Method and apparatus for deriving intra prediction mode

An encoding method, comprising:

• deriving an intra prediction mode of a target block;
• and
• generating prediction information, wherein
• the prediction information indicates that the intra prediction mode of the target block is selected from a Most Probable Mode (MPM) list for a decoding for the target block,
• the MPM list is configured for the target block in the decoding for the target block, and
• the MPM list is used for intra prediction for each of a plurality of sub-blocks generated by dividing the target block for in decoding for the target block.

A non-transitory computer-readable medium storing a bitstream, the bitstream comprising:

• encoded information for a target block;
• wherein a decoding for the target block is performed using the encoded information,
• an intra prediction mode of a target block is derived;
• and
• intra prediction for the target block that uses the derived intra prediction mode is performed,
• the intra prediction mode of the target block is derived using a Most Probable Mode (MPM),
• an MPM list for the MPM is configured for the target block, and
• the MPM list is used for intra prediction for each of a plurality of sub-blocks generated by dividing the target block.