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GB2255470A - Image handling - Google Patents

Image handling

Info

Publication number
GB2255470A
GB2255470A GB9210992A GB9210992A GB2255470A GB 2255470 A GB2255470 A GB 2255470A GB 9210992 A GB9210992 A GB 9210992A GB 9210992 A GB9210992 A GB 9210992A GB 2255470 A GB2255470 A GB 2255470A
Authority
GB
United Kingdom
Prior art keywords
data
image
colour
image content
images
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.)
Granted
Application number
GB9210992A
Other versions
GB2255470B (en
GB9210992D0 (en
Inventor
Robert Harry Colvill
Derek Rae Lowther
Colin Shenton
Robert Trueman Shilito
Rosemary Trinder
Andrew Francis Wallis
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.)
De la Rue International Ltd
Original Assignee
Thomas De la Rue and 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
Priority claimed from GB909002138A external-priority patent/GB9002138D0/en
Priority claimed from GB909018108A external-priority patent/GB9018108D0/en
Priority claimed from PCT/GB1991/000143 external-priority patent/WO1991011877A1/en
Application filed by Thomas De la Rue and Co Ltd filed Critical Thomas De la Rue and Co Ltd
Priority to GB9210992A priority Critical patent/GB2255470B/en
Publication of GB9210992D0 publication Critical patent/GB9210992D0/en
Publication of GB2255470A publication Critical patent/GB2255470A/en
Application granted granted Critical
Publication of GB2255470B publication Critical patent/GB2255470B/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • H04N1/62—Retouching, i.e. modification of isolated colours only or in isolated picture areas only
    • H04N1/622—Retouching, i.e. modification of isolated colours only or in isolated picture areas only with simulation on a subsidiary picture reproducer
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Editing Of Facsimile Originals (AREA)
  • Image Processing (AREA)

Abstract

Apparatus for handling digital representations of documents which are to be provided with a number of images comprises a first store (3) for storing digital data defining the image content of each pixel of each image; and a colour data generator (4) for generating data defining, independently of the image content data, the colour of each pixel of each image or combination of images as defined by a user. A processor (1) selectively combines the image content data and colour data to enable selected images to be viewed separately or in combination as allowed by the layering structure provided.
GB9210992A 1990-01-31 1992-05-22 Image handling Expired - Lifetime GB2255470B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9210992A GB2255470B (en) 1990-01-31 1992-05-22 Image handling

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
GB909002138A GB9002138D0 (en) 1990-01-31 1990-01-31 Image handling
GB909018108A GB9018108D0 (en) 1990-08-17 1990-08-17 Image handling
PCT/GB1991/000143 WO1991011877A1 (en) 1990-01-31 1991-01-31 Image handling
GB9210992A GB2255470B (en) 1990-01-31 1992-05-22 Image handling

Publications (3)

Publication Number Publication Date
GB9210992D0 GB9210992D0 (en) 1992-07-22
GB2255470A true GB2255470A (en) 1992-11-04
GB2255470B GB2255470B (en) 1994-01-05

Family

ID=27264910

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9210992A Expired - Lifetime GB2255470B (en) 1990-01-31 1992-05-22 Image handling

Country Status (1)

Country Link
GB (1) GB2255470B (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2180427A (en) * 1983-11-03 1987-03-25 Bank Of England Image formation and storage
US4800380A (en) * 1982-12-21 1989-01-24 Convergent Technologies Multi-plane page mode video memory controller

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4800380A (en) * 1982-12-21 1989-01-24 Convergent Technologies Multi-plane page mode video memory controller
GB2180427A (en) * 1983-11-03 1987-03-25 Bank Of England Image formation and storage

Also Published As

Publication number Publication date
GB2255470B (en) 1994-01-05
GB9210992D0 (en) 1992-07-22

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Legal Events

Date Code Title Description
PE20 Patent expired after termination of 20 years

Expiry date: 20110130