svgeesus / png-hdr-pq

Timed Text Working Group and PNG

Using the ITU BT.2100 PQ EOTF with the PNG Format

This specification defines a mechanism for storing images that use the Reference PQ EOTF specified in ITU-R BT.2100 in the Portable Network Graphics (PNG) format, without modification to existing chunks or the introduction of new chunks.

Editor's draft: https://w3c.github.io/png-hdr-pq/