Patent ID: 8385412

Claim:
An apparatus, comprising: an encoder for encoding a block of a picture using an encoding process, wherein the encoding process comprises applying inverse tone mapping to inter-layer residue prediction for the block, wherein the inverse tone mapping is performed in the pixel domain, and wherein the encoder 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 encoder performs the inter-layer residue prediction process by said motion compensator performing motion compensation in an enhancement layer of the picture to obtain an enhancement layer prediction, said tone mapper performing tone mapping on the enhancement layer prediction into a base layer of the picture to obtain a tone mapped motion compensated low bit depth prediction for the block, said combiner adding 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 performing the inverse tone mapping on the sum into the enhancement layer to obtain a higher bit depth prediction for the block.