LUMA-DRIVEN CHROMA SCALING FOR HIGH DYNAMIC RANGE AND WIDE COLOR GAMUT CONTENTS
First Claim
1. A method of video data decoding in high dynamic range and wide color gamut operations, the method comprising:
- obtaining video data, the video data including a scaled chroma component and a luma component, the scaled chroma component being scaled based on a chroma scaling factor that is a non-linear function of the luma component;
obtaining the chroma scaling factor for the scaled chroma component;
generating a chroma component from the scaled chroma component based on the chroma scaling factor; and
outputting the chroma component.
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Abstract
The present disclosure provides various aspects related to luma-driven chroma scaling for high dynamic range and wide color gamut contents. For example, a method of video data decoding may include obtaining video data, where the video data includes a scaled chroma component and a luma component, and where the scaled chroma component is scaled based on a chroma scaling factor that is a non-linear function of the luma component. The method may also include obtaining the chroma scaling factor for the scaled chroma component and generating a chroma component from the scaled chroma component based on the chroma scaling factor. In addition, the method may include outputting the chroma component, which may then be used for further processing.
71 Citations
20 Claims
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1. A method of video data decoding in high dynamic range and wide color gamut operations, the method comprising:
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obtaining video data, the video data including a scaled chroma component and a luma component, the scaled chroma component being scaled based on a chroma scaling factor that is a non-linear function of the luma component; obtaining the chroma scaling factor for the scaled chroma component; generating a chroma component from the scaled chroma component based on the chroma scaling factor; and outputting the chroma component. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A device for video data decoding in high dynamic range and wide color gamut operations, the device comprising:
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a memory configured to store video data; and a processor configured to; obtain the video data, the video data including a scaled chroma component and a luma component, the scaled chroma component being scaled based on a chroma scaling factor that is a non-linear function of the luma component; obtain the chroma scaling factor for the scaled chroma component; generate a chroma component from the scaled chroma component based on the chroma scaling factor; and output the chroma component. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19)
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20. A computer-readable medium storing code for video data decoding in high dynamic range and wide color gamut operations, the code being executable by a processor to perform a method comprising:
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obtaining video data, the video data including a scaled chroma component and a luma component, the scaled chroma component being scaled based on a chroma scaling factor that is a non-linear function of the luma component; obtaining the chroma scaling factor for the scaled chroma component; generating a chroma component from the scaled chroma component based on the chroma scaling factor; and outputting the chroma component.
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Specification