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GB2625218B - Method and apparatus for conversion of HDR signals - Google Patents

Method and apparatus for conversion of HDR signals Download PDF

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Publication number
GB2625218B
GB2625218B GB2402030.7A GB202402030A GB2625218B GB 2625218 B GB2625218 B GB 2625218B GB 202402030 A GB202402030 A GB 202402030A GB 2625218 B GB2625218 B GB 2625218B
Authority
GB
United Kingdom
Prior art keywords
conversion
hdr signals
hdr
signals
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.)
Active
Application number
GB2402030.7A
Other versions
GB2625218A (en
GB202402030D0 (en
Inventor
Cotton Andrew
Thompson Simon
Dunne Andrew
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.)
British Broadcasting Corp
Original Assignee
British Broadcasting 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 British Broadcasting Corp filed Critical British Broadcasting Corp
Priority to GB2402030.7A priority Critical patent/GB2625218B/en
Priority claimed from GB2109857.9A external-priority patent/GB2608990B/en
Publication of GB202402030D0 publication Critical patent/GB202402030D0/en
Publication of GB2625218A publication Critical patent/GB2625218A/en
Application granted granted Critical
Publication of GB2625218B publication Critical patent/GB2625218B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/14—Picture signal circuitry for video frequency region
    • H04N5/20—Circuitry for controlling amplitude response
    • H04N5/202—Gamma control
    • 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
    • H04N1/6058—Reduction of colour to a range of reproducible colours, e.g. to ink- reproducible colour gamut

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Processing Of Color Television Signals (AREA)
GB2402030.7A 2021-07-08 2021-07-08 Method and apparatus for conversion of HDR signals Active GB2625218B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2402030.7A GB2625218B (en) 2021-07-08 2021-07-08 Method and apparatus for conversion of HDR signals

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB2402030.7A GB2625218B (en) 2021-07-08 2021-07-08 Method and apparatus for conversion of HDR signals
GB2109857.9A GB2608990B (en) 2021-07-08 2021-07-08 Method and apparatus for conversion of HDR signals

Publications (3)

Publication Number Publication Date
GB202402030D0 GB202402030D0 (en) 2024-03-27
GB2625218A GB2625218A (en) 2024-06-12
GB2625218B true GB2625218B (en) 2024-11-13

Family

ID=91079174

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2402030.7A Active GB2625218B (en) 2021-07-08 2021-07-08 Method and apparatus for conversion of HDR signals

Country Status (1)

Country Link
GB (1) GB2625218B (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2539917A (en) * 2015-06-30 2017-01-04 British Broadcasting Corp Method and apparatus for conversion of HDR signals
US20180047141A1 (en) * 2016-08-11 2018-02-15 Intel Corporation Brightness control for spatially adaptive tone mapping of high dynamic range (hdr) images
WO2018152063A1 (en) * 2017-02-15 2018-08-23 Dolby Laboratories Licensing Corporation Tone curve mapping for high dynamic range images

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2539917A (en) * 2015-06-30 2017-01-04 British Broadcasting Corp Method and apparatus for conversion of HDR signals
US20180047141A1 (en) * 2016-08-11 2018-02-15 Intel Corporation Brightness control for spatially adaptive tone mapping of high dynamic range (hdr) images
WO2018152063A1 (en) * 2017-02-15 2018-08-23 Dolby Laboratories Licensing Corporation Tone curve mapping for high dynamic range images

Also Published As

Publication number Publication date
GB2625218A (en) 2024-06-12
GB202402030D0 (en) 2024-03-27

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