HDMI 2.1a to Introduce New Feature Called Source-Based Tone Mapping (SBTM)

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Image: HDMI LA



An update to the HDMI 2.1 specification appears to be just around the corner, and it’s poised to introduce at least one exciting new feature.



As announced by the HDMI Licensing Administrator (HDMI LA) during a pre-CES 2022 virtual press conference this week, HDMI 2.1a will introduce a new feature called Source-Based Tone Mapping (SBTM). SBTM aims to enhance and optimize the HDR experience by improving the way a display might handle varying forms of content (e.g., HDR, SDR, dynamic HDR, graphics) that are shown on screen at the same time.



Image: HDMI.org



“For example, when you view a menu of video thumbnails from a streaming video service...

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