Patent ID: 8537894

Claim:
An apparatus, comprising: a decoder for decoding a block of a picture by applying inverse tone mapping in the pixel domain, wherein said decoder includes: a motion compensator; a tone mapper directly coupled to said motion compensator; a combiner directly coupled to said tone mapper; a spatial upsampler directly coupled to said combiner; an inverse tone mapper coupled to said combiner; and wherein said motion compensator performs motion compensation in an enhancement layer of the picture to obtain an enhancement layer prediction, said tone mapper performs tone mapping on the enhancement layer prediction of the picture to obtain a tone mapped motion compensated low bit depth prediction for the block, said combiner adds a spatially upsampled residue from the base layer to the tone mapped motion compensated low bit depth prediction for the block to obtain a sum, and said inverse tone mapper performs the inverse tone mapping on the sum to obtain a higher bit depth prediction for the block.