DE69132912T2 - Abbildungsverfahren und -gerät - Google Patents

Abbildungsverfahren und -gerät

Info

Publication number: DE69132912T2
Authority: DE; Germany
Prior art keywords: mapping method; mapping
Prior art date: 1990-11-22
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

Application number

DE69132912T

Other languages

English (en)

Other versions

DE69132912D1 (de

Inventor

Kazuo Isaka

Toshiyuki Mizuno

Kazuo Minoura

Yoshinobu Shiraiwa

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.)

Canon Inc

Original Assignee

Canon Inc

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.)

1990-11-22

Filing date

1991-11-21

Publication date

2002-07-11

1991-05-31 Priority claimed from JP3155933A external-priority patent/JPH04355566A/ja

1991-11-21 Application filed by Canon Inc filed Critical Canon Inc

2002-03-14 Publication of DE69132912D1 publication Critical patent/DE69132912D1/de

2002-07-11 Application granted granted Critical

2002-07-11 Publication of DE69132912T2 publication Critical patent/DE69132912T2/de

2011-11-22 Anticipated expiration legal-status Critical

Status Expired - Fee Related legal-status Critical Current

Links

238000013507 mapping Methods 0.000 title 1
238000000034 method Methods 0.000 title 1

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
- H04N1/4056—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 varying in one dimension only, e.g. dash length, pulse width modulation [PWM]
- 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)
Facsimile Image Signal Circuits (AREA)

DE69132912T 1990-11-22 1991-11-21 Abbildungsverfahren und -gerät Expired - Fee Related DE69132912T2 (de)

Applications Claiming Priority (4)

Application Number	Priority Date	Filing Date	Title
JP31950790		1990-11-22
JP31950890		1990-11-22
JP3155933A JPH04355566A (ja)	1991-05-31	1991-05-31	画像表示方法および装置
JP26942291		1991-10-17

Publications (2)

Publication Number	Publication Date
DE69132912D1 DE69132912D1 (de)	2002-03-14
DE69132912T2 true DE69132912T2 (de)	2002-07-11

Family

ID=27473380

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
DE69132912T Expired - Fee Related DE69132912T2 (de)	1990-11-22	1991-11-21	Abbildungsverfahren und -gerät

Country Status (3)

Country	Link
US (1)	US5864406A (de)
EP (1)	EP0487084B1 (de)
DE (1)	DE69132912T2 (de)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JPH10173859A (ja) *	1996-12-09	1998-06-26	Canon Inc	アナログ信号処理回路
US6962400B2 (en) *	2002-09-17	2005-11-08	Agfa Gevaert N.V.	Sub-dot phase modulation for computer to plate inkjet system
JP5058663B2 (ja) *	2007-04-19	2012-10-24	キヤノン株式会社	画像形成装置
JP5137451B2 (ja) *	2007-04-19	2013-02-06	キヤノン株式会社	画像形成装置
JP5953244B2 (ja) *	2013-02-04	2016-07-20	富士フイルム株式会社	画像形成装置、方法、プログラム及び画像形成物
US20220006919A1 (en) *	2019-07-18	2022-01-06	Hewlett-Packard Development Company, L.P.	Memory device comprising coefficients for halftoning

Family Cites Families (28)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
NL263106A (de) *	1960-04-01
BE685116A (de) *	1965-08-05	1967-01-16
DE2262824C3 (de) *	1972-12-22	1975-07-10	Dr.-Ing. Rudolf Hell Gmbh, 2300 Kiel	Verfahren zur gerasterten Reproduktion farbiger Halbtonbilder im Ein- oder Mehrfarbendruck
US4149183A (en) *	1976-05-21	1979-04-10	Xerox Corporation	Electronic halftone generator
US4123274A (en) *	1977-03-16	1978-10-31	Eastman Kodak Company	Heat developable imaging materials and process
US4220709A (en) *	1977-12-08	1980-09-02	Eastman Kodak Company	Heat developable imaging materials and process
JPS57159173A (en) *	1981-03-26	1982-10-01	Canon Inc	Image processor
GB2103449B (en) *	1981-06-29	1985-05-30	Nippon Telegraph & Telephone	Method and apparatus for gray level signal processing
JPS5829677A (ja) *	1981-08-13	1983-02-21	Sony Corp	階調プリント信号発生装置
JPS58118639A (ja) *	1982-01-08	1983-07-14	Konishiroku Photo Ind Co Ltd	熱現像感光材料
JPS58118638A (ja) *	1982-01-08	1983-07-14	Konishiroku Photo Ind Co Ltd	熱現像感光材料
JPS58161574A (ja) *	1982-03-19	1983-09-26	Fuji Xerox Co Ltd	色分離回路
JPH0691604B2 (ja) *	1983-09-02	1994-11-14	株式会社リコー	階調情報変倍処理方法
US4859568A (en) *	1985-02-08	1989-08-22	Fuji Photo Film Co., Ltd.	Photographic image recording method using silver halide and vinyl monomer
US4709250A (en) *	1985-02-19	1987-11-24	Canon Kabushiki Kaisha	Image forming apparatus
US4800442A (en) *	1985-08-15	1989-01-24	Canon Kabushiki Kaisha	Apparatus for generating an image from a digital video signal
US4847695A (en) *	1986-02-06	1989-07-11	Canon Kabushiki Kaisha	Image processing apparatus in which the minimum and maximum widths of a pulse-width modulated signal can be independently adjusted in accordance with predetermined data signals
US4680645A (en) *	1986-08-25	1987-07-14	Hewlett-Packard Company	Method for rendering gray scale images with variable dot sizes
US4989079A (en) *	1987-10-23	1991-01-29	Ricoh Company, Ltd.	Color correction device and method having a hue area judgement unit
US5004667A (en) *	1987-12-15	1991-04-02	Canon Kabushiki Kaisha	Photosensitive material, and image formation process and image formation apparatus using same
JPH01264076A (ja) *	1988-04-14	1989-10-20	Dainippon Screen Mfg Co Ltd	分割露光化網点画像記録装置
ES2081850T3 (es) *	1988-10-04	1996-03-16	Canon Kk	Aparato para el proceso de imagenes en color.
US5148287A (en) *	1988-10-20	1992-09-15	Canon Kabushiki Kaisha	Image processing apparatus with good highlight reproduction
JPH0358047A (ja) *	1989-07-27	1991-03-13	Canon Inc	画像形成装置
US5124802A (en) *	1989-09-26	1992-06-23	Canon Kabushiki Kaisha	Electrostatic lasar printer with a short side length of a modulation area formed by pulse width modulation set relative to a detected toner particle size
US5345320A (en) *	1990-11-29	1994-09-06	Minolta Camera Kabushiki Kaisha	Color image data processing apparatus comprising monochrome pixel detector
JP3302041B2 (ja) *	1992-03-05	2002-07-15	キヤノン株式会社	画像処理装置
JP3210099B2 (ja) *	1992-11-05	2001-09-17	キヤノン株式会社	画像処理装置および画像処理方法

1991
- 1991-11-21 DE DE69132912T patent/DE69132912T2/de not_active Expired - Fee Related
- 1991-11-21 EP EP91119875A patent/EP0487084B1/de not_active Expired - Lifetime
- 1991-11-22 US US07/796,393 patent/US5864406A/en not_active Expired - Fee Related

Also Published As

Publication number	Publication date
EP0487084B1 (de)	2002-01-30
DE69132912D1 (de)	2002-03-14
EP0487084A2 (de)	1992-05-27
EP0487084A3 (en)	1993-03-03
US5864406A (en)	1999-01-26

Legal Events

Date	Code	Title	Description
2003-02-27	8364	No opposition during term of opposition
2009-09-17	8339	Ceased/non-payment of the annual fee

Publication	Publication Date	Title
DE69133624D1 (de)	2009-12-03	Messverfahren und -vorrichtung
DE59209450D1 (de)	1998-09-10	Stereografie-vorrichtung und -verfahren
DE69120295D1 (de)	1996-07-18	Elektrodeionisierungsvorrichtung
DE69225964D1 (de)	1998-07-23	Messverfahren und gerät
DE69231845T2 (de)	2001-10-31	Nachrichtenübertragungsverfahren und -vorrichtung
ATA287888A (de)	1991-10-15	Schattierungseinrichtung
DK165463C (da)	1993-04-19	Taetnings- og afstrygningsindretning
DE69123646D1 (de)	1997-01-30	Kodierverfahren und -vorrichtung
DE69204917D1 (de)	1995-10-26	Messverfahren und -vorrichtung.
KR920012428U (ko)	1992-07-25	연결 장치
DE69120643D1 (de)	1996-08-08	Satzadressierprozess und -vorrichtung
DE69129713T2 (de)	1998-12-17	Ausgabeverfahren und -gerät
DE69212819D1 (de)	1996-09-19	Aufbaumethode und -vorrichtung
DE69130191T2 (de)	1999-03-04	Übertragungsverfahren und -gerät
DE69117629D1 (de)	1996-04-11	Bildänderungsverfahren und -gerät
DE69211086D1 (de)	1996-07-04	Messverfahren und Messgerät
DE69028404D1 (de)	1996-10-10	Rückentragbares Gerät
DE69132912D1 (de)	2002-03-14	Abbildungsverfahren und -gerät
DE4290948T1 (de)	1994-01-13	Funktionswählverfahren und -vorrichtung
IT9020592A0 (it)	1990-06-08	procedimento e dispositivo
DE69124161D1 (de)	1997-02-27	Figurverarbeitungs-verfahren und -vorrichtung
NO930607D0 (no)	1993-02-22	Forskalingsanordning
IT1247290B (it)	1994-12-12	Procedimento e dispositivo di disaccoppiamento
DE69113309D1 (de)	1995-11-02	Halbtonrasterabbildungsverfahren und -gerät.
KR920001672A (ko)	1992-01-30	반송방법 및 반송장치