Methods and Systems for Inter-Layer Image Prediction Signaling

Abstract

Embodiments of the present invention comprise systems and methods for predicting high dynamic range (HDR) image blocks with block-specific prediction data, where the systems and methods may comprise low dynamic range (LDR) image data and HDR image data for a target image block, where a scaled, offset LDR image block may be combined with HDR residual image block to form an HDR image block corresponding to the target image block.

What is claimed is: 
     
         1 . A method for predicting a high dynamic range image block with differentially-coded prediction data, the method comprising:
 receiving high dynamic range (HDR) image data for a first image block, the first image block HDR image data comprising a first prediction data for the first image block;   receiving high dynamic range (HDR) image data for a second image block, the second image block HDR image data comprising a prediction difference data related to the first prediction data;   combining the first prediction data and the prediction difference data to determine second prediction data for the second image block; and   determining a first HDR residual image block based on the received HDR image data for the first image block and a decoded low dynamic range (LDR) image, wherein the LDR image is a scaled decoded LDR image, and wherein the scaled decoded LDR image is an offset scaled decoded LDR image.