ColorWeb-CG

> 16 bit as standard. Do a gradient in an 8 bit Photoshop document and you will see how limited 8 bit info is. (OUR PAINT supports this). For interest, this seems to be an active issue for the HTML <canvas> element in browsers. There's a proposal[1] to extend the canvas data type to include both "unorm8" (the beloved default) and a new "float16" (normalised?) format - which should meet your desire? Typically, the proposal seems to have shipped already in Chrome/Edge browsers. Documentation around what the new functionality is for and how to make best use of it is (of course!) sparse - MDN barely mentions it. As a canvas library maintainer I find this upsetting (eg: Ignore it and it might Go Away). (I think for now my unhelpful response is: manipulate your RGB images as much as you like; just do it in the OKLAB color space.) [1] - https://

Does anyone else find the hubris in the first paragraph writing as off-putting as I do? "we finally explain what HDR actually means" Then spends 2/3rds of the article on a tone mapping expedition, only to not address the elephant in the room, that is the almost complete absence of predictable color management in consumer-grade digital environments. UIs are hardly ever tested in HDR: I don't want my subtitles to burn out my eyes in actual HDR display. It is here, where you, the consumer, are as vulnerable to light in a proper dark environment for movie watching, as when raising the window curtains on a bright summer morning. (That brightness abuse by content is actually discussed here) Dolby Vision and Apple have the lead here as a closed platforms, on the web it's simply not predictably possible yet. Best hope is the efforts of the Color

Here's how you do that in CSS4! For an image or video: - https://github.com/ccameron-chromium/hdr-headroom-limit/blob... - https://drafts.csswg.org/css-color-hdr/#controlling-dynamic-... For a canvas element: - https://github.com/w3c/ColorWeb-CG/blob/hdr_canvas_r2/hdr_ht... Resource: https://www.w3.org/TR/mediaqueries-5/#dynamic-range