GB2053619B - Interpolation methods and apparatus - Google Patents

Interpolation methods and apparatus

Info

Publication number
GB2053619B
GB2053619B GB8021383A GB8021383A GB2053619B GB 2053619 B GB2053619 B GB 2053619B GB 8021383 A GB8021383 A GB 8021383A GB 8021383 A GB8021383 A GB 8021383A GB 2053619 B GB2053619 B GB 2053619B
Authority
GB
United Kingdom
Prior art keywords
interpolation methods
interpolation
methods
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
GB8021383A
Other versions
GB2053619A (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 GB8021383A priority Critical patent/GB2053619B/en
Publication of GB2053619A publication Critical patent/GB2053619A/en
Application granted granted Critical
Publication of GB2053619B publication Critical patent/GB2053619B/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
    • H04N1/6016—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)
  • Color Image Communication Systems (AREA)
  • Facsimile Image Signal Circuits (AREA)
GB8021383A 1979-07-03 1980-06-30 Interpolation methods and apparatus Expired GB2053619B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB8021383A GB2053619B (en) 1979-07-03 1980-06-30 Interpolation methods and apparatus

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB7923175 1979-07-03
GB8021383A GB2053619B (en) 1979-07-03 1980-06-30 Interpolation methods and apparatus

Publications (2)

Publication Number Publication Date
GB2053619A GB2053619A (en) 1981-02-04
GB2053619B true GB2053619B (en) 1983-11-02

Family

ID=26272055

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8021383A Expired GB2053619B (en) 1979-07-03 1980-06-30 Interpolation methods and apparatus

Country Status (1)

Country Link
GB (1) GB2053619B (en)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4500919A (en) * 1982-05-04 1985-02-19 Massachusetts Institute Of Technology Color reproduction system
EP0171954B1 (en) * 1984-08-17 1992-04-22 Crosfield Electronics Limited Image enhancement
GB8514608D0 (en) 1985-06-10 1985-07-10 Crosfield Electronics Ltd Colour modification in image reproduction systems
EP0410719A3 (en) * 1989-07-25 1992-01-22 Seiko Instruments Inc. Colour correction system and method
JPH04185075A (en) * 1990-11-20 1992-07-01 Canon Inc Color picture processor
JPH0514683A (en) * 1991-07-01 1993-01-22 Canon Inc Picture processing unit
DE59108877D1 (en) * 1991-08-20 1997-11-20 Gretag Ag Method and device for determining raster percentage values
US5337166A (en) * 1992-02-14 1994-08-09 Fuji Xerox Co., Ltd. Color signal transforming apparatus
JP2906814B2 (en) * 1992-02-14 1999-06-21 富士ゼロックス株式会社 Color signal converter
US5377024A (en) * 1992-05-04 1994-12-27 Hewlett-Packard Apparatus for forming color images using a hue-plus-gray color model
EP0574905B1 (en) * 1992-06-19 1998-09-02 Matsushita Electric Industrial Co., Ltd. Method and apparatus for forming color images
GB2275584B (en) * 1993-02-25 1997-05-14 Quantel Ltd An image processing system
US5559903A (en) * 1993-04-08 1996-09-24 Linotype Hell Ag Method for generating geometric masks with a digital color computer
GB2277220B (en) * 1993-04-14 1997-11-05 Quantel Ltd An apparatus for and method of image processing
GB9507258D0 (en) * 1995-04-07 1995-05-31 Pandora Int Ltd Data handling systems
JP2747987B2 (en) * 1995-05-23 1998-05-06 セイコー電子機器株式会社 Color correction device
DE19641822A1 (en) 1996-10-10 1998-04-16 Hell Ag Linotype Process for interpolation in an n-dimensional color space

Also Published As

Publication number Publication date
GB2053619A (en) 1981-02-04

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Legal Events

Date Code Title Description
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19990630