Chroma coding enhancement in cross-component correlation

An electronic apparatus comprising:

• one or more processing units;
• memory coupled to the one or more processing units;
• and
• a plurality of programs stored in the memory that, when executed by the one or more processing units, cause the electronic apparatus to perform acts comprising:
• determining a plurality of offsets associated with a first component of a plurality of color components included in the video signal;
• utilizing a characteristic measurement of a second component of the plurality of color components to obtain a classification category associated with the first component;
• selecting a first offset from the plurality of offsets for the first component according to the classification category;
• obtaining a modified sample value of the first component based on the selected first offset;
• and
• signaling the plurality of offsets associated with the first component.

A method for storing a bitstream, comprising:

• generating a bitstream by performing an encoding method;
• and
• storing the bitstream,
• wherein the encoding method comprises:
• determining a plurality of offsets associated with a first component of a plurality of color components included in a video signal;
• utilizing a characteristic measurement of a second component of the plurality of color components to obtain a classification category associated with the first component;
• selecting a first offset from the plurality of offsets for the first component according to the classification category;
• obtaining a modified sample value of the first component based on the selected first offset;
• and
• signaling the plurality of offsets associated with the first component.