HK1098563A1 - Methods and systems for converting images from low dynamic range to high dynamic range - Google Patents

Methods and systems for converting images from low dynamic range to high dynamic range

Info

Publication number
HK1098563A1
HK1098563A1 HK07105950.0A HK07105950A HK1098563A1 HK 1098563 A1 HK1098563 A1 HK 1098563A1 HK 07105950 A HK07105950 A HK 07105950A HK 1098563 A1 HK1098563 A1 HK 1098563A1
Authority
HK
Hong Kong
Prior art keywords
dynamic range
systems
methods
converting images
high dynamic
Prior art date
Application number
HK07105950.0A
Other languages
English (en)
Inventor
Lorne A Whitehead
Helge Seetzen
Gregory John Ward
Original Assignee
Dolby Lab Licensing 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 Dolby Lab Licensing Corp filed Critical Dolby Lab Licensing Corp
Publication of HK1098563A1 publication Critical patent/HK1098563A1/xx

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
    • G06T5/94—Dynamic range modification of images or parts thereof based on local image properties, e.g. for local contrast enhancement
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/79—Processing of colour television signals in connection with recording
    • H04N9/80—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T2207/00—Indexing scheme for image analysis or image enhancement
    • G06T2207/10—Image acquisition modality
    • G06T2207/10024—Color image
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T2207/00—Indexing scheme for image analysis or image enhancement
    • G06T2207/20—Special algorithmic details
    • G06T2207/20172—Image enhancement details
    • G06T2207/20208—High dynamic range [HDR] image processing

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)
  • Processing Of Color Television Signals (AREA)
HK07105950.0A 2004-04-15 2007-06-06 Methods and systems for converting images from low dynamic range to high dynamic range HK1098563A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US56224004P 2004-04-15 2004-04-15
PCT/CA2004/002198 WO2005101309A1 (fr) 2004-04-15 2004-12-24 Procedes et systemes de conversion d'images d'une plage dynamique faible a une plage dynamique elevee

Publications (1)

Publication Number Publication Date
HK1098563A1 true HK1098563A1 (en) 2007-07-20

Family

ID=35150201

Family Applications (1)

Application Number Title Priority Date Filing Date
HK07105950.0A HK1098563A1 (en) 2004-04-15 2007-06-06 Methods and systems for converting images from low dynamic range to high dynamic range

Country Status (9)

Country Link
US (3) US8265378B2 (fr)
EP (2) EP1745436B1 (fr)
JP (1) JP4814217B2 (fr)
KR (1) KR101012270B1 (fr)
CN (2) CN1954339B (fr)
CA (1) CA2563520C (fr)
DK (1) DK1745436T3 (fr)
HK (1) HK1098563A1 (fr)
WO (1) WO2005101309A1 (fr)

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Also Published As

Publication number Publication date
EP2492867A2 (fr) 2012-08-29
EP1745436A4 (fr) 2008-07-02
EP2492867B1 (fr) 2016-08-03
DK1745436T3 (da) 2012-09-10
CN101901480A (zh) 2010-12-01
JP2007534060A (ja) 2007-11-22
US20120176399A1 (en) 2012-07-12
US8265378B2 (en) 2012-09-11
CN1954339A (zh) 2007-04-25
EP1745436A1 (fr) 2007-01-24
CN1954339B (zh) 2010-05-12
US20080031517A1 (en) 2008-02-07
WO2005101309A1 (fr) 2005-10-27
US8249337B2 (en) 2012-08-21
EP2492867A3 (fr) 2012-10-31
US20070269104A1 (en) 2007-11-22
US8509528B2 (en) 2013-08-13
KR20070004853A (ko) 2007-01-09
CA2563520C (fr) 2014-12-16
JP4814217B2 (ja) 2011-11-16
EP1745436B1 (fr) 2012-05-30
KR101012270B1 (ko) 2011-02-07
CN101901480B (zh) 2013-03-06
CA2563520A1 (fr) 2005-10-27

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