EP2044571A4 - Method and apparatus for image manipulation via a dither matrix - Google Patents

Method and apparatus for image manipulation via a dither matrix

Info

Publication number: EP2044571A4
Authority: EP; European Patent Office
Prior art keywords: dither matrix; image manipulation; manipulation via; image; dither
Prior art date: 2006-07-10
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 Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.): Withdrawn

Application number

EP06760845A

Other languages

German (de)

French (fr)

Other versions

EP2044571A1 (en

Inventor

Richard Thomas Plunkett

Simon Robert Walmsley

Kia Silverbrook

Raul Evelio Vera

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.)

Zamtec Ltd

Original Assignee

Silverbrook Research Pty Ltd

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.)

2006-07-10

Filing date

2006-07-10

Publication date

2011-07-06

2006-07-10 Application filed by Silverbrook Research Pty Ltd filed Critical Silverbrook Research Pty Ltd

2009-04-08 Publication of EP2044571A1 publication Critical patent/EP2044571A1/en

2011-07-06 Publication of EP2044571A4 publication Critical patent/EP2044571A4/en

Status Withdrawn legal-status Critical Current

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
- H04N1/4072—Control or modification of tonal gradation or of extreme levels, e.g. background level dependent on the contents of the original
- H04N1/4074—Control or modification of tonal gradation or of extreme levels, e.g. background level dependent on the contents of the original using histograms
- 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
- H04N1/40087—Multi-toning, i.e. converting a continuous-tone signal for reproduction with more than two discrete brightnesses or optical densities, e.g. dots of grey and black inks on white paper
- 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

EP06760845A 2006-07-10 2006-07-10 Method and apparatus for image manipulation via a dither matrix Withdrawn EP2044571A4 (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
PCT/AU2006/000975 WO2008006131A1 (en)	2006-07-10	2006-07-10	Method and apparatus for image manipulation via a dither matrix

Publications (2)

Publication Number	Publication Date
EP2044571A1 EP2044571A1 (en)	2009-04-08
EP2044571A4 true EP2044571A4 (en)	2011-07-06

Family

ID=38922825

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP06760845A Withdrawn EP2044571A4 (en)	2006-07-10	2006-07-10	Method and apparatus for image manipulation via a dither matrix

Country Status (6)

Country	Link
EP (1)	EP2044571A4 (en)
KR (1)	KR101000601B1 (en)
CN (1)	CN101496060B (en)
AU (1)	AU2006346021B2 (en)
CA (1)	CA2655306A1 (en)
WO (1)	WO2008006131A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JP2010050850A (en) *	2008-08-22	2010-03-04	Ricoh Co Ltd	Image processing device, image processing method, image forming apparatus, program, and recording medium
WO2014200495A1 (en) *	2013-06-13	2014-12-18	Hewlett-Packard Development Company, L. P.	Establish image pipeline
GB2582966A (en) *	2019-04-11	2020-10-14	Xaar Technology Ltd	Methods, apparatus and control systems for droplet deposition apparatus

Citations (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US5710828A (en) *	1995-03-30	1998-01-20	Fuji Photo Film Co., Ltd.	Method and apparatus for converting a threshold matrix which is then used to binarize image signals

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US6515770B1 (en) *	1999-03-16	2003-02-04	International Business Machines Corporation	Dither mask generation with calibration-independent number of threshold levels
US7064869B2 (en) *	2001-06-22	2006-06-20	Eastman Kodak Company	Method for halftoning a multi-channel digital color image having at least one group of similar color channels
JP2003110852A (en) *	2001-10-02	2003-04-11	Dainippon Printing Co Ltd	Halftone processing method and processor
JP2004336163A (en) *	2003-04-30	2004-11-25	Minolta Co Ltd	Apparatus, method, and program for image processing

2006
- 2006-07-10 WO PCT/AU2006/000975 patent/WO2008006131A1/en active Application Filing
- 2006-07-10 KR KR20097002006A patent/KR101000601B1/en active IP Right Grant
- 2006-07-10 AU AU2006346021A patent/AU2006346021B2/en not_active Ceased
- 2006-07-10 CA CA002655306A patent/CA2655306A1/en not_active Abandoned
- 2006-07-10 EP EP06760845A patent/EP2044571A4/en not_active Withdrawn
- 2006-07-10 CN CN2006800552744A patent/CN101496060B/en not_active Expired - Fee Related

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US5710828A (en) *	1995-03-30	1998-01-20	Fuji Photo Film Co., Ltd.	Method and apparatus for converting a threshold matrix which is then used to binarize image signals

Also Published As

Publication number	Publication date
CA2655306A1 (en)	2008-01-17
CN101496060A (en)	2009-07-29
EP2044571A1 (en)	2009-04-08
AU2006346021A1 (en)	2008-01-17
CN101496060B (en)	2012-07-04
KR101000601B1 (en)	2010-12-10
AU2006346021B2 (en)	2010-08-19
KR20090025376A (en)	2009-03-10
WO2008006131A1 (en)	2008-01-17

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Legal Events

Date	Code	Title	Description
2009-03-06	PUAI	Public reference made under article 153(3) epc to a published international application that has entered the european phase	Free format text: ORIGINAL CODE: 0009012
2009-04-08	17P	Request for examination filed	Effective date: 20090206
2009-04-08	AK	Designated contracting states	Kind code of ref document: A1 Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR
2009-04-08	AX	Request for extension of the european patent	Extension state: AL BA HR MK RS
2011-07-06	A4	Supplementary search report drawn up and despatched	Effective date: 20110608
2012-07-25	DAX	Request for extension of the european patent (deleted)
2013-01-23	RAP1	Party data changed (applicant data changed or rights of an application transferred)	Owner name: ZAMTEC LIMITED
2013-03-06	17Q	First examination report despatched	Effective date: 20130205
2014-01-17	STAA	Information on the status of an ep patent application or granted ep patent	Free format text: STATUS: THE APPLICATION HAS BEEN WITHDRAWN
2014-02-12	RAP1	Party data changed (applicant data changed or rights of an application transferred)	Owner name: ZAMTEC LIMITED
2014-02-19	18W	Application withdrawn	Effective date: 20140110