Cross component sample clipping

A computing system, comprising:

• control circuitry;
• and
• memory storing one or more programs configured to be executed by the control circuitry, the one or more programs further comprising instructions for:
• receiving video data including a current non-monochrome image frame with two or more color components, the current non-monochrome image frame including a sample with a first color component and a second color component, wherein the second color component is different from the first color component;
• deriving a first clipping range for pixel values of the first color component in the sample;
• deriving a second clipping range for pixel values of the second color component in the sample based on the first clipping range, wherein the second clipping range for the pixel values of the second color component includes a plurality of contiguous data intervals, and each contiguous data interval corresponds to a data interval of the first clipping range for the pixel values of the first color component;
• signaling, in a video bitstream, information of the plurality of contiguous data intervals and information of the data interval of the first clipping range corresponding to each of the plurality of contiguous data intervals;
• when a pixel value of the second color component exceeds the second clipping range, restricting the pixel value to a minimum value or a maximum value corresponding to the second clipping range;
• and
• encoding the current non-monochrome image frame using the restricted pixel value for the sample.

A method of obtaining a video bitstream, the video bitstream comprising:

• coded data video information for a current non-monochrome image frame with two or more color components, the current non-monochrome image frame including a sample with a first color component and a second color component, wherein the second color component is different from the first color component;
• and
• information of a plurality of contiguous data intervals for a second clipping range and information of a data interval of a first clipping range corresponding to each of the plurality of contiguous data intervals;
• the method comprising:
• deriving the first clipping range for pixel values of the first color component in the sample;
• deriving the second clipping range for pixel values of the second color component in the sample based on the first clipping range, wherein the second clipping range for the pixel values of the second color component includes the plurality of contiguous data intervals;
• signaling, in the video bitstream, information of the plurality of contiguous data intervals and information of the data interval of the first clipping range corresponding to each of the plurality of contiguous data intervals;
• when a pixel value of the second color component exceeds the second clipping range, restricting the pixel value to a minimum value or a maximum value corresponding to the second clipping range;
• and
• encoding the current non-monochrome image frame using the restricted pixel value for the sample.