FIELD: information technology.
SUBSTANCE: invention relates to methods of encoding and decoding information. Coding method includes a step of setting an index, and a predictive coding step. Step for setting index sets an index, which is information of reference image and weight. Predicting step predicts in such a way that reference weight value when change between pixel values at least one reference image and a target image to be encoded is a specific reference or less is output as a predicted value. Encoding step encodes a difference value between weighting factor and predicted value.
EFFECT: technical result of invention is to improve efficiency of coding information.
14 cl, 28 dwg
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