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Old 15th April 2020, 20:40   #4  |  Link
scharfis_brain
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Join Date: Mar 2003
Location: Germany
Posts: 3,653
Quote:
Originally Posted by Blue_MiSfit View Post
Fun project!

Here's one thing I've been trying to wrap my mind around regarding HLG: I get that one of the big appeals is "backwards compatibility", and I totally see how, from an EOTF standpoint it's somewhat backwards compatible with SDR. In other words, you could feed an HLG signal to a dumb SDR display and the luminance would look mostly correct.

Interestingly enough, I do it the other way around:
Watching most SDR content with HLG.
This works quite well for most movie-like content
and b0rks most of the time with video-like content.

It seems that gradual luminance saturation (and chrominance desaturation) of the SDR film-curve in bright areas of the image fits the HLG-curve quite well.

On the other hand SDR with video-content peaking colors will look terrible with HLG applied.

My Sony OLED-TV allows to force the use of HLG on any type of input signal.
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