Adapting luma mapping with chroma scaling to 4:4:4 rgb image content
AssigneeInterDigital CE Patent Holdings, SAS
InventorsEdouard Francois, Franck Hiron, Christophe Chevance, Remi Jullian
Life of this patent
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Abstract
At least a method and an apparatus are presented for efficiently encoding or decoding video by adapting Luma mapping with Chroma scaling for 4:4:4 RGB content. For example, a format of an image data of a video to encode is determined to be RGB format; and responsively a RGB mapping is applied to at least one of the color components of the image data wherein a RGB mapping adjusts the dynamic range of a color component of an image data in RGB format. Then, the video is encoded based on the at least one RGB mapped color component.
Claims22
1-24. (canceled)
A method for video decoding, comprising:
- determining that a format of an image data of a video to decode is RGB format;
- responsively applying an inverse in-loop RGB mapping to at least one of the color components of the image data wherein a RGB mapping adjusts a dynamic range of a color component of the image data in RGB format;
- and
- decoding the video based on the at least on inverse RGB mapped color component.
An apparatus for video decoding, comprising one or more processors, wherein the one or more processors are configured to:
- determine that a format of an image data of a video to decode is RGB format;
- apply an inverse in-loop RGB mapping to at least one of the color components of the image data wherein a RGB mapping adjusts a dynamic range of a color component of the image data in RGB format;
- and
- decode the video based on the at least on inverse RGB mapped color component.
A method for video encoding, comprising:
- determining that a format of an image data of a video to encode is RGB format;
- responsively applying an in-loop RGB mapping to at least one of the color components of the image data wherein a RGB mapping adjusts a dynamic range of a color component of the image data in RGB format;
- and
- encoding the video based on the at least one RGB mapped color component.
An apparatus for video encoding, comprising one or more processors, wherein the one or more processors are configured to:
- determine that a format of an image data of a video to encode is RGB format;
- responsively apply an in-loop RGB mapping to at least one of the color components of the image data wherein the in-loop RGB mapping adjusts a dynamic range of a color component of an image data in RGB format;
- and
- encode the video based on the at least one RGB mapped color component.
A non-transitory computer readable medium containing data content encoded thereupon by:
- determining that a format of an image data of the data content to encode is RGB format;
- responsively applying an in-loop RGB mapping to at least one of the color components of the image data wherein the in-loop RGB mapping adjusts a dynamic range of a color component of an image data in RGB format;
- and
- encoding the data content based on the at least one RGB mapped color component.
Dependencies are inferred from the claim text.