DECODER SIDE INTRA MODE DERIVATION (DIMD) TOOL COMPUTATIONAL COMPLEXITY REDUCTION

The present disclosure relates to image encoding/decoding applying decoder side intra-prediction mode determination (DIMD). In order to reduce the computational complexity, DIMD for a current coding block based on a template of a neighboring reconstructed coding block is not performed if the border between the current and the reconstructed coding block concurs with a border between coding tree blocks.