No Original Thought
 First Officer
Flight distance : 1479026 ft
United Kingdom
Offline
|
You cannot, by definition, view HDR-like dynamic range on a non-HDR display.
However, by using HLG (High log gamma) you encode the HDR information in a way that a non-HDR display ignored the additional information which results in the best possible compromise.
If you display non-HLG HDR content on a non-HDR display then you will get what looks like colour banding as the display is unable to represent all of the shades described in the video data. The colour shades are effectively 'clipped' at the brightest that the display can show and everything that is brighter on the video is displayed at that 'display brightest' shade.
With HLG the shades that are beyond SDR are encoded differently, so you get a good image on an SDR (is non-HDR) display, but an HDR HLG display can use the extra information to recreate the full HDR ranges.
(I hope that makes sense) |
|