9/17/2023 0 Comments Toshiba firmware update tv![]() ![]() HLG is designed to be better-suited for television broadcasting, where the metadata required for other HDR formats is not backward compatible with non-HDR displays, consumes additional bandwidth, and may also become out-of-sync or damaged in transmission. They are supported by HDMI 2.0b, HEVC, VP9, and H.264/MPEG-4 AVC, and are used by video services such as BBC iPlayer, DirecTV, Freeview Play, and YouTube. The backward compatibility allows them to be used with existing transmission standards when the receiver is compatible with the BT.2020 colour container, reducing complexity and cost for both equipment manufacturers and content distributors. īoth HLG transfer function and the HLG format are royalty-free. However, HLG is not intended to be fully backward compatible with traditional SDR displays that cannot interpret BT.2020 colorimetry. HLG was designed to be backward compatible with SDR UHDTV. HLG is an HDR format that uses the HLG transfer function, BT.2020 color primaries and a bitdepth of 10-bit. HLG uses a logarithmic curve for the upper half of the signal values, which allows for a larger dynamic range. Chart showing a conventional SDR gamma curve and the hybrid log–gamma curve.
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