- From: DanMan via GitHub <sysbot+gh@w3.org>
- Date: Sat, 22 Jun 2024 18:26:50 +0000
- To: public-css-archive@w3.org
> the PQ signal which got converted to HLG… …is then not a PQ signal anymore. So how does that matter? > PQ is no different than any other display referred signal. They all describe the absolute luminance… So you agree it's absolute? I'm confused about what point you're trying to make. Again, the spec basically says that for video signal X, the display is supposed to render at luminance Y, does it not? > …on the reference display Which the viewing display is supposed to follow as closely as possible, right? Exactly because display-referred LUTs match the colours on the reference monitor. If the viewing display didn't follow that, what's the point in having a display-referred LUT/TF in the first place? > Displays do re-render the images to adjust between the differences between the reference display and reference viewing environment and the actual display and actual viewing environment. But you don't have much control over that. The display will switch the LCD backlight to max brightness, if a HDR10 signal is detected. You're then at the mercy of the display in terms of tone mapping. But that's irrelevant from the POV of the spec, which defines a 1:1 mapping of input signal to luminance. Don't you agree? -- GitHub Notification of comment by DanMan Please view or discuss this issue at https://github.com/w3c/csswg-drafts/issues/10460#issuecomment-2184144148 using your GitHub account -- Sent via github-notify-ml as configured in https://github.com/w3c/github-notify-ml-config
Received on Saturday, 22 June 2024 18:26:51 UTC