METHOD FOR ENCODING AND DECODING IMAGES, DEVICE FOR ENCODING AND DECODING IMAGES AND CORRESPONDING COMPUTER PROGRAMS

摘要

The invention relates to the encoding of at least one image (IN) split into partitions (PA1, PA2, ... PAn), characterised in that it implements, for a current partition to be encoded, the steps of: selecting (C2) at least one causal partition already encoded and then decoded; calculating (C4) at least one optimal encoding parameter (Idx1, Idx2, ..., IdxK) associated with said selected causal partition, according to a predetermined criterion of encoding performance, by comparing a plurality of encoding parameters applied to said selected causal partition; and encoding the current partition by means of said calculated optimum encoding parameter.