DE60215097D1 - Verfahren und Vorrichtung zur Tonübersetzung numerischer Bildern mit Verwendung einer auf besonderen Wahrnemungsrichtlinien basierten adaptativen Sigmoidalfunktion - Google Patents

Verfahren und Vorrichtung zur Tonübersetzung numerischer Bildern mit Verwendung einer auf besonderen Wahrnemungsrichtlinien basierten adaptativen Sigmoidalfunktion

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Publication number
DE60215097D1
DE60215097D1 DE60215097T DE60215097T DE60215097D1 DE 60215097 D1 DE60215097 D1 DE 60215097D1 DE 60215097 T DE60215097 T DE 60215097T DE 60215097 T DE60215097 T DE 60215097T DE 60215097 D1 DE60215097 D1 DE 60215097D1
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DE
Germany
Prior art keywords
guidelines
adaptive
function based
sigmoidal function
numerical 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.)
Expired - Fee Related
Application number
DE60215097T
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English (en)
Other versions
DE60215097T2 (de
Inventor
Xuemei Zhang
W Jones
Izhak Baharav
Donald M Reid
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Agilent Technologies Inc
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Agilent Technologies Inc
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Publication date
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Publication of DE60215097D1 publication Critical patent/DE60215097D1/de
Publication of DE60215097T2 publication Critical patent/DE60215097T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G06T5/92—
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T5/00—Image enhancement or restoration
    • G06T5/40—Image enhancement or restoration by the use of histogram techniques
    • 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
    • H04N1/407—Control or modification of tonal gradation or of extreme levels, e.g. background level
    • H04N1/4072—Control or modification of tonal gradation or of extreme levels, e.g. background level dependent on the contents of the original
    • H04N1/4074—Control or modification of tonal gradation or of extreme levels, e.g. background level dependent on the contents of the original using histograms

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Image Processing (AREA)
  • Facsimile Image Signal Circuits (AREA)
  • Color Image Communication Systems (AREA)
DE60215097T 2001-04-20 2002-01-11 Verfahren und Vorrichtung zur Tonübersetzung numerischer Bildern mit Verwendung einer auf besonderen Wahrnemungsrichtlinien basierten adaptativen Sigmoidalfunktion Expired - Fee Related DE60215097T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US839335 2001-04-20
US09/839,335 US7023580B2 (en) 2001-04-20 2001-04-20 System and method for digital image tone mapping using an adaptive sigmoidal function based on perceptual preference guidelines

Publications (2)

Publication Number Publication Date
DE60215097D1 true DE60215097D1 (de) 2006-11-16
DE60215097T2 DE60215097T2 (de) 2007-04-05

Family

ID=25279458

Family Applications (1)

Application Number Title Priority Date Filing Date
DE60215097T Expired - Fee Related DE60215097T2 (de) 2001-04-20 2002-01-11 Verfahren und Vorrichtung zur Tonübersetzung numerischer Bildern mit Verwendung einer auf besonderen Wahrnemungsrichtlinien basierten adaptativen Sigmoidalfunktion

Country Status (4)

Country Link
US (1) US7023580B2 (de)
EP (1) EP1302898B1 (de)
JP (1) JP2003044846A (de)
DE (1) DE60215097T2 (de)

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Also Published As

Publication number Publication date
US20020171852A1 (en) 2002-11-21
DE60215097T2 (de) 2007-04-05
JP2003044846A (ja) 2003-02-14
EP1302898A3 (de) 2005-01-19
US7023580B2 (en) 2006-04-04
EP1302898A2 (de) 2003-04-16
EP1302898B1 (de) 2006-10-04

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Representative=s name: SCHOPPE, ZIMMERMANN, STOECKELER & ZINKLER, 82049 P

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Owner name: AGILENT TECHNOLOGIES, INC. (N.D.GES.D. STAATES, US

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