HLG, or Hybrid Log-Gamma, is a video HDR (High Dynamic Range) standard developed by the BBC and NHK. It is designed to provide a wider range of brightness and color in video content, making images appear more lifelike. HLG is compatible with both HDR and standard dynamic range displays, allowing for broader accessibility. HLG works by combining traditional gamma curves with HDR techniques, enabling it to deliver high-quality visuals without requiring metadata. This makes it particularly useful for live broadcasts and streaming, as it simplifies the process of delivering HDR content to various devices and platforms.