GB2221366B - Method of converting gradations of a digital image,a circuit therefor and a print density controlling apparatus and a printer using this method - Google Patents

Method of converting gradations of a digital image,a circuit therefor and a print density controlling apparatus and a printer using this method

Info

Publication number
GB2221366B
GB2221366B GB8914163A GB8914163A GB2221366B GB 2221366 B GB2221366 B GB 2221366B GB 8914163 A GB8914163 A GB 8914163A GB 8914163 A GB8914163 A GB 8914163A GB 2221366 B GB2221366 B GB 2221366B
Authority
GB
United Kingdom
Prior art keywords
printer
digital image
controlling apparatus
print density
circuit therefor
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
GB8914163A
Other versions
GB8914163D0 (en
GB2221366A (en
Inventor
Masaki Harada
Hiroshi Kano
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.)
Sanyo Electric Co Ltd
Original Assignee
Sanyo Electric Co 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.)
Filing date
Publication date
Application filed by Sanyo Electric Co Ltd filed Critical Sanyo Electric Co Ltd
Publication of GB8914163D0 publication Critical patent/GB8914163D0/en
Publication of GB2221366A publication Critical patent/GB2221366A/en
Application granted granted Critical
Publication of GB2221366B publication Critical patent/GB2221366B/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K15/00—Arrangements for producing a permanent visual presentation of the output data, e.g. computer output printers
    • G06K15/02—Arrangements for producing a permanent visual presentation of the output data, e.g. computer output printers using printers
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K2215/00—Arrangements for producing a permanent visual presentation of the output data
    • G06K2215/0002—Handling the output data
    • G06K2215/004—Generic data transformation
    • G06K2215/006—Anti-aliasing raster data
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K2215/00—Arrangements for producing a permanent visual presentation of the output data
    • G06K2215/0002—Handling the output data
    • G06K2215/0062—Handling the output data combining generic and host data, e.g. filling a raster
    • G06K2215/0071—Post-treatment of the composed image, e.g. compression, rotation
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K2215/00—Arrangements for producing a permanent visual presentation of the output data
    • G06K2215/0082—Architecture adapted for a particular function
    • G06K2215/0094—Colour printing

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Electronic Switches (AREA)
  • Color, Gradation (AREA)
GB8914163A 1988-06-20 1989-06-20 Method of converting gradations of a digital image,a circuit therefor and a print density controlling apparatus and a printer using this method Expired - Fee Related GB2221366B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP63151768A JPH0780310B2 (en) 1988-06-20 1988-06-20 Recording density control method for thermal transfer printer

Publications (3)

Publication Number Publication Date
GB8914163D0 GB8914163D0 (en) 1989-08-09
GB2221366A GB2221366A (en) 1990-01-31
GB2221366B true GB2221366B (en) 1992-11-18

Family

ID=15525870

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8914163A Expired - Fee Related GB2221366B (en) 1988-06-20 1989-06-20 Method of converting gradations of a digital image,a circuit therefor and a print density controlling apparatus and a printer using this method

Country Status (4)

Country Link
JP (1) JPH0780310B2 (en)
DE (1) DE3919979A1 (en)
FR (1) FR2633077B1 (en)
GB (1) GB2221366B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2842484B2 (en) * 1990-04-19 1999-01-06 三菱電機株式会社 Halftone recording device
EP0482924B1 (en) * 1990-10-24 1997-09-24 Canon Kabushiki Kaisha Image transmission, reception and recording apparatus
KR100188439B1 (en) * 1990-11-28 1999-06-01 윤종용 Resolution of image data and its gray-level transformation device

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2127647A (en) * 1982-09-21 1984-04-11 Konishiroku Photo Ind Image processing method
WO1986005901A1 (en) * 1985-04-01 1986-10-09 Eastman Kodak Company Apparatus and method for modifying color digital images
GB2207023A (en) * 1987-06-11 1989-01-18 Seikosha Kk Video printer

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2280274A1 (en) * 1974-07-25 1976-02-20 Cit Alcatel Picture transmission system - video signal in sender converted into binary data signal and reconverted in receiver
JPS58150376A (en) * 1982-03-02 1983-09-07 Sony Corp Video signal processor
JPS59163953A (en) * 1983-03-08 1984-09-17 Canon Inc Picture processing device
JPS59227472A (en) * 1983-06-09 1984-12-20 Hitachi Ltd Thermal transfer printer
US4829584A (en) * 1985-03-26 1989-05-09 Dainippon Screen Mfg. Co., Ltd. Image input system
JPS6261475A (en) * 1985-09-12 1987-03-18 Olympus Optical Co Ltd Recording method for pseudo half tone in binary recorder
JPS62256574A (en) * 1986-04-30 1987-11-09 Fuji Xerox Co Ltd Imaging device

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2127647A (en) * 1982-09-21 1984-04-11 Konishiroku Photo Ind Image processing method
WO1986005901A1 (en) * 1985-04-01 1986-10-09 Eastman Kodak Company Apparatus and method for modifying color digital images
GB2207023A (en) * 1987-06-11 1989-01-18 Seikosha Kk Video printer

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
JP-61-157191 A *

Also Published As

Publication number Publication date
DE3919979A1 (en) 1989-12-21
DE3919979C2 (en) 1992-06-04
GB8914163D0 (en) 1989-08-09
JPH0780310B2 (en) 1995-08-30
FR2633077B1 (en) 1995-04-21
JPH023347A (en) 1990-01-08
FR2633077A1 (en) 1989-12-22
GB2221366A (en) 1990-01-31

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20060620