GB2050751B - Image-reproduction apparatus - Google Patents

Image-reproduction apparatus

Info

Publication number
GB2050751B
GB2050751B GB8016963A GB8016963A GB2050751B GB 2050751 B GB2050751 B GB 2050751B GB 8016963 A GB8016963 A GB 8016963A GB 8016963 A GB8016963 A GB 8016963A GB 2050751 B GB2050751 B GB 2050751B
Authority
GB
United Kingdom
Prior art keywords
image
reproduction apparatus
reproduction
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
Application number
GB8016963A
Other versions
GB2050751A (en
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.)
Crosfield Electronics Ltd
Original Assignee
Crosfield Electronics 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 Crosfield Electronics Ltd filed Critical Crosfield Electronics Ltd
Priority to GB8016963A priority Critical patent/GB2050751B/en
Publication of GB2050751A publication Critical patent/GB2050751A/en
Application granted granted Critical
Publication of GB2050751B publication Critical patent/GB2050751B/en
Expired 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
    • H04N1/46—Colour picture communication systems
    • H04N1/56—Processing of colour picture signals
    • H04N1/60—Colour correction or control
    • H04N1/6027—Correction or control of colour gradation or colour contrast
    • 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
    • H04N1/56—Processing of colour picture signals
    • H04N1/60—Colour correction or control
    • H04N1/6016—Conversion to subtractive colour signals
    • H04N1/6022—Generating a fourth subtractive colour signal, e.g. under colour removal, black masking
    • H04N1/6025—Generating a fourth subtractive colour signal, e.g. under colour removal, black masking using look-up tables

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Facsimile Image Signal Circuits (AREA)
GB8016963A 1979-05-30 1980-05-22 Image-reproduction apparatus Expired GB2050751B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB8016963A GB2050751B (en) 1979-05-30 1980-05-22 Image-reproduction apparatus

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB7918806 1979-05-30
GB8016963A GB2050751B (en) 1979-05-30 1980-05-22 Image-reproduction apparatus

Publications (2)

Publication Number Publication Date
GB2050751A GB2050751A (en) 1981-01-07
GB2050751B true GB2050751B (en) 1983-06-29

Family

ID=26271700

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8016963A Expired GB2050751B (en) 1979-05-30 1980-05-22 Image-reproduction apparatus

Country Status (1)

Country Link
GB (1) GB2050751B (en)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2507037B1 (en) * 1981-06-01 1989-06-09 Canon Kk COLOR IMAGE READING APPARATUS
IL67202A0 (en) * 1981-12-07 1983-03-31 Xerox Corp Apparatus and method for color adjustment of digital displays
US4500919A (en) * 1982-05-04 1985-02-19 Massachusetts Institute Of Technology Color reproduction system
US4879595A (en) * 1985-10-22 1989-11-07 Konishiroku Photo Industry Co., Ltd. Technique for reproducing an image read from a color original
US4991120A (en) * 1989-05-30 1991-02-05 Eastman Kodak Company Apparatus for interfacing video frame store with color display device
EP0410719A3 (en) * 1989-07-25 1992-01-22 Seiko Instruments Inc. Colour correction system and method
WO1991019376A1 (en) * 1990-06-01 1991-12-12 Cymbolic Sciences International Ltd. Real time transformation between colour spaces
JPH04185075A (en) * 1990-11-20 1992-07-01 Canon Inc Color picture processor
DE69418512T2 (en) * 1993-03-08 1999-10-28 Canon Kk Color conversion device
AU678798B2 (en) * 1993-03-08 1997-06-12 Canon Kabushiki Kaisha Colour conversion apparatus
JP3874544B2 (en) 1998-07-10 2007-01-31 三菱電機株式会社 Color conversion apparatus and color conversion method
US5937087A (en) * 1994-07-29 1999-08-10 Canon Kabushiki Kaisha Image processing apparatus and method thereof
JP3432414B2 (en) 1998-04-20 2003-08-04 三菱電機株式会社 Color conversion device and color conversion method
JP3432468B2 (en) 1999-01-27 2003-08-04 三菱電機株式会社 Color conversion apparatus and color conversion method
TW567711B (en) * 1999-10-14 2003-12-21 Mitsubishi Electric Corp Color conversion device and color conversion method
EP1365575A1 (en) * 2002-05-23 2003-11-26 GRETAG IMAGING Trading AG Method and apparatus for improving image contrast

Also Published As

Publication number Publication date
GB2050751A (en) 1981-01-07

Similar Documents

Publication Publication Date Title
GB2055270B (en) Facsimile apparatus
GB2057222B (en) Facsimile apparatus
GB2057166B (en) Slurry-producing apparatus
EP0030355A3 (en) Medical-examination apparatus
ZA805205B (en) Video apparatus
JPS5694868A (en) Facsimile apparatus
HK88086A (en) Apparatus
GB2048608B (en) Facsimile apparatus
JPS5675121A (en) Preparing apparatus
JPS57131461A (en) Exerise apparatus
GB2065615B (en) Note-separating apparatus
ZA806410B (en) Apparatus
GB2050751B (en) Image-reproduction apparatus
JPS5664069A (en) Covering apparatus
GB2047414B (en) Weight-testing apparatus
GB2049529B (en) Slitterscorer apparatus
GB2054145B (en) Heading-attitude reference apparatus
GB2064384B (en) Strip-joining apparatus
GB2045502B (en) Coin-separating apparatus
DK151679A (en) X-ray apparatus
GB2039211B (en) Wafer-baking apparatus
GB2050921B (en) Apparatus for roto-moulding
GB2042896B (en) Thermoevaporative insecticidal apparatus
GB2048997B (en) Ground-marking apparatus
JPS5640109A (en) Reclaining apparatus

Legal Events

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

Effective date: 19950522