- From: DanMan via GitHub <sysbot+gh@w3.org>
- Date: Wed, 19 Jun 2024 20:37:50 +0000
- To: public-css-archive@w3.org
> One of the often overlooked potential issues with PQ based HDR for home viewing is that because the standard is absolute there is no way to increase the display's light output to overcome surrounding room light levels - the peak brightness cannot be increased, and neither can the fixed gamma (EOTF) curve. > Referring to PQ as an 'absolute' standard means that for each input data level there is an absolute output luminance value, which has to be adhered to. There is no allowance for variation, such as changing the gamma curve (EOTF), or increasing the display's light output, as that is already maxed out. (This statement ignores dynamic metadata, more on which later.) Source: https://lightillusion.com/what_is_hdr.html Personal opinion: One thing HDR10 tried to achieve is that the image at home ought to match what the engineer saw on his monitor (and then fall off where the TV is inferior). That's why you need to adjust your viewing surrounding, because you can't increase brightness to adjust for daylight viewing conditions. Something for which TV manufacturers have added new settings to mitigate the issue. -- GitHub Notification of comment by DanMan Please view or discuss this issue at https://github.com/w3c/csswg-drafts/issues/10460#issuecomment-2179429001 using your GitHub account -- Sent via github-notify-ml as configured in https://github.com/w3c/github-notify-ml-config
Received on Wednesday, 19 June 2024 20:37:51 UTC