DE69403581D1 - Verfahren zum Erzeugen frequenzmodulierter Halbtonbilder - Google Patents
Verfahren zum Erzeugen frequenzmodulierter HalbtonbilderInfo
- Publication number
- DE69403581D1 DE69403581D1 DE69403581T DE69403581T DE69403581D1 DE 69403581 D1 DE69403581 D1 DE 69403581D1 DE 69403581 T DE69403581 T DE 69403581T DE 69403581 T DE69403581 T DE 69403581T DE 69403581 D1 DE69403581 D1 DE 69403581D1
- Authority
- DE
- Germany
- Prior art keywords
- halftone images
- generating frequency
- modulated halftone
- modulated
- generating
- 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 - Fee Related
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
- H04N1/407—Control or modification of tonal gradation or of extreme levels, e.g. background level
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Facsimile Image Signal Circuits (AREA)
- Image Processing (AREA)
- Color Image Communication Systems (AREA)
- Compression Of Band Width Or Redundancy In Fax (AREA)
- Color, Gradation (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10633393A | 1993-08-13 | 1993-08-13 |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69403581D1 true DE69403581D1 (de) | 1997-07-10 |
DE69403581T2 DE69403581T2 (de) | 1998-02-05 |
Family
ID=22310857
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69403581T Expired - Fee Related DE69403581T2 (de) | 1993-08-13 | 1994-06-28 | Verfahren zum Erzeugen frequenzmodulierter Halbtonbilder |
Country Status (4)
Country | Link |
---|---|
US (1) | US5818604A (de) |
EP (1) | EP0639023B1 (de) |
JP (1) | JP3380337B2 (de) |
DE (1) | DE69403581T2 (de) |
Families Citing this family (36)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0691577A1 (de) * | 1994-07-06 | 1996-01-10 | Agfa-Gevaert N.V. | Verfahren zur Herstellung einer lithographischer Druckplatte |
FR2722584B1 (fr) * | 1994-07-13 | 1996-10-31 | Nouel Jean Marie | Utilisation du tramage a modulation de frequence pour alleger en offset les surfaces imprimantes |
EP0734151B1 (de) * | 1995-03-22 | 2000-06-14 | Agfa-Gevaert N.V. | Grössenmodulierte stochastische Rasterung |
EP0734148B1 (de) * | 1995-03-22 | 2000-06-14 | Agfa-Gevaert N.V. | Zeitmodulierte stochastische Halbtonrasterung |
DE69517503T2 (de) * | 1995-03-22 | 2001-02-08 | Agfa Gevaert Nv | Intensitätsmodulierte stochastische Rasterung zur Herstellung lithographischer Druckplatten |
CN1062079C (zh) * | 1995-06-21 | 2001-02-14 | 时代集团公司 | 调幅调频挂网方法 |
EP0779555B1 (de) * | 1995-12-11 | 2001-10-17 | Agfa-Gevaert N.V. | Verfahren zur Herstellung einer lithographischen Druckform nach dem Verfahren der Silbersalz-Diffusionsübertragung |
SE9602696L (sv) * | 1996-07-01 | 1998-01-02 | Forskarpatent I Linkoeping Ab | Snabbt rastreringsförfarande |
US5898820A (en) * | 1996-09-05 | 1999-04-27 | Adobe Systems Incorporated | Device for injecting high energy laser beam into optical fiber |
US6108450A (en) * | 1996-11-19 | 2000-08-22 | Brother Kogyo Kabushiki Kaisha | Threshold matrix-employed error diffusion image conversion method |
US5953498A (en) * | 1997-05-02 | 1999-09-14 | Professional Software Technologies, Inc. | Nonliner calibration of output devices |
US6445465B1 (en) * | 1997-10-02 | 2002-09-03 | Pcc Artwork Systems | Digital halftoning combining dot size modulation screen with dot frequency modulation screen within a single image |
US6690837B1 (en) * | 1998-11-03 | 2004-02-10 | Agfa-Gevaert | Screening method for overlapping sub-images |
US6433891B1 (en) * | 1998-12-14 | 2002-08-13 | Oak Technology, Inc. | Stochastic screening method with dot pattern regularity control and dot growth |
US6643032B1 (en) * | 1998-12-28 | 2003-11-04 | Xerox Corporation | Marking engine and method to optimize tone levels in a digital output system |
US6496603B1 (en) * | 1999-02-08 | 2002-12-17 | Sharp Laboratories Of America, Incorporated | Enhanced error diffusion by using directional guided line thresholding |
JP3884878B2 (ja) * | 1999-02-24 | 2007-02-21 | キヤノン株式会社 | 記録装置及び吸引回復制御方法 |
US6507666B1 (en) | 1999-05-19 | 2003-01-14 | Jesus Hill De La Torre | Method and apparatus for compensating for dot gain in stochastic printing |
US20030107768A1 (en) * | 2001-12-04 | 2003-06-12 | Crounse Kenneth R. | Halftoning with uniformly dispersed dot growth |
US20040223173A1 (en) * | 2002-10-17 | 2004-11-11 | Seiko Epson Corporation | Generating method for color conversion table, method and apparatus for creating correspondence definition data |
CN1981302B (zh) * | 2004-07-09 | 2010-12-29 | 奥林巴斯株式会社 | 图像处理装置和方法 |
US8237989B2 (en) * | 2004-07-09 | 2012-08-07 | Kabushiki Kaisha Toshiba | Method to improve a halftone by combining halftoning with algorithmic processing |
US8432582B2 (en) * | 2004-08-20 | 2013-04-30 | Xerox Corporation | Uniformity compensation in halftoned images |
US20060077468A1 (en) * | 2004-10-12 | 2006-04-13 | Xerox Corporation | System and method for smart color halftoning |
US8132508B2 (en) | 2005-04-14 | 2012-03-13 | Esko Software Bvba | Method of controlling ink film thickness on a printing plate |
CN100377567C (zh) * | 2005-10-26 | 2008-03-26 | 北京北大方正电子有限公司 | 在多位成像深度设备上的调频调幅混合网点网型控制方法 |
JP4645921B2 (ja) * | 2008-11-27 | 2011-03-09 | ソニー株式会社 | 画像信号処理装置および方法、プログラム、並びに撮像装置 |
DE102013010970A1 (de) * | 2013-07-01 | 2015-01-08 | Heidelberger Druckmaschinen Ag | Speziell gerastertes Graumessfeld |
EP2963908B1 (de) * | 2014-07-01 | 2020-10-28 | Canon Kabushiki Kaisha | Bildverarbeitungsvorrichtung, bildverarbeitungsverfahren und speichermedium |
US9925678B2 (en) | 2014-12-30 | 2018-03-27 | The Gillette Company Llc | Razor blade with a printed object |
US20160199992A1 (en) * | 2015-01-08 | 2016-07-14 | The Gillette Company | Razor cartridge with a printed lubrication member |
US10315323B2 (en) | 2015-01-08 | 2019-06-11 | The Gillette Company Llc | Razor cartridge with a printed lubrication control member |
US10675772B2 (en) | 2016-06-29 | 2020-06-09 | The Gillette Company Llc | Printed lubricious material disposed on razor blades |
US10384360B2 (en) | 2016-06-29 | 2019-08-20 | The Gillette Company Llc | Razor blade with a printed object |
CN112534801A (zh) * | 2018-08-10 | 2021-03-19 | 爱克发有限公司 | 具有成簇微网点的数字半色调处理 |
WO2023239359A1 (en) * | 2022-06-08 | 2023-12-14 | Hewlett-Packard Development Company, L.P. | Halftone pattern generation |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS56152373A (en) * | 1980-04-24 | 1981-11-25 | Fuji Photo Film Co Ltd | Laser recording device |
GB2121658A (en) * | 1982-05-28 | 1983-12-21 | Linotype Paul Ltd | Mapping ram for a modulated display |
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 |
US4965672A (en) * | 1987-05-11 | 1990-10-23 | The Mead Corporation | Method and apparatus for halftone imaging |
DE68915825T2 (de) * | 1988-03-10 | 1994-10-20 | Canon Kk | Bilderzeugungsgerät. |
US4920501A (en) * | 1988-10-19 | 1990-04-24 | Eastman Kodak Company | Digital halftoning with minimum visual modulation patterns |
US4924301A (en) * | 1988-11-08 | 1990-05-08 | Seecolor Corporation | Apparatus and methods for digital halftoning |
US5341228A (en) * | 1990-12-04 | 1994-08-23 | Research Corporation Technologies | Method and apparatus for halftone rendering of a gray scale image using a blue noise mask |
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 |
GB9101635D0 (en) * | 1991-01-25 | 1991-03-06 | Univ London | Method and apparatus for generating from a continuous-tone image a signal representative thereof |
US5363213A (en) * | 1992-06-08 | 1994-11-08 | Xerox Corporation | Unquantized resolution conversion of bitmap images using error diffusion |
US5335089A (en) * | 1992-07-29 | 1994-08-02 | R. R. Donnelley & Sons Company | Electronic high-fidelity screenless conversion system and method using a separable filter |
US5278670A (en) * | 1992-12-18 | 1994-01-11 | Xerox Corporation | Content-based resolution conversion of color documents |
US5394252A (en) * | 1994-03-02 | 1995-02-28 | Xerox Corporation | Hybrid quantization method for color document reproduction |
US5426519A (en) * | 1994-08-25 | 1995-06-20 | Xerox Corporation | Method and apparatus for implementing accurate angle screens |
-
1994
- 1994-06-28 EP EP94201857A patent/EP0639023B1/de not_active Expired - Lifetime
- 1994-06-28 DE DE69403581T patent/DE69403581T2/de not_active Expired - Fee Related
- 1994-08-11 JP JP21200894A patent/JP3380337B2/ja not_active Expired - Fee Related
-
1996
- 1996-05-02 US US08/642,115 patent/US5818604A/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
JPH0851546A (ja) | 1996-02-20 |
EP0639023B1 (de) | 1997-06-04 |
DE69403581T2 (de) | 1998-02-05 |
EP0639023A1 (de) | 1995-02-15 |
US5818604A (en) | 1998-10-06 |
JP3380337B2 (ja) | 2003-02-24 |
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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 |
|
8339 | Ceased/non-payment of the annual fee |