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HDR and SDR describe different approaches to representing brightness and colour, while resolution describes image dimensions. HDR can preserve a wider range of highlights and shadows when the source and display support it. A 4K stream can be SDR, and an HDR stream need not be 4K.
Explore guide ↗HDR formats have different signalling and processing requirements. A television, player and application must support the format being delivered through the chosen path. HDR10, Dolby Vision and HLG should not be treated as interchangeable labels, nor does support for one automatically establish support for the others.
Explore guide ↗HLG, or Hybrid Log-Gamma, is an HDR system associated with television production and distribution. Seeing HLG in an input banner describes the format being received, not a guarantee that every programme on the channel was captured with the same dynamic range or picture quality.
Explore guide ↗Tone mapping adapts a programme’s brightness information to a display’s capabilities. Different screens and picture modes make different choices about highlights, midtones and dark areas. The result can vary even when both televisions correctly identify the same HDR format and resolution.
Explore guide ↗A mismatch between the source, player output and display interpretation can make HDR appear washed out. Incorrect picture settings or an unsuitable conversion path can also contribute. First establish whether the programme is HDR and whether the display has entered an appropriate mode before increasing colour saturation.
Explore guide ↗HDR films can contain deliberately dark scenes, and a bright room reduces your ability to see shadow detail. Display capability, tone mapping and picture mode also matter. Start by reducing reflections and checking the active HDR preset before changing unrelated black-level controls.
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