VIDEO ENCODING/DECODING METHOD AND APPARATUS USING CHANNEL CORRELATION AND COMPUTER READABLE RECORDING MEDIUM THEREFOR

摘要

PURPOSE: A device and a method for encoding/decoding an image using channel correlation and a computer readable medium therefor are provided to reduce the amount of bits required by increasing the efficiency of intra prediction encoding. CONSTITUTION: A brightness signal encoder(310) outputs a bit stream about a brightness signal of a current block. A weighted value calculator(320) calculates a weighted value about a color difference signal of an adjacent pixel to every pixel. A color difference signal encoder(330) intra-prediction-codes a color difference signal for the current block by predicting the color difference signal of each pixel to be encoded using the weighted value.