logoalt Hacker News

mort96today at 8:08 AM1 replyview on HN

If the brightness cap of the HDR image is full SDR brightness, what value remains in HDR? As far as I can see, it's all bath water, no baby


Replies

Dylan16807today at 9:06 AM

> If the brightness cap of the HDR image is full SDR brightness, what value remains in HDR?

If you set #ffffff to be a comfortable max, then that would be the brightness cap for HDR flares that fill the entire screen.

But filling the entire screen like that rarely happens. Smaller flares would have a higher cap.

For example, let's say an HDR scene has an average brightness that's 55% of #ffffff, but a tenth of the screen is up at 200% of #ffffff. That should give you a visually impressive boosted range without blinding you.

show 1 reply