

Country Status (6)

Country Link
US (2) US5579457A (de)
EP (1) EP0803160B1 (de)
JP (1) JPH10504151A (de)
KR (1) KR970705284A (de)
DE (1) DE69510824D1 (de)
WO (1) WO1996004747A1 (de)

Families Citing this family (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5579457A (en) * 1994-07-29 1996-11-26 The Harlequin Group Ltd. Image display apparatus and method using irregularly placed curving structures
US5710636A (en) * 1995-06-05 1998-01-20 Xerox Corporation Method and apparatus for generating halftone images having human readable patterns formed therein
US5706099A (en) * 1995-06-05 1998-01-06 Xerox Corporation Method and apparatus for generating serpentine halftone images
US5802212A (en) * 1996-02-09 1998-09-01 Seiko Epson Corporation Clustered-dot dither with white-fleck suppression
US5771033A (en) * 1996-05-24 1998-06-23 Microsoft Corporation Method and system for dissolving an image displayed on a computer screen
SE513365C2 (sv) * 1998-03-05 2000-09-04 Forskarpatent I Linkoeping Ab Rastreringsförfarande baserat på förberäknade mallar
US20050182828A1 (en) * 1999-04-21 2005-08-18 Interactual Technologies, Inc. Platform specific execution
AU5140200A (en) 1999-05-26 2000-12-18 Enounce, Incorporated Method and apparatus for controlling time-scale modification during multi-media broadcasts
JP4392082B2 (ja) 1999-08-06 2009-12-24 ヒューレット・パッカード・カンパニー 彫版風ハーフトーン画像生成方法・装置
AU745125B2 (en) * 1999-11-02 2002-03-14 Canon Kabushiki Kaisha Flexible typesetting
JP3427026B2 (ja) * 1999-12-24 2003-07-14 大日本スクリーン製造株式会社 網点形成方法および装置
US7310168B2 (en) * 2001-07-03 2007-12-18 Infoprint Solutions Company Llc Method and apparatus for controlling a spot function for digital halftoning
US20040051884A1 (en) * 2002-09-18 2004-03-18 Creo, Inc. Method of encoding raster data based on variations of color
US7345785B2 (en) * 2002-09-18 2008-03-18 Kodak Graphic Communications Canada Company Method of compensating for scan conversion rules and imposition shifts
DE102005052874B4 (de) 2004-11-29 2018-09-27 Heidelberger Druckmaschinen Ag Verfahren zur Erzeugung einer Schwellwertmatrix für eine frequenzmodulierte Rasterung
US7505177B2 (en) * 2004-11-29 2009-03-17 Heidelberger Druckmaschinen Ag Method for generating a threshold value matrix for frequency modulated half-toning
US7515303B2 (en) * 2005-03-29 2009-04-07 Heidelberger Druckmaschinen Ag Process for the modeling of dots for a screen
US20090034006A1 (en) * 2007-08-03 2009-02-05 Blondal Daniel J Stochastic halftone images based on screening parameters
US20090034008A1 (en) * 2007-08-03 2009-02-05 Lawrence Croft Method for generating stochastic dither matrix
US8824000B2 (en) 2012-05-22 2014-09-02 Eastman Kodak Company Enhancing the appearance of a halftone image
US8842341B2 (en) 2012-05-22 2014-09-23 Eastman Kodak Company Rescreeining selected parts of a halftone image
US11568189B2 (en) * 2018-08-10 2023-01-31 Agfa Offset Bv Digital halftoning with dots representing a spiral
WO2020221684A1 (en) * 2019-04-30 2020-11-05 Agfa Nv Digital halftoning with spiral dots
US20220230031A1 (en) * 2019-04-30 2022-07-21 Agfa Nv Raster image processor
CN114026839A (zh) * 2019-06-05 2022-02-08 爱克发胶印有限公司 数字半色调的方法

Family Cites Families (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4706077A (en) * 1981-09-08 1987-11-10 Xerox Corporation Halftoning implementation for interactive image editing
US4736254A (en) * 1984-11-22 1988-04-05 Matsushita Electric Industrial Co., Ltd. Method and apparatus for generating pseudo-halftone dots by comparing gray scale values of an original with dither threshold values stored in cells of a matrix array divided into imaginary matrices of elemental areas each containing one cell
AU605298B2 (en) * 1987-05-29 1991-01-10 Digital Equipment Corporation System for producing dithered images on asymmetric grids
US4958272A (en) * 1988-02-17 1990-09-18 Xyvision Design Systems, Inc. Apparatus and system for generating smooth shaded continuous tone images
US4837613A (en) * 1988-09-01 1989-06-06 Adobe Systems, Inc. Method of color selection for display and printing
US5016191A (en) * 1988-09-02 1991-05-14 Tektronix, Inc. Half toning pixel processor
JPH0666880B2 (ja) * 1988-11-17 1994-08-24 大日本スクリーン製造株式会社 網目版画像形成方法
US5201013A (en) * 1989-04-24 1993-04-06 Ezel, Inc. Dither processing method
US5225915A (en) * 1989-06-09 1993-07-06 Xerox Corporation Image processing with noise enhancing operators for moire reduction and/or random dot generation
US5235435A (en) * 1989-11-08 1993-08-10 Adobe Systems Incorporated Method of producing halftone images
US5287195A (en) * 1990-09-17 1994-02-15 Phoenix Technologies Ltd. Image display apparatus and method using halftone super cells
US5111310A (en) * 1990-12-04 1992-05-05 Research Technologies Corporation, Inc. Method and apparatus for halftone rendering of a gray scale image using a blue noise mask
EP0499738B1 (de) * 1991-02-08 1996-12-27 Adobe Systems Inc. Punktgrössesteuerverfahren bei digitaler Halbtonrasterung mit mehrzelliger Schwellenmatrix
US5202772A (en) * 1991-02-28 1993-04-13 Volt Information Sciences, Inc. Color halftone screen utilizing preselected halftone dots placed at preselected distance and screen angles from center halftone dots
US5267054A (en) * 1991-06-26 1993-11-30 Sun Microsystems, Inc. Method and apparatus for the reduction of memory space required for a digital halftone system
US5307181A (en) * 1991-09-03 1994-04-26 Levien Raphael L Screen generation for halftone screening of images using scan line segments of oversized screen scan lines
US5754311A (en) * 1992-03-10 1998-05-19 Eastman Kodak Company Method and apparatus for generating simultaneously derived correlated digital halftone patterns
US5526021A (en) * 1993-01-11 1996-06-11 Canon Inc. Dithering optimization techniques
EP0647058B1 (de) * 1993-09-28 1999-04-14 Hewlett-Packard Company Digitale Halbtonrasterwiedergabe eines Grautonbildes mit frequenzabhängiger diagonaler Korrelation
US5579457A (en) * 1994-07-29 1996-11-26 The Harlequin Group Ltd. Image display apparatus and method using irregularly placed curving structures

Also Published As

Publication number Publication date
WO1996004747A1 (en) 1996-02-15
EP0803160A1 (de) 1997-10-29
US5808622A (en) 1998-09-15
KR970705284A (ko) 1997-09-06
US5579457A (en) 1996-11-26
JPH10504151A (ja) 1998-04-14
EP0803160B1 (de) 1999-07-14

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Legal Events

Date Code Title Description
8332 No legal effect for de