WO2000064189A3 - Safe color limiting of a color on a digital nonlinear editing system - Google Patents

Safe color limiting of a color on a digital nonlinear editing system Download PDF

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Publication number
WO2000064189A3
WO2000064189A3 PCT/US2000/010082 US0010082W WO0064189A3 WO 2000064189 A3 WO2000064189 A3 WO 2000064189A3 US 0010082 W US0010082 W US 0010082W WO 0064189 A3 WO0064189 A3 WO 0064189A3
Authority
WO
WIPO (PCT)
Prior art keywords
color
component
safe
components
chroma
Prior art date
Application number
PCT/US2000/010082
Other languages
French (fr)
Other versions
WO2000064189A9 (en
WO2000064189A2 (en
Inventor
Raymond D Cacciatore
Michael D Laird
Original Assignee
Avid Technology Inc
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 Avid Technology Inc filed Critical Avid Technology Inc
Priority to AU42429/00A priority Critical patent/AU4242900A/en
Publication of WO2000064189A2 publication Critical patent/WO2000064189A2/en
Publication of WO2000064189A3 publication Critical patent/WO2000064189A3/en
Publication of WO2000064189A9 publication Critical patent/WO2000064189A9/en

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/64—Circuits for processing colour signals
    • H04N9/646—Circuits for processing colour signals for image enhancement, e.g. vertical detail restoration, cross-colour elimination, contour correction, chrominance trapping filters
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/64—Circuits for processing colour signals
    • H04N9/67—Circuits for processing colour signals for matrixing

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Image Processing (AREA)

Abstract

A system and method of transforming a component color into safe color space. A color component of a first color space is received. The component color is transformed into safe color space by applying conversion terms to each component of the component color. The transformation into safe color space creates symmetrical relationships between the color components. These symmetrical relationships permit simplified operations to be performed on the component. The transformation may be used to generate safe color from components of a pixel according to a threshold defining safe color, where components include a luma component, a first chroma component, and a second chroma component. It is determined whether a combination of a first luma value associated with the luma component and a first chroma value associated with the first and second chroma components of the pixel exceeds the threshold defining safe color. If the combination exceeds the threshold defining safe color, one or more components of the pixel is modified to generate safe components.
PCT/US2000/010082 1999-04-16 2000-04-14 Safe color limiting of a color on a digital nonlinear editing system WO2000064189A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU42429/00A AU4242900A (en) 1999-04-16 2000-04-14 Safe color limiting of a color on a digital nonlinear editing system

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US29359099A 1999-04-16 1999-04-16
US09/293,590 1999-04-16

Publications (3)

Publication Number Publication Date
WO2000064189A2 WO2000064189A2 (en) 2000-10-26
WO2000064189A3 true WO2000064189A3 (en) 2001-02-15
WO2000064189A9 WO2000064189A9 (en) 2002-03-14

Family

ID=23129693

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2000/010082 WO2000064189A2 (en) 1999-04-16 2000-04-14 Safe color limiting of a color on a digital nonlinear editing system

Country Status (2)

Country Link
AU (1) AU4242900A (en)
WO (1) WO2000064189A2 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7403206B1 (en) 2003-10-01 2008-07-22 Microsoft Corporation Picking TV safe colors
US9736335B2 (en) 2015-04-15 2017-08-15 Apple Inc. Techniques for advanced chroma processing
US10397586B2 (en) 2016-03-30 2019-08-27 Dolby Laboratories Licensing Corporation Chroma reshaping
WO2017194312A2 (en) 2016-05-13 2017-11-16 Thomson Licensing Method and apparatus for video coding with adaptive clipping
EP3297282A1 (en) 2016-09-15 2018-03-21 Thomson Licensing Method and apparatus for video coding with adaptive clipping

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5657094A (en) * 1994-08-31 1997-08-12 Sony Corporation Video signal processing method and apparatus employing luminance and chroma estimates
WO1998011510A1 (en) * 1996-09-12 1998-03-19 Discreet Logic Inc. Processing image data

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5657094A (en) * 1994-08-31 1997-08-12 Sony Corporation Video signal processing method and apparatus employing luminance and chroma estimates
WO1998011510A1 (en) * 1996-09-12 1998-03-19 Discreet Logic Inc. Processing image data

Also Published As

Publication number Publication date
WO2000064189A9 (en) 2002-03-14
AU4242900A (en) 2000-11-02
WO2000064189A2 (en) 2000-10-26

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