New international standard BS IEC 61966-12-1 specifies metadata for identification of colour gamut (Gamut ID). BS IEC 61966-12-1 defines the colour gamut metadata scheme for video systems and similar applications.
The metadata can be associated with wide-gamut video colour content or to a piece of equipment to display the content.
BS IEC 61966-12-1 when associated with content the colour gamut metadata defines the gamut for which the content was created. It can be used by the display for controlled colour reproduction even if the display’s colour gamut is different from that of the content. The colour gamut metadata can cover associated colour encoding information, which includes all information required for a controlled colour reproduction, when such information is not provided by the colour encoding specification. The colour gamut metadata scheme provides scalable solutions. For example, more flexible solutions will be used for professional use, while much simpler solutions will be used for consumer use with easier product implementation.
Note: BS IEC 61966-12-1 only defines the colour gamut metadata scheme. Vendor-specific solutions for the creation and end-use of this metadata are allowed.
BS IEC 61966-12-1 on the identification of colour gamut (Gamut ID) is useful for:
BS IEC 61966-12-1 for high dynamic range (HDR) colour space encoding, such as ITU-R BT.2100, were established in order to be able to distribute content with a colour gamut and a dynamic range that is both extended with respect to classical colour encoding, such as that defined by ITU-R BT.709. With the increasing popularity of wide gamut and high dynamic range content and displays, the variety of colour gamut of displays is expected to increase.
BS IEC 61966-12-1 specifies a colour gamut metadata scheme for video systems including information for colour reproduction. This metadata can amend a video content or a display. More specifically, improvements can be achieved if the wide gamut colour content is created with knowledge of the display colour gamut as well as if the colour reproduction in the display is done with the knowledge of the colour gamut of the pictorial content.
BS IEC 61966-12-1 permits video systems to define their own colour gamut. BS IEC 61966-12-1 defines necessary metadata that allows managing inhomogeneous video systems with different colour gamut.
BS IEC 61966-12-1 allows the precise and flexible description of a colour gamut. The metadata supports graphics hardware, scalability, memory footprint efficiency, convex handling of non-convex gamut, handling of fuzzy colour gamut, and handling of gamut cusps.
BS IEC 61966-12-1:2020 supersedes BS EN 61966‑12‑1:2011, which is withdrawn.
BS IEC 61966-12-1:2020 includes some technical changes with respect to BS EN 61966‑12‑1:2011. These include:
IEC 61966-12-1 Ed2.0