CPC H04N 19/14 (2014.11) [H04N 19/12 (2014.11); H04N 19/176 (2014.11); H04N 19/60 (2014.11)] | 13 Claims |
1. An image decoding method, the method comprising:
obtaining maximum transform block size information;
deriving a maximum transform block size on the basis of the maximum transform block size information; and
determining whether or not a secondary inverse transform is applied to a current block based on the maximum transform block size and a horizontal size and a vertical size of the current block,
wherein the determining of whether or not the secondary inverse transform is applied comprises determining that the secondary inverse transform is not applied to the current block when a prediction mode of the current block is an inter-prediction mode.
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