- From: Pierre-Anthony Lemieux <pal@sandflow.com>
- Date: Tue, 27 Jun 2023 21:23:20 -0700
- To: public-png@w3.org
Good morning/evening, The Color on the Web CG [1] would very much appreciate any feedback the PNG WG might have on the following strawman, which motivates and proposes baseline modifications to the HTML Canvas API to enable support for High-Dynamic Range (HDR) imagery: https://github.com/w3c/ColorWeb-CG/blob/8eac62f15e5b41940636beb031f6214b61e933af/hdr_html_canvas_element.md The proposed modifications allow the HTML Canvas API to manipulate High Dynamic Range (HDR) images expressed using the widespread BT.2100 PQ and BT.2100 HLG color spaces, without precluding adding future HDR capabilities, such as support for additional color spaces like a linear high-dynamic range RGB color space. Note that the strawman has specific recommendations on tone-mapping and the use of mastering display metadata. These recommendations should ideally be consistent with those of HDR PNG since an HDR PNG image should ideally render close or identically to the same image in an HDR HTML Canvas. Best, -- Color on the Web CG chairs [1] https://www.w3.org/community/colorweb/
Received on Wednesday, 28 June 2023 04:23:38 UTC