DE69413330D1 - Halbtonrasterungsverfahren für eine Wiedergabevorrichtung beschränkter Dichteauflösung - Google Patents
Halbtonrasterungsverfahren für eine Wiedergabevorrichtung beschränkter DichteauflösungInfo
- Publication number
- DE69413330D1 DE69413330D1 DE69413330T DE69413330T DE69413330D1 DE 69413330 D1 DE69413330 D1 DE 69413330D1 DE 69413330 T DE69413330 T DE 69413330T DE 69413330 T DE69413330 T DE 69413330T DE 69413330 D1 DE69413330 D1 DE 69413330D1
- Authority
- DE
- Germany
- Prior art keywords
- density
- screening method
- rendering
- display device
- resolution
- 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
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
- H04N1/4058—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 with details for producing a halftone screen at an oblique angle
-
- 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
- H04N1/4057—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 the pattern being a mixture of differently sized sub-patterns, e.g. spots having only a few different diameters
-
- 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
- H04N1/46—Colour picture communication systems
- H04N1/52—Circuits or arrangements for halftone screening
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Color, Gradation (AREA)
- Image Generation (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
- Facsimile Image Signal Circuits (AREA)
- Image Processing (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BE9300713A BE1007264A4 (nl) | 1993-07-12 | 1993-07-12 | Rastermethode voor een schrijfsysteem met beperkte densiteitsresolutie. |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69413330D1 true DE69413330D1 (de) | 1998-10-22 |
DE69413330T2 DE69413330T2 (de) | 1999-05-12 |
Family
ID=3887170
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69413330T Expired - Lifetime DE69413330T2 (de) | 1993-07-12 | 1994-06-29 | Halbtonrasterungsverfahren für eine Wiedergabevorrichtung beschränkter Dichteauflösung |
Country Status (6)
Country | Link |
---|---|
US (1) | US5654808A (de) |
EP (1) | EP0634862B1 (de) |
JP (1) | JP3479560B2 (de) |
AT (1) | ATE171330T1 (de) |
BE (1) | BE1007264A4 (de) |
DE (1) | DE69413330T2 (de) |
Families Citing this family (25)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ATE222039T1 (de) * | 1994-04-27 | 2002-08-15 | Agfa Gevaert | Mehrstufige halbtonrasterung mit gruppierten punkten und linien für den elektrografischen farbdruck |
EP0710898B1 (de) * | 1994-11-04 | 1998-09-30 | Agfa-Gevaert N.V. | Vorrichtung zum direkten elektrostatischen Drucken mit Reihen kleinerer und grösserer Öffnungen |
EP0753413B1 (de) * | 1995-07-14 | 1999-12-01 | Agfa-Gevaert N.V. | Druckkopfstruktur zur Anwendung in einer DEP Vorrichtung |
CA2185829C (en) * | 1995-09-27 | 2007-09-25 | Vadlamannati Venkateswar | Two-dimensional modulation for line screen printing |
US5859928A (en) * | 1996-06-21 | 1999-01-12 | Hewlett-Packard Company | Jitter-form background control for minimizing spurious gray cast in scanned images |
US6317220B1 (en) * | 1996-12-06 | 2001-11-13 | Seiko Epson Corporation | Image forming apparatus capable of preventing linear nonuniformity and improving image quality |
DE69620204T2 (de) | 1996-12-23 | 2002-10-24 | Agfa-Gevaert, Mortsel | Drucker und Druckverfahren |
DE19724066B4 (de) * | 1997-06-07 | 2007-04-19 | Man Roland Druckmaschinen Ag | Verfahren zur Korrektur von Geometriefehlern bei der Übertragung von Informationen auf einen Bedruckstoff |
JP3561398B2 (ja) | 1997-09-24 | 2004-09-02 | 大日本スクリーン製造株式会社 | 画素の階調再現を利用した網点画像記録方法および装置 |
JP3522147B2 (ja) * | 1998-04-28 | 2004-04-26 | セイコーエプソン株式会社 | ハーフトーニング装置及び画像形成装置 |
US6690837B1 (en) | 1998-11-03 | 2004-02-10 | Agfa-Gevaert | Screening method for overlapping sub-images |
JP3835037B2 (ja) * | 1999-02-05 | 2006-10-18 | セイコーエプソン株式会社 | カラー電子写真の画像処理方法及びその電子写真装置 |
JP3589286B2 (ja) | 1999-08-23 | 2004-11-17 | セイコーエプソン株式会社 | 画像処理装置及びその方法、並びにその画像処理装置を備えたプリンタシステム |
WO2001017789A1 (en) * | 1999-09-09 | 2001-03-15 | Array Ab Publ. | Direct electrostatic printing method and apparatus |
US6940619B1 (en) | 1999-12-30 | 2005-09-06 | Texas Instruments Incorporated | Polynomial based multi-level screening |
JP2001257884A (ja) * | 1999-12-30 | 2001-09-21 | Texas Instr Inc <Ti> | 多項式を基礎とした多レベルスクリーニング |
JP3985437B2 (ja) | 2000-08-03 | 2007-10-03 | セイコーエプソン株式会社 | 電子写真の画像形成装置及びその画像形成プログラム製品 |
US7009736B2 (en) * | 2000-12-22 | 2006-03-07 | Texas Instruments Incorporated | Tile map based multi-level supercell screening |
US20030107768A1 (en) * | 2001-12-04 | 2003-06-12 | Crounse Kenneth R. | Halftoning with uniformly dispersed dot growth |
KR100402801B1 (en) * | 2002-04-09 | 2003-10-22 | Samsung Electronics Co Ltd | Image forming apparatus |
EP1568210A1 (de) * | 2002-11-25 | 2005-08-31 | Agfa-Gevaert | Verfahren zur erzeugung von nichtdruckenden punkten in einer gerasterten repräsentation eines bildes |
US20040130753A1 (en) * | 2003-01-06 | 2004-07-08 | Crounse Kenneth R. | Halftone method and system using hybrid AM/FM screening for highlight/shadow tonal regions |
GB0618412D0 (en) * | 2006-09-19 | 2006-11-01 | Punch Graphix Int Nv | Near press 4-color N-color conversion method and system for late binding of press details in a RIP-less color conversion or documented CMYK workflow |
JPWO2008062524A1 (ja) * | 2006-11-22 | 2010-03-04 | パイオニア株式会社 | 描画制御装置、描画装置及び描画制御用プログラム |
EP2129100B1 (de) | 2008-05-29 | 2014-02-12 | Xeikon Manufacturing N.V. | Autotypische multilevel-Rasterung mit verbessertem Detail und reduziertem Bildrauschen |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1797412B2 (de) * | 1968-09-26 | 1972-05-04 | Dr.-Ing. Rudolf Hell Gmbh, 2300 Kiel | Verfahren zum aufzeichnen der durch abtasten von zu reproduzierenden halbtonbildvorlagen gewonnenen, quantisierten und ggf. digitalisierten bildsignale |
JPS57160264A (en) * | 1981-03-30 | 1982-10-02 | Canon Inc | Recorder of half tone picture |
EP0304289A3 (de) * | 1987-08-18 | 1991-03-13 | Kabushiki Kaisha Toshiba | Halbtonbildreproduktionsverfahren und -Gerät |
EP0334518B1 (de) * | 1988-03-10 | 1997-10-15 | Canon Kabushiki Kaisha | Bilderzeugungsgerät |
JPH0722348B2 (ja) * | 1989-09-14 | 1995-03-08 | 大日本スクリーン製造株式会社 | 網目版画像記録方法 |
DE4025793A1 (de) * | 1990-08-13 | 1992-02-20 | Siemens Ag | Verfahren zum drucken eines halbtonbildes |
US5155599A (en) * | 1991-07-25 | 1992-10-13 | Miles, Inc. | Screening system and method for color reproduction in offset printing |
-
1993
- 1993-07-12 BE BE9300713A patent/BE1007264A4/nl not_active IP Right Cessation
-
1994
- 1994-06-29 DE DE69413330T patent/DE69413330T2/de not_active Expired - Lifetime
- 1994-06-29 EP EP94201875A patent/EP0634862B1/de not_active Expired - Lifetime
- 1994-06-29 AT AT94201875T patent/ATE171330T1/de not_active IP Right Cessation
- 1994-07-06 US US08/271,343 patent/US5654808A/en not_active Expired - Lifetime
- 1994-07-08 JP JP18072394A patent/JP3479560B2/ja not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
EP0634862B1 (de) | 1998-09-16 |
EP0634862A1 (de) | 1995-01-18 |
ATE171330T1 (de) | 1998-10-15 |
US5654808A (en) | 1997-08-05 |
JPH0757104A (ja) | 1995-03-03 |
DE69413330T2 (de) | 1999-05-12 |
BE1007264A4 (nl) | 1995-05-02 |
JP3479560B2 (ja) | 2003-12-15 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8320 | Willingness to grant licences declared (paragraph 23) | ||
8327 | Change in the person/name/address of the patent owner |
Owner name: AGFA GRAPHICS N.V., MORTSEL, BE |