Method and apparatus for improving the prediction of a block of the enhancement layer

摘要

A method (350) includes: applying (S360) inverse tone mapping operations to a block (b b ) of a first layer ( l b ) and to a prediction block (b b ) of the block ( b b ) of the first layer ( l b ) , respectively, computing (S365) a residual prediction error r b e in a second layer ( l e ), and computing (S370) a prediction ( p e ) of a block of the second layer (l e ).