Coding of high dynamic range images

摘要

A method for encoding a sequence of pictures into a scalable bitstream comprising a first layer and a second layer is disclosed. The method comprises:
- encoding (10) a first version of the sequence of pictures into the first layer;
- reconstructing (12) at least one region of the first version of the
sequence of pictures;
wherein the method further comprises:
- processing (14) the reconstructed at least one region by applying a one-dimensional color Look Up Table independently on each color component of the reconstructed at least one region to get mapped color components and applying a matrix on the mapped color components to get correlated mapped color components;
- encoding (16) the one-dimensional color Look Up Table(s) and the matrix in the scalable bitstream; and
- encoding (18) a second version of the sequence of pictures from the processed at least one region into the second layer.