DE3381868D1 - Korrektion von schattierungseffekten in videobildern. - Google Patents

Korrektion von schattierungseffekten in videobildern.

Info

Publication number
DE3381868D1
DE3381868D1 DE8383111645T DE3381868T DE3381868D1 DE 3381868 D1 DE3381868 D1 DE 3381868D1 DE 8383111645 T DE8383111645 T DE 8383111645T DE 3381868 T DE3381868 T DE 3381868T DE 3381868 D1 DE3381868 D1 DE 3381868D1
Authority
DE
Germany
Prior art keywords
correction
video images
shading effects
shading
effects
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
DE8383111645T
Other languages
English (en)
Inventor
Dimitris Anastassiou
William Boone Pennebaker
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.)
International Business Machines Corp
Original Assignee
International Business Machines Corp
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 International Business Machines Corp filed Critical International Business Machines Corp
Application granted granted Critical
Publication of DE3381868D1 publication Critical patent/DE3381868D1/de
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
    • H04N1/403—Discrimination between the two tones in the picture signal of a two-tone original
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T5/00—Image enhancement or restoration
    • G06T5/20—Image enhancement or restoration using local operators

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Picture Signal Circuits (AREA)
  • Image Input (AREA)
  • Image Processing (AREA)
DE8383111645T 1982-12-30 1983-11-22 Korrektion von schattierungseffekten in videobildern. Expired - Fee Related DE3381868D1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US45490982A 1982-12-30 1982-12-30

Publications (1)

Publication Number Publication Date
DE3381868D1 true DE3381868D1 (de) 1990-10-11

Family

ID=23806568

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8383111645T Expired - Fee Related DE3381868D1 (de) 1982-12-30 1983-11-22 Korrektion von schattierungseffekten in videobildern.

Country Status (4)

Country Link
US (1) US4695884A (de)
EP (1) EP0113016B1 (de)
JP (1) JPS59125176A (de)
DE (1) DE3381868D1 (de)

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US6211859B1 (en) 1997-03-10 2001-04-03 Chips & Technologies, Llc Method for reducing pulsing on liquid crystal displays
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Also Published As

Publication number Publication date
EP0113016A3 (en) 1987-04-29
JPS59125176A (ja) 1984-07-19
US4695884A (en) 1987-09-22
EP0113016B1 (de) 1990-09-05
EP0113016A2 (de) 1984-07-11
JPH0432587B2 (de) 1992-05-29

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee