METHOD FOR CODING/DECODING OF INTRA PREDICTION MODE AND APPARATUS THEREOF

摘要

PURPOSE: An intra-prediction mode encoding/decoding method and a computer-readable recording medium are provided to improve efficiency in encoding and decoding an image. CONSTITUTION: A device for encoding an image includes a motion prediction part, a motion compensation part, an intra-prediction part, a switch, a subtracter, a conversion part, a quantization part, an entropy encoding part, an inverse quantization part, an inverse conversion part, an adder, a filter part, and a referential picture buffer. An intra-prediction mode decoding method includes: a step (S1310) of deriving peripheral prediction mode information including an angle difference between peripheral prediction modes and/or the mode number of the peripheral prediction mode using a decoder; and a step (S1320) of decoding an intra-prediction mode using the peripheral prediction mode information using the decoder. [Reference numerals] (S1310) Draw information about a peripheral prediction mode; (S1320) Decode an intra-prediction mode using the peripheral prediction mode information