DE69616045D1 - Halbtonraster,das eine punktfunktion verwendet zum anordnen von bildelementen nach einem oder mehreren entwurfregeln - Google Patents
Halbtonraster,das eine punktfunktion verwendet zum anordnen von bildelementen nach einem oder mehreren entwurfregelnInfo
- Publication number
- DE69616045D1 DE69616045D1 DE69616045T DE69616045T DE69616045D1 DE 69616045 D1 DE69616045 D1 DE 69616045D1 DE 69616045 T DE69616045 T DE 69616045T DE 69616045 T DE69616045 T DE 69616045T DE 69616045 D1 DE69616045 D1 DE 69616045D1
- Authority
- DE
- Germany
- Prior art keywords
- image elements
- design rules
- halftone screen
- arrange image
- dot function
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Image Processing (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/430,881 US5587811A (en) | 1995-04-28 | 1995-04-28 | Halftone screen using spot function to rank pixels following one or more design rules |
PCT/US1996/005745 WO1996034488A1 (en) | 1995-04-28 | 1996-04-26 | Halftone screen using spot function to rank pixels following one or more design rules |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69616045D1 true DE69616045D1 (de) | 2001-11-22 |
DE69616045T2 DE69616045T2 (de) | 2002-06-06 |
Family
ID=23709468
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69616045T Expired - Lifetime DE69616045T2 (de) | 1995-04-28 | 1996-04-26 | Halbtonraster,das eine punktfunktion verwendet zum anordnen von bildelementen nach einem oder mehreren entwurfregeln |
Country Status (8)
Country | Link |
---|---|
US (1) | US5587811A (de) |
EP (1) | EP0826284B1 (de) |
JP (1) | JPH11504476A (de) |
AU (1) | AU5573996A (de) |
DE (1) | DE69616045T2 (de) |
DK (1) | DK0826284T3 (de) |
ES (1) | ES2165981T3 (de) |
WO (1) | WO1996034488A1 (de) |
Families Citing this family (23)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0680193B1 (de) * | 1994-04-27 | 2000-07-12 | Agfa-Gevaert N.V. | Tonabhängige Rosettenstrukturen bei der Mehrschichthalbtonrasterung durch Phasenmodulation |
DE69527675T2 (de) * | 1994-04-27 | 2003-04-03 | Agfa Gevaert Nv | Mehrstufige Halbtonrasterung mit gruppierten Punkten und Linien für den elektrografischen Farbdruck |
GB9711202D0 (en) * | 1997-05-30 | 1997-07-23 | Fujifilm Electronic Imaging Li | Method and apparatus for generating a bitmap |
US5991513A (en) * | 1997-09-30 | 1999-11-23 | Levien; Raphael L | Method and apparatus for suppressing moire patterns |
US6185005B1 (en) * | 1998-04-30 | 2001-02-06 | Hitachi Koki Imaging Solutions, Inc. | Half tone image enhancement for printers |
JP3663967B2 (ja) * | 1999-04-05 | 2005-06-22 | 富士ゼロックス株式会社 | 画像処理方法及び画像処理装置 |
US6687023B1 (en) | 2000-04-17 | 2004-02-03 | International Business Machines Corporation | Data processing system and method for producing shifted-element halftone screens |
US7170639B1 (en) * | 2000-05-16 | 2007-01-30 | International Business Machines Corporation | Halftone method and apparatus that provides simultaneous, multiple lines per inch screens |
US7835034B1 (en) | 2000-05-16 | 2010-11-16 | Infoprint Solutions Company, Llc | Halftone method and apparatus that provides a line screen frequency of N/2 for a printer resolution of N dots per inch without negative print effects |
US6853469B1 (en) * | 2000-05-26 | 2005-02-08 | International Business Machines Corporation | Method and system for digital printing by density scheduling |
US7009736B2 (en) * | 2000-12-22 | 2006-03-07 | Texas Instruments Incorporated | Tile map based multi-level supercell screening |
US20020149599A1 (en) * | 2001-04-12 | 2002-10-17 | Honeywell International Inc. | Methods and apparatus for displaying multiple data categories |
US7310168B2 (en) * | 2001-07-03 | 2007-12-18 | Infoprint Solutions Company Llc | Method and apparatus for controlling a spot function for digital halftoning |
JP4150206B2 (ja) * | 2001-10-29 | 2008-09-17 | 富士フイルム株式会社 | 網点閾値データ作成方法 |
US7564588B2 (en) * | 2002-01-24 | 2009-07-21 | Ricoh Company, Ltd. | Image forming device, image forming method, and recording medium that provide multi-level error diffusion |
US7345790B2 (en) * | 2003-01-21 | 2008-03-18 | Dittrich Danielle K | Method and apparatus for simulating 2 bit-per-pel printing on a bi-level printer using intelligent double dotting |
US20060197989A1 (en) * | 2005-03-07 | 2006-09-07 | Toshiba Corporation | Multi-configured halftone system |
US7599097B2 (en) * | 2005-06-10 | 2009-10-06 | Infoprint Solutions Company Llc | Method and system for designing multilevel halftone screens using spot functions |
US7986442B2 (en) * | 2007-07-09 | 2011-07-26 | Samsung Electronics Co., Ltd. | Apparatus and method to generate a halftoning screen and image forming apparatus for same |
JP4929122B2 (ja) * | 2007-10-16 | 2012-05-09 | キヤノン株式会社 | 画像処理装置およびその方法、並びに、プログラム |
US20100027074A1 (en) * | 2008-07-31 | 2010-02-04 | Sharp Laboratories Of America, Inc. | Partition halftone for multi-tone level output device |
US8537424B1 (en) * | 2009-08-21 | 2013-09-17 | Marvell International Ltd. | On-the-fly halftone image generation |
JP5623893B2 (ja) * | 2010-12-13 | 2014-11-12 | 株式会社沖データ | 画像形成装置及び方法、並びにプログラム及び記録媒体 |
Family Cites Families (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4149194A (en) * | 1977-07-07 | 1979-04-10 | Xerox Corporation | Variable angle electronic halftone screening |
JPS57142072A (en) * | 1981-02-27 | 1982-09-02 | Canon Inc | Video signal processor |
JPS58114570A (ja) * | 1981-12-26 | 1983-07-07 | Canon Inc | 画像処理装置 |
US4884080A (en) * | 1985-01-31 | 1989-11-28 | Kabushiki Kaisha Toshiba | Color image printing apparatus |
US4969052A (en) * | 1988-05-11 | 1990-11-06 | Canon Kabushiki Kaisha | Image processing method and apparatus |
US5014333A (en) * | 1988-07-21 | 1991-05-07 | Eastman Kodak Company | Image processor with smooth transitioning between dither and diffusion processes |
GB8913680D0 (en) * | 1989-06-14 | 1989-08-02 | Crosfield Electronics Ltd | Method and apparatus for generating a binary representation of an image |
US5045952A (en) * | 1989-08-21 | 1991-09-03 | Xerox Corporation | Method for edge enhanced error diffusion |
US5196942A (en) * | 1990-09-17 | 1993-03-23 | Xerox Corporation | System and method for determining picture element values |
US5287195A (en) * | 1990-09-17 | 1994-02-15 | Phoenix Technologies Ltd. | Image display apparatus and method using halftone super cells |
EP0740458B1 (de) * | 1991-02-08 | 2002-06-19 | Adobe Systems Inc. | Punktgrössensteuerverfahren bei digitaler Halbtonrasterung mit mehrzelligen Schwellenmatrix |
US5130823A (en) * | 1991-06-27 | 1992-07-14 | Cactus | Error diffusion system |
JP2500834B2 (ja) * | 1991-09-05 | 1996-05-29 | ゼロックス コーポレイション | 画素値の量子化方法及び装置 |
US5226096A (en) * | 1991-10-11 | 1993-07-06 | Xerox Corporation | Digital halftoning with selectively applied dot-to-dot error diffusion |
US5268774A (en) * | 1991-11-27 | 1993-12-07 | Xerox Corporation | Halftoning with enhanced dynamic range and edge enhanced error diffusion |
US5243443A (en) * | 1991-12-06 | 1993-09-07 | Xerox Corporation | Halftoning with error feedback and image dependent enhancement |
US5291296A (en) * | 1992-09-29 | 1994-03-01 | Xerox Corporation | Specific set of rotated screens for digital halftoning |
US5287194A (en) * | 1992-11-25 | 1994-02-15 | Xerox Corporation | Distributed printing |
US5321525A (en) * | 1992-12-14 | 1994-06-14 | Xerox Corporation | Clustered halftoning with dot-to-dot error diffusion |
US5325211A (en) * | 1993-01-04 | 1994-06-28 | Xerox Corporation | Error diffusion with output and input based feedback |
-
1995
- 1995-04-28 US US08/430,881 patent/US5587811A/en not_active Expired - Lifetime
-
1996
- 1996-04-26 WO PCT/US1996/005745 patent/WO1996034488A1/en active IP Right Grant
- 1996-04-26 DK DK96913136T patent/DK0826284T3/da active
- 1996-04-26 AU AU55739/96A patent/AU5573996A/en not_active Abandoned
- 1996-04-26 DE DE69616045T patent/DE69616045T2/de not_active Expired - Lifetime
- 1996-04-26 JP JP8532689A patent/JPH11504476A/ja not_active Ceased
- 1996-04-26 EP EP96913136A patent/EP0826284B1/de not_active Expired - Lifetime
- 1996-04-26 ES ES96913136T patent/ES2165981T3/es not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
DE69616045T2 (de) | 2002-06-06 |
US5587811A (en) | 1996-12-24 |
WO1996034488A1 (en) | 1996-10-31 |
EP0826284B1 (de) | 2001-10-17 |
DK0826284T3 (da) | 2001-12-17 |
AU5573996A (en) | 1996-11-18 |
JPH11504476A (ja) | 1999-04-20 |
ES2165981T3 (es) | 2002-04-01 |
EP0826284A4 (de) | 1998-03-18 |
EP0826284A1 (de) | 1998-03-04 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition |