AN INTRA-PREDICTION APPARATUS FOR REMOVING A DIRECTIONAL INTRA-PREDICTION MODE FROM A SET OF PREDETERMINED DIRECTIONAL INTRA-PREDICTION MODES

摘要

The invention relates to an intra-prediction apparatus (100) for removing a directional intra-prediction mode from a set of predetermined directional intra-prediction modes. The intra-prediction apparatus (100) comprises a reference sample determining unit (101) configured to select the directional intra-prediction mode from the set of predetermined directional intra-prediction modes, and to determine a plurality of available reference samples, a directional intra-prediction mode removing unit (103) configured to remove the directional intra-prediction mode from the set of predetermined directional intra-prediction modes if a length (L_RSlonger) associated with the plurality of available reference samples is smaller than a multiple of a length (L_longer) of a first side of the video coding block for obtaining a reduced set, and an intra-prediction unit (105) configured to intra-predict pixel values of pixels of the rectangular video coding block on the basis of the reduced set. The intra-prediction apparatus (100) can further comprise an area determining unit (107).