Color volume transformations in coding of high dynamic range and wide color gamut sequences

摘要

A method of encoding digital video, comprising: a high dynamic range (HDR) master of video in a encoder, a reference standard dynamic range (SDR) master of video, and target SDR display properties receiving (target SDR display properties), finding a color volume conversion that converts HDR values from the HDR master to SDR values substantially similar to the SDR values in the reference SDR master when converted for display on the target SDR display. , Converting HDR values from the HDR master to SDR values using color volume conversion, generating metadata items identifying color volume conversion to decoders, and encoding SDR values into a bit stream. do.