Encoding, decoding, and representing high dynamic range images

摘要: Techniques are provided to encode and decode image data comprising a tone mapped (TM) with HDR reconstruction in the form of luminance ratios color residual values. In an example embodiment, ratio values channels space generated on individual pixel basis based high dynamic range (HDR) derivative tone-mapped that comprises one or more alterations would not be recoverable from TM image. The derived color-channel may outputted file downstream device, for example, decoding, rendering, and/or storing. decoded generate restored free alterations.