多媒体系统和设备 色彩测量和管理 第12-2部分：色域识别的简单元数据格式

[中文适用范围]： 本部分 IEC 61966-12 规定了用于消费电子（CE）设备的视频系统的色域元数据格式。本部分 IEC 61966-12 中指定的元数据仅限于描述由三个原色组成的显示类型的色域，这些显示类型的白点和黑点具有相同的色度。它基本上基于传统的 VESA-EDID 格式。当与内容关联时，简单的元数据格式定义了内容创建的色域。即使显示的色域与内容的色域不同，显示也可以使用它来进行受控的色彩再现。当与显示关联时，简单的元数据格式定义了显示色域。它可以在内容创建过程中使用，以实现更好的色彩再现。本文档为基于色域信息通信的典型 CE 设备提供了最简单但明确的解决方案。 [外文原描述]： IEC 61966-12-2:2024 RLV contains both the official IEC International Standard and its Redline version. The Redline version is available in English only and provides you with a quick and easy way to compare all the changes between the official IEC Standard and its previous edition. IEC 61966-12-2:2024 specifies the colour gamut metadata format for video systems intended for use in CE (consumer electronics) devices. The metadata specified in this part of IEC 61966-12 is limited to the gamut description for display types comprising the three primary additive colours, whose white and black points have the same chromaticity. It is fundamentally based on the conventional VESA-EDID format. When associated with content, the simple metadata format 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. When associated with a display, the simple metadata format defines the display colour gamut. It can be used during content creation to enable improved colour reproduction. This document provides the simplest, but unambiguous solution for typical CE devices that are based on colour gamut information communication. IEC 61966-12-2:2024 cancels and replaces the first edition published in 2014. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: a) the number of bits of metadata format has been extended in Clause 4; b) Annex C has been added for handling HDR content.