GB2576186B - Halftoning method - Google Patents

Halftoning method Download PDF

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Publication number
GB2576186B
GB2576186B GB1812896.7A GB201812896A GB2576186B GB 2576186 B GB2576186 B GB 2576186B GB 201812896 A GB201812896 A GB 201812896A GB 2576186 B GB2576186 B GB 2576186B
Authority
GB
United Kingdom
Prior art keywords
halftoning method
halftoning
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
Application number
GB1812896.7A
Other versions
GB2576186A (en
GB201812896D0 (en
Inventor
Julius Dahlseth Klaus
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.)
Missing Ink As
Original Assignee
Missing Ink As
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.)
Filing date
Publication date
Application filed by Missing Ink As filed Critical Missing Ink As
Priority to GB1812896.7A priority Critical patent/GB2576186B/en
Publication of GB201812896D0 publication Critical patent/GB201812896D0/en
Priority to PCT/NO2019/050159 priority patent/WO2020032801A1/en
Publication of GB2576186A publication Critical patent/GB2576186A/en
Application granted granted Critical
Publication of GB2576186B publication Critical patent/GB2576186B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • 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
    • H04N1/4057—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 being a mixture of differently sized sub-patterns, e.g. spots having only a few different diameters
    • 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
    • H04N1/409—Edge or detail enhancement; Noise or error suppression
    • 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)
  • Image Processing (AREA)
GB1812896.7A 2018-08-08 2018-08-08 Halftoning method Expired - Fee Related GB2576186B (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB1812896.7A GB2576186B (en) 2018-08-08 2018-08-08 Halftoning method
PCT/NO2019/050159 WO2020032801A1 (en) 2018-08-08 2019-07-26 Halftoning method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1812896.7A GB2576186B (en) 2018-08-08 2018-08-08 Halftoning method

Publications (3)

Publication Number Publication Date
GB201812896D0 GB201812896D0 (en) 2018-09-19
GB2576186A GB2576186A (en) 2020-02-12
GB2576186B true GB2576186B (en) 2021-01-13

Family

ID=63518514

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1812896.7A Expired - Fee Related GB2576186B (en) 2018-08-08 2018-08-08 Halftoning method

Country Status (1)

Country Link
GB (1) GB2576186B (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004066614A (en) * 2002-08-06 2004-03-04 Think Laboratory Co Ltd Gravure printing method with water-based gravure ink, plate cylinder used for execution thereof and printed matter printed by the method
JP2004066566A (en) * 2002-08-05 2004-03-04 Think Laboratory Co Ltd Gravure platemaking method
US6760126B1 (en) * 2000-06-20 2004-07-06 Hewlett-Packard Development Company, L.P. Adaptive halftoning method and apparatus
EP1558017A2 (en) * 2004-01-26 2005-07-27 Hewlett-Packard Development Company, L.P. Halftoning method and system
US20060170974A1 (en) * 2005-01-28 2006-08-03 Hsi-Chun Wang Method of watermark with hybrid halftone dots

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6760126B1 (en) * 2000-06-20 2004-07-06 Hewlett-Packard Development Company, L.P. Adaptive halftoning method and apparatus
JP2004066566A (en) * 2002-08-05 2004-03-04 Think Laboratory Co Ltd Gravure platemaking method
JP2004066614A (en) * 2002-08-06 2004-03-04 Think Laboratory Co Ltd Gravure printing method with water-based gravure ink, plate cylinder used for execution thereof and printed matter printed by the method
EP1558017A2 (en) * 2004-01-26 2005-07-27 Hewlett-Packard Development Company, L.P. Halftoning method and system
US20060170974A1 (en) * 2005-01-28 2006-08-03 Hsi-Chun Wang Method of watermark with hybrid halftone dots

Also Published As

Publication number Publication date
GB2576186A (en) 2020-02-12
GB201812896D0 (en) 2018-09-19

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Legal Events

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COOA Change in applicant's name or ownership of the application

Owner name: MISSING INK AS

Free format text: FORMER OWNER: MAKE IT SHINE AS

PCNP Patent ceased through non-payment of renewal fee

Effective date: 20220808