Method for color mapping a video signal based on color mapping data and method of encoding a video signal and color mapping data and corresponding devices
AssigneeThomson Licensing
InventorsPierre ANDRIVON, Sebastien LASSERRE, Phillippe BORDES
Life of this patent
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Abstract
A method of color mapping a video signal represented in a first color volume from color mapping data to be applied on a video signal represented in a second color volume is disclosed. The method comprises:—color mapping (14) said video signal represented in a first color volume from said first color volume into said second color volume in the case where said first and second color volumes are different; and—color mapping (16) said color mapped video signal based on said color mapping data.
Claims11
A method of color mapping comprising:
- obtaining an indicator indicating whether a color mapping based on color mapping data is to be applied directly on a video signal represented in a first color volume or whether said color mapping based on said color mapping data is to be applied on said video signal after a prior color mapping of said video signal from said first color volume into a second color volume different from said first color volume and further indicating said second color volume;
- color mapping said video signal by applying the color mapping data directly on the video signal in the case where said indicator indicates said color mapping based on said color mapping data is to be applied directly on the video signal represented in the first color volume;
- and otherwise
- color mapping said video signal by color mapping said video signal from said first color volume into said second color volume and by applying the color mapping data on the video signal represented in said second color volume.
(canceled)
A device of color mapping a comprising at least a processor configured to:
- obtain an indicator indicating whether a color mapping based on color mapping data is to be applied directly on a video signal represented in a first color volume or whether said color mapping based on said color mapping data is to be applied on said video signal after a prior color mapping of said video signal from said first color volume into a second color volume different from said first color volume and further indicating said second color volume;
- color map said video signal by applying the color mapping data directly on the video signal in the case where said indicator indicates said color mapping based on said color mapping data is to be applied directly on the video signal represented in the first color volume;
- and otherwise
- color map said video signal by color mapping said video signal from said first color volume into said second color volume and by applying the color mapping data on the video signal represented in said second color volume.
(canceled)
A storage media having a signal encoded thereupon, the signal comprising color mapping data to be applied in a given color volume;
- and
- an indicator indicating whether a color mapping based on color mapping data is to be applied directly on a video signal represented in a first color volume or whether said color mapping based on said color mapping data is to be applied on said video signal after a prior color mapping of said video signal from said first color volume into a second color volume different from said first color volume and further indicating said given color volume.
Dependencies are inferred from the claim text.