DE60323310D1 - Verbesserung der Tönnungscharakteristik von Digitalbildern mittels Beugungspunkten in einer Farbtonskalierungsfunktion - Google Patents

Verbesserung der Tönnungscharakteristik von Digitalbildern mittels Beugungspunkten in einer Farbtonskalierungsfunktion

Info

Publication number
DE60323310D1
DE60323310D1 DE60323310T DE60323310T DE60323310D1 DE 60323310 D1 DE60323310 D1 DE 60323310D1 DE 60323310 T DE60323310 T DE 60323310T DE 60323310 T DE60323310 T DE 60323310T DE 60323310 D1 DE60323310 D1 DE 60323310D1
Authority
DE
Germany
Prior art keywords
improvement
color tone
digital images
scaling function
diffraction points
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 - Lifetime
Application number
DE60323310T
Other languages
English (en)
Inventor
Edward B Gindele
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.)
Eastman Kodak Co
Original Assignee
Eastman Kodak Co
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 Eastman Kodak Co filed Critical Eastman Kodak Co
Application granted granted Critical
Publication of DE60323310D1 publication Critical patent/DE60323310D1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T5/00—Image enhancement or restoration
    • G06T5/90—Dynamic range modification of images or parts thereof
    • G06T5/92—Dynamic range modification of images or parts thereof based on global image properties
    • 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 using 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

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)
DE60323310T 2002-09-19 2003-09-08 Verbesserung der Tönnungscharakteristik von Digitalbildern mittels Beugungspunkten in einer Farbtonskalierungsfunktion Expired - Lifetime DE60323310D1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US10/246,856 US7158686B2 (en) 2002-09-19 2002-09-19 Enhancing the tonal characteristics of digital images using inflection points in a tone scale function

Publications (1)

Publication Number Publication Date
DE60323310D1 true DE60323310D1 (de) 2008-10-16

Family

ID=31946427

Family Applications (1)

Application Number Title Priority Date Filing Date
DE60323310T Expired - Lifetime DE60323310D1 (de) 2002-09-19 2003-09-08 Verbesserung der Tönnungscharakteristik von Digitalbildern mittels Beugungspunkten in einer Farbtonskalierungsfunktion

Country Status (4)

Country Link
US (1) US7158686B2 (de)
EP (1) EP1400921B1 (de)
JP (1) JP4508565B2 (de)
DE (1) DE60323310D1 (de)

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Also Published As

Publication number Publication date
EP1400921A3 (de) 2005-11-23
EP1400921A2 (de) 2004-03-24
EP1400921B1 (de) 2008-09-03
US20040057632A1 (en) 2004-03-25
JP4508565B2 (ja) 2010-07-21
US7158686B2 (en) 2007-01-02
JP2004145864A (ja) 2004-05-20

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