Lic signaling methods

An apparatus comprising:

• at least one memory configured to store computer program code;
• and
• at least one processor configured to access the at least one memory and operate according to the computer program code, the computer program code comprising:
• first applying code configured to cause the at least one processor to receive information regarding a current data block of an image;
• second applying code configured to cause the at least one processor to determine whether Local Illumination Compensation (LIC) is applicable for the current data block, wherein the determining of whether LIC is applicable for the current block includes determining whether the current data block is coded with affine inter prediction;
• third applying code configured to cause the at least one processor to, based on determining that the LIC is applicable for the current data block, at least one of:
• infer an LIC flag for the current data block to be 1 or true corresponding to the LIC being enabled, or inherit the current block's LIC flag from an LIC flag of a neighboring block;
• and
• fourth applying code configured to cause the at least one processor to, based on the LIC flag for the current data block corresponding to the LIC being enabled, generate a prediction of at least one sub-block with a derived motion vector by applying LIC to the current data block using the inherited LIC flag.

A non-transitory computer-readable storage medium storing instructions that cause one or more processors to:

• receive information regarding a current data block of an image;
• determine whether Local Illumination Compensation (LIC) is applicable for the current data block, wherein the determining of whether LIC is applicable for the current block includes determining whether the current data block is coded with affine inter prediction;
• based on determining that the LIC is applicable for the current data block, at least one of:
• infer an LIC flag for the current data block to be 1 or true corresponding to the LIC being enabled, or inherit the current block's LIC flag from an LIC flag of a neighboring block;
• and
• based on the LIC flag for the current data block corresponding to the LIC being enabled, generate a prediction of at least one sub-block with a derived motion vector by applying LIC to the current data block using the inherited LIC flag.