METHOD AND DEVICE FOR ENCODING/ DECODING IMAGE SUPPORTING PLURALITY OF LAYERS

摘要

A method and device for encoding/decoding an image supporting a plurality of layers are disclosed. The method for decoding the image includes: the step of receiving a bitstream including information on a decoding target block of the current layer; the step of entropy decoding the bitstream and obtaining a 1D array of conversion coefficients of the decoding target block; the step of scanning the 1D array of the conversion coefficients according to a scan order and re-arranging it as a 2D array of the conversion coefficients; the step of inversely quantizing the 2D array of the conversion coefficients and obtaining a 2D array of conversion coefficients inversely quantized for the decoding target block; and the step of predicting the decoding target block based on a prediction mode for the decoding target block.