DE69512290T2 - Reproduktionsverfahren für Farbdokumente - Google Patents
Reproduktionsverfahren für FarbdokumenteInfo
- Publication number
- DE69512290T2 DE69512290T2 DE69512290T DE69512290T DE69512290T2 DE 69512290 T2 DE69512290 T2 DE 69512290T2 DE 69512290 T DE69512290 T DE 69512290T DE 69512290 T DE69512290 T DE 69512290T DE 69512290 T2 DE69512290 T2 DE 69512290T2
- Authority
- DE
- Germany
- Prior art keywords
- reproduction process
- color documents
- documents
- color
- reproduction
- 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
- H04N1/46—Colour picture communication systems
- H04N1/52—Circuits or arrangements for halftone screening
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Facsimile Image Signal Circuits (AREA)
- Image Processing (AREA)
- Color Image Communication Systems (AREA)
- Color, Gradation (AREA)
- Color Electrophotography (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/204,921 US5394252A (en) | 1994-03-02 | 1994-03-02 | Hybrid quantization method for color document reproduction |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69512290D1 DE69512290D1 (de) | 1999-10-28 |
DE69512290T2 true DE69512290T2 (de) | 2000-03-23 |
Family
ID=22760031
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69512290T Expired - Lifetime DE69512290T2 (de) | 1994-03-02 | 1995-02-16 | Reproduktionsverfahren für Farbdokumente |
Country Status (5)
Country | Link |
---|---|
US (1) | US5394252A (de) |
EP (1) | EP0670655B1 (de) |
JP (1) | JPH07274015A (de) |
CA (1) | CA2140410C (de) |
DE (1) | DE69512290T2 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6853467B2 (en) | 2000-05-08 | 2005-02-08 | Heidelberger Druckmaschinen Ag | Multistage screening with screens of any desired screen resolutions and screen angles |
Families Citing this family (45)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5548407A (en) * | 1992-05-22 | 1996-08-20 | Albrecht von Kienlin | Process for electronic processing of multi-colored continuous-tone images |
DE69403581T2 (de) * | 1993-08-13 | 1998-02-05 | Agfa Gevaert Nv | Verfahren zum Erzeugen frequenzmodulierter Halbtonbilder |
US6118457A (en) * | 1993-10-28 | 2000-09-12 | Canon Kabushiki Kaisha | Resolution conversion with preservation of fine lines and of hue |
US5786900A (en) * | 1994-03-23 | 1998-07-28 | Fuji Photo Film Co., Ltd. | Image recording device for recording multicolor images with dot pitch pattern randomly arranged only in the sub-scanning direction |
US5715073A (en) * | 1995-02-03 | 1998-02-03 | Eastman Kodak Company | Processing by separate stages monochrome digital images to provide halftone color images |
US5640254A (en) * | 1995-02-06 | 1997-06-17 | Polygraphex Systems, Inc. | Method for applying FM screening to a digital image |
CA2169902A1 (en) * | 1995-03-16 | 1996-09-17 | Allan Chiwan Cheung | Combined color halftoning |
DE69516515T2 (de) * | 1995-09-12 | 2000-11-23 | Agfa Gevaert Nv | Siebdruckverfahren unter Verwendung von rotierenden Schablonen |
US5953988A (en) * | 1995-09-12 | 1999-09-21 | Agfa Gevaert, N.V. | Screen printing process using rotated screens |
US5774236A (en) * | 1995-12-20 | 1998-06-30 | Eastman Kodak Company | Multi-resolution halftone tilier |
US5930010A (en) * | 1996-01-31 | 1999-07-27 | Lexmark International, Inc. | Method and apparatus for color halftoning using different halftoning techniques for halftoning different dot planes |
US5802212A (en) * | 1996-02-09 | 1998-09-01 | Seiko Epson Corporation | Clustered-dot dither with white-fleck suppression |
US5805734A (en) * | 1996-04-01 | 1998-09-08 | Xerox Corporation | Hybrid imaging system |
US5838462A (en) * | 1996-04-01 | 1998-11-17 | Xerox Corporation | Hybrid imaging system |
US5673121A (en) * | 1996-06-17 | 1997-09-30 | Xerox Corporation | Stochastic halftoning screening method |
US5740334A (en) * | 1996-07-01 | 1998-04-14 | Xerox Corporation | Quantization method for color document reproduction in a color printing system |
US6031626A (en) * | 1996-08-15 | 2000-02-29 | Seiko Epson Corporation | Color stochastic screening with optimal color dot placement |
US5963715A (en) * | 1996-08-15 | 1999-10-05 | Seiko Epson Corporation | Color stochastic screening with optimal color dot placement for display devices having arbitrary aspect ratios |
US5796929A (en) * | 1996-10-24 | 1998-08-18 | Seiko Epson Corporation | Banding and ink-bleeding reduction in cluster dither by screen displacement |
US5787238A (en) * | 1996-11-14 | 1998-07-28 | Xerox Corporation | Clustered halftone dot design process |
US5963714A (en) * | 1996-11-15 | 1999-10-05 | Seiko Epson Corporation | Multicolor and mixed-mode halftoning |
US5740279A (en) * | 1996-11-26 | 1998-04-14 | Xerox Corporation | Cluster dot halftoning system |
US5859955A (en) * | 1997-01-21 | 1999-01-12 | Xerox Corporation | Stochastically clustered dot halftoning system |
US6404510B1 (en) * | 1997-05-28 | 2002-06-11 | Fuji Photo Film Co., Ltd. | Image printing method |
JPH11168627A (ja) * | 1997-08-27 | 1999-06-22 | Fuji Photo Film Co Ltd | 画像形成方法 |
US6252675B1 (en) | 1998-05-08 | 2001-06-26 | Xerox Corporation | Apparatus and method for halftone hybrid screen generation |
US6014500A (en) * | 1998-06-01 | 2000-01-11 | Xerox Corporation | Stochastic halftoning screening method |
US6172769B1 (en) * | 1998-08-06 | 2001-01-09 | International Business Machines Corporation | Printer dependent descreening method |
US6285462B1 (en) | 1998-11-13 | 2001-09-04 | Xerox Corporation | Intelligent GCR/UCR process to reduce multiple colorant moire in color printing |
US6304340B1 (en) | 1998-11-18 | 2001-10-16 | Xerox Corporation | Composite halftone screens with stochastically distributed clusters or lines |
US6353687B1 (en) * | 1998-12-18 | 2002-03-05 | Xerox Corporation | System and apparatus for single subpixel elimination with local error compensation in an high addressable error diffusion process |
US6456397B1 (en) | 1999-05-12 | 2002-09-24 | Presstek, Inc. | Method and apparatus for digital imaging with reduced periodic artifacts using stochastic gradients |
US6906825B1 (en) * | 1999-06-14 | 2005-06-14 | Toshiba Tec Kabushiki Kaisha | Image processor and color image processor |
JP2001157056A (ja) | 1999-11-30 | 2001-06-08 | Fujitsu Ltd | ハーフトーン化方法およびハーフトーン化装置並びにハーフトーン化プログラムを記録したコンピュータ読み取り可能な記録媒体 |
US6643030B1 (en) | 1999-12-15 | 2003-11-04 | Xerox Corporation | Quantization method for color document reproduction in a color printing system |
JP2001346041A (ja) * | 2000-06-02 | 2001-12-14 | Matsushita Electric Ind Co Ltd | 画像処理方法及び装置 |
JP2003051954A (ja) * | 2001-05-30 | 2003-02-21 | Ricoh Co Ltd | ハーフトーンスクリーニング方法及びコンピュータプログラム並びに情報記録媒体 |
US7110144B2 (en) * | 2001-09-05 | 2006-09-19 | Xerox Corporation | System and method of performing halftone gamma correction in a printing environment |
US20030058458A1 (en) * | 2001-09-24 | 2003-03-27 | Ripit Computer Corporation | Image-processing for output on a proofing device |
US7375866B2 (en) * | 2002-09-30 | 2008-05-20 | Kabushiki Kaisha Toshiba | Image processing system and method for screening |
US20050226498A1 (en) * | 2004-03-31 | 2005-10-13 | Lee David L | Prepress workflow process employing frequency modulation (FM) screening techniques |
DE102005027068A1 (de) * | 2005-06-11 | 2006-12-14 | Man Roland Druckmaschinen Ag | Rasterverfahren für den Mehrfarbendruck |
US20070002410A1 (en) * | 2005-06-30 | 2007-01-04 | Majewicz Peter I | Hybrid halftoning |
WO2013066303A1 (en) | 2011-10-31 | 2013-05-10 | Hewlett-Packard Development Company, L.P. | Method and system for halftone printing |
JP7206656B2 (ja) * | 2018-07-09 | 2023-01-18 | 富士フイルムビジネスイノベーション株式会社 | 画像形成装置 |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4149194A (en) * | 1977-07-07 | 1979-04-10 | Xerox Corporation | Variable angle electronic halftone screening |
ATE14164T1 (de) * | 1981-09-12 | 1985-07-15 | Hell Rudolf Dr Ing Gmbh | Verfahren zur herstellung von druckformen mittels unregelmaessig verteilter druckpunkte. |
US4533941A (en) * | 1983-01-14 | 1985-08-06 | Coulter Systems Corporation | Method and apparatus for half-tone reproduction of a varying tone original image |
DE3634939A1 (de) * | 1986-10-14 | 1988-04-28 | Du Pont Deutschland | Verfahren zum aufzeichnen von quasihalbtonbildern |
JP2791066B2 (ja) * | 1988-11-15 | 1998-08-27 | キヤノン株式会社 | 記録装置 |
JPH02145085A (ja) * | 1988-11-25 | 1990-06-04 | Fuji Xerox Co Ltd | フィルム画像読取装置 |
US5225915A (en) * | 1989-06-09 | 1993-07-06 | Xerox Corporation | Image processing with noise enhancing operators for moire reduction and/or random dot generation |
US5045952A (en) * | 1989-08-21 | 1991-09-03 | Xerox Corporation | Method for edge enhanced error diffusion |
US5226094A (en) * | 1990-10-19 | 1993-07-06 | Xerox Corporation | Method for making image conversions with error diffusion |
US5223953A (en) * | 1991-06-24 | 1993-06-29 | Xerox Corporation | Screening circuit for variable angle screening of image pixels |
US5278670A (en) * | 1992-12-18 | 1994-01-11 | Xerox Corporation | Content-based resolution conversion of color documents |
-
1994
- 1994-03-02 US US08/204,921 patent/US5394252A/en not_active Expired - Lifetime
-
1995
- 1995-01-17 CA CA002140410A patent/CA2140410C/en not_active Expired - Lifetime
- 1995-02-16 EP EP95301010A patent/EP0670655B1/de not_active Expired - Lifetime
- 1995-02-16 DE DE69512290T patent/DE69512290T2/de not_active Expired - Lifetime
- 1995-02-22 JP JP7033674A patent/JPH07274015A/ja active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6853467B2 (en) | 2000-05-08 | 2005-02-08 | Heidelberger Druckmaschinen Ag | Multistage screening with screens of any desired screen resolutions and screen angles |
Also Published As
Publication number | Publication date |
---|---|
CA2140410A1 (en) | 1995-09-03 |
US5394252A (en) | 1995-02-28 |
EP0670655A1 (de) | 1995-09-06 |
EP0670655B1 (de) | 1999-09-22 |
CA2140410C (en) | 1999-08-03 |
DE69512290D1 (de) | 1999-10-28 |
JPH07274015A (ja) | 1995-10-20 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition |