FIELD: video encoding and decoding.
SUBSTANCE: video decoding apparatus is provided that includes a receiving circuit and a processing circuit that decodes block prediction information from an encoded video bitstream, determines whether to enable a palette-based coding mode for the block, based on comparing the block size with a threshold value, and, based on the prediction information, determines whether the block is under the local dual tree structure. In addition, the processing circuit decodes the block based on determining whether to enable the palette-based coding mode for the block and determining whether the block is under a local dual tree structure.
EFFECT: increased efficiency of image/video encoding.
41 cl, 12 dwg
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